Radar · Sustainability Tech in United Kingdom
Best Sustainability Tech Companies in United Kingdom
The 1976 best Sustainability Tech companies in United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Octopus Energy.
By Riya SenguptaFinancials
1976companies tracked
$15.3Bdisclosed funding
4unicorns
717have raised
Ranked by disclosed equity funding and recent momentum, this directory covers 1,976 Sustainability Tech companies operating across the United Kingdom, a market that's collectively raised $15.3 billion in tracked funding. That's not a rounding error. Octopus Energy alone accounts for $2.0 billion of that total, and Kinetics adds another $400 million, which tells you something real about where capital concentrates when the renewable transition gets serious. Four unicorns have emerged from this cohort, and the most active backers, including Europa, the EIC Fund, and Scottish Enterprise, have kept deal flow moving even as broader coverage has stayed flat.
So what's driving the heat right now? Renewable electricity, green infrastructure, and the wider renewable transition are the themes pulling the most attention inside this directory. I'd note that coverage momentum staying flat doesn't mean the money has cooled, it means the large checks are clustering. GridBeyond's $76 million and Iceotope's $46 million sit well below the Octopus Energy figure, but they signal a real mid-tier building out beneath the headline names. The funding spread here is wide, and if you're trying to map where UK sustainability capital actually flows, the gap between the top earner and the rest is the first number worth sitting with.
Sources & further reading
- Top 15 Sustainability Experts 2025
- Miliband backs solar and wind projects covering farmland nearly the size of Manc
- Green levies threat to bills after wind farms expansion – Daily Business
FLIAR INTELLIGENCE · SUSTAINABILITY TECH × UNITED KINGDOM
Our analysis of 59 Sustainability Tech companies
$4.5b in tracked funding; 81% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
59companies analysed
81%cloud-native stacks
2025funding peak (by rounds)
1unicorns
2019median founding year
1Mcombined LinkedIn audience
71%of audience held by top 3
11companies hiring publicly (12 mo)
Ranked: Best Sustainability Tech companies in United Kingdom
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Market signals (1y) | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Octopus Energy 🦄 Retailer of electricity and gas providing heat pumps and chargers 95Tech top 11%Funding top 14%Market top 15%Patents top 16% All 14 signals ▾Techtop 11% Fundingtop 14% Markettop 15% Patentstop 16% Newstop 21% Partnerstop 22% Moattop 22% Fin. healthtop 23% Talenttop 25% Innovationtop 27% Customerstop 28% Producttop 29% Growthtop 33% Globaltop 37% Tech: 66 technologies across 7/8 capability areas · Cloud: Amazon Alb, Amazon Cloudfront Funding: Raised $2.0B across 4 rounds · 4 rounds over 6 yrs (0.7/yr) rank vs industry peers · Fliar Intelligence Index 95/100 | $2.0B | 5 mo ago | Series F | 1,579 | Aj Lawrence Co-Founder & Group CFO | 8 signals ▲60% Contracts · New product · Capital raise | 394 patents Smart energy management and demand‑response systems for electricity grids and EV charging | 1 launch · 1 award |
| 2 | Kinetics Developer of floating LNG assets and renewable energy platforms 60Funding top 27%Patents top 28%Innovation top 36%Talent bottom 49% All 5 signals ▾Fundingtop 27% Patentstop 28% Innovationtop 36% Talentbottom 49% Globalbottom 43% Funding: Raised $400M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Patents: 64 patents matched (strict assignee match) · 57 filings since 2022 vs 7 in 2017-21 rank vs industry peers · Fliar Intelligence Index 60/100 | $400M | 7 mo ago | Funding Raised | — | Mehmet Katmer CEO | — | 64 patents Real-time 3D mapping and interactive simulation of motor racing tracks and events | — |
| 3 | F2g Developer of therapeutic treatments for rare and life threatening infections 64Fin. health top 22%Funding top 23%Moat top 26%Growth top 28% All 11 signals ▾Fin. healthtop 22% Fundingtop 23% Moattop 26% Growthtop 28% Patentstop 38% Markettop 45% Innovationtop 46% Talentbottom 49% Globalbottom 47% Techbottom 28% Newsbottom 22% Fin. health: Revenue ~$101M Funding: Raised $353M across 12 rounds · 12 rounds over 24 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 64/100 | $353M | 21 mo ago | Series H | 27 | Francesco Lavino CEO | — | 142 patents Antifungal heterocyclic drug compounds and their pharmaceutical formulations. | — |
| 4 | Hometree Provider of an online platform for home insurance 62Funding top 24%Product top 25%Growth top 27%Tech top 28% All 10 signals ▾Fundingtop 24% Producttop 25% Growthtop 27% Techtop 28% Innovationtop 39% Moattop 39% Talentbottom 49% Globalbottom 39% Marketbottom 34% Newsbottom 21% Funding: Raised $268M across 12 rounds · 12 rounds over 10 yrs (1.2/yr) Product: 12 distinct product lines · Company stage: Series C rank vs industry peers · Fliar Intelligence Index 62/100 | $268M | 20 mo ago | Series C | 59 59 → 130 (+120%) | Simon Phelan Co-Founder & CEO | — | — | 1 partnership |
| 5 | Kraken Provider of utility management solution 83Funding top 22%Fin. health top 23%Tech top 32%Growth top 33% All 9 signals ▾Fundingtop 22% Fin. healthtop 23% Techtop 32% Growthtop 33% Talenttop 38% Markettop 41% AItop 45% Globalbottom 39% Moatbottom 38% Funding: Raised $150M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Fin. health: Revenue ~$171M · Revenue 1.1x total funding rank vs industry peers · Fliar Intelligence Index 83/100 | $150M | 5 mo ago | Series D | 376 | Matthew Potts Co-Founder | — | — | — |
| 6 | GeoPura Manufacturer of hydrogen power units for clean energy generation systems 53Funding top 31%Moat top 31%Growth top 34%Tech top 34% All 11 signals ▾Fundingtop 31% Moattop 31% Growthtop 34% Techtop 34% Talenttop 45% Innovationtop 48% Patentstop 50% Globalbottom 39% Marketbottom 35% Partnersbottom 34% Newsbottom 28% Funding: Raised $125M across 6 rounds · 6 rounds over 6 yrs (1.0/yr) Moat: Editorial + unicorn rating 8/10 · IP moat: 7 patents rank vs industry peers · Fliar Intelligence Index 53/100 | $125M | 20 mo ago | Series B | 37 | Andrew Cunningham Founder & CEO | — | 7 patents Photovoltaic power generation systems and related solar energy conversion technology. | 1 partnership |
| 7 | Vicebio Developer of vaccines to treat viral infectious diseases 35Growth top 15%Funding top 26%News top 26%Moat top 47% All 9 signals ▾Growthtop 15% Fundingtop 26% Newstop 26% Moattop 47% Talentbottom 49% Globalbottom 37% Patentsbottom 35% Marketbottom 25% Innovationbottom 22% Growth: Fresh capital in last 24 mo Funding: Raised $100M across 1 rounds · 1 rounds over 2 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 35/100 | $100M | 20 mo ago | Acquired | 4 | Emmanuel Hanon CEO | 6 signals ▲500% M&A | 2 patents Recombinant chimeric fusion protein vaccines for hMPV and RSV respiratory viruses | — |
| 8 | CIRCTEC Producer of sustainable fuels and circular chemicals from end-of-life tyres 35Funding top 21%Talent top 38%Growth top 43%Moat bottom 48% All 8 signals ▾Fundingtop 21% Talenttop 38% Growthtop 43% Moatbottom 48% Globalbottom 39% Techbottom 35% Newsbottom 27% Marketbottom 25% Funding: Raised $81.5M across 9 rounds · 9 rounds over 2 yrs (4.5/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 35/100 | $82M | 20 mo ago | Series C | 7 | Allen Timpany Co-Founder & CEO | — | — | — |
| 9 | Fuse Energy Provider of cost-effective and sustainable electricity solutions 64Growth top 15%Funding top 28%News top 29%Talent top 38% All 10 signals ▾Growthtop 15% Fundingtop 28% Newstop 29% Talenttop 38% Innovationtop 39% Techtop 43% Producttop 43% Moattop 49% Globalbottom 39% Marketbottom 36% Growth: Web rank 5,000,000 → 1,000,000 YoY · App-install growth +280% YoY Funding: Raised $78.0M across 3 rounds · 3 rounds over 4 yrs (0.8/yr) rank vs industry peers · Fliar Intelligence Index 64/100 | $78M | 6 mo ago | Series B | 33 | Alan Chang Co-Founder & CEO | 5 signals Funding | — | 2 job openings |
| 10 | BeZero Carbon Provider of carbon ratings and risk analytics for carbon projects 57Growth top 26%Funding top 31%Moat top 31%Talent top 38% All 9 signals ▾Growthtop 26% Fundingtop 31% Moattop 31% Talenttop 38% Techtop 40% Markettop 49% Globalbottom 39% Fin. healthbottom 31% Newsbottom 18% Growth: Headcount 28 → 90 (+221%) across vintages · Web rank 5,000,000 → 10,000,000 YoY Funding: Raised $77.2M across 5 rounds · 5 rounds over 6 yrs (0.8/yr) rank vs industry peers · Fliar Intelligence Index 57/100 | $77M | 17 mo ago | Series C | 90 90 → 159 (+77%) | Sebastien Cross Co-Founder | — | — | — |
| 11 | GridBeyond Provider of software for managing distributed energy resources and assets 35Funding top 32%Talent top 38%Moat top 39%News top 45% All 10 signals ▾Fundingtop 32% Talenttop 38% Moattop 39% Newstop 45% Growthtop 47% Techbottom 48% Globalbottom 47% Partnersbottom 42% Fin. healthbottom 35% Marketbottom 29% Funding: Raised $76.1M across 12 rounds · 12 rounds over 16 yrs (0.8/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 35/100 | $76M | 3 mo ago | Series C | 16 | Michael Phelan Co-Founder & CEO | 4 signals Funding · Contracts | — | 1 launch · 1 award |
| 12 | Centauri Therapeutics Developer of immunotherapeutics to treat infectious diseases 35Funding top 26%Growth top 35%Moat top 36%Patents top 46% All 9 signals ▾Fundingtop 26% Growthtop 35% Moattop 36% Patentstop 46% Talentbottom 49% Innovationbottom 42% Globalbottom 42% Techbottom 41% Marketbottom 25% Funding: Raised $64.9M across 12 rounds · 12 rounds over 11 yrs (1.1/yr) Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 35/100 | $65M | 3 mo ago | Series A | 6 | Jennifer Schneider CEO | — | 50 patents Patents concentrated in chemistry & materials | — |
| 13 | Storegga Geotechnologies Developer of carbon capture and hydrogen projects 35Growth top 23%Moat top 31%Funding top 34%Talent bottom 49% All 9 signals ▾Growthtop 23% Moattop 31% Fundingtop 34% Talentbottom 49% Techbottom 40% Globalbottom 39% Marketbottom 38% Newsbottom 23% Fin. healthbottom 14% Growth: Headcount 49 → 83 (+69%) across vintages · 2 acquisition/expansion moves in 24 mo Moat: Editorial + unicorn rating 8/10 · Soonicorn rank vs industry peers · Fliar Intelligence Index 35/100 | $63M | 13 mo ago | Series A | 83 83 → 60 (-28%) | Tim Stedman CEO | — | — | — |
| 14 | Rivan Manufacturer of synthetic natural gas using carbon capture and electrolysis 40Funding top 35%Growth top 35%Talent bottom 49%Global bottom 45% All 6 signals ▾Fundingtop 35% Growthtop 35% Talentbottom 49% Globalbottom 45% Marketbottom 37% Techbottom 36% Funding: Raised $47.5M across 3 rounds · 3 rounds over 2 yrs (1.5/yr) Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 40/100 | $48M | 1 mo ago | Series A | — | Harvey Hodd Founder & CEO | — | — | 1 partnership · 1 expansion |
| 15 | Iceotope Manufacturer of precision liquid cooling systems for computer hardware components 53Innovation top 12%Patents top 13%Moat top 26%Funding top 30% All 12 signals ▾Innovationtop 12% Patentstop 13% Moattop 26% Fundingtop 30% Talenttop 38% Techtop 49% Producttop 49% Globaltop 50% Marketbottom 46% Growthbottom 37% Fin. healthbottom 23% Newsbottom 21% Innovation: 175 patents (top 9% of patent-holders) · 119 filings since 2022 vs 38 in 2017-21 Patents: 175 patents matched (strict assignee match) · 119 filings since 2022 vs 38 in 2017-21 rank vs industry peers · Fliar Intelligence Index 53/100 | $46M | 1 mo ago | Series B | 114 114 → 61 (-46%) | David Craig Co-CEO | — | 175 patents Liquid immersion cooling systems and components for high‑performance electronic thermal management | 1 award |
| 16 | 4401 Earth Provider of accelerated mineralisation process for permanent carbon dioxide removal 42Funding top 32%Talent top 38%Tech top 49%Growth bottom 47% All 7 signals ▾Fundingtop 32% Talenttop 38% Techtop 49% Growthbottom 47% Marketbottom 39% Globalbottom 39% Newsbottom 18% Funding: Raised $42.0M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 42/100 | $42M | 17 mo ago | Series A | 50 | Karan Khimji Co-Founder & Chief Commercial Officer | — | — | 1 job opening · 2 partnerships · 1 award |
| 17 | D2 PropCo Provider of temporary housing for vulnerable adults and young people 55Funding top 35%Talent bottom 49%Global bottom 36% All 3 signals ▾Fundingtop 35% Talentbottom 49% Globalbottom 36% Funding: Raised $37.7M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 55/100 | $38M | 2 mo ago | Funding Raised | — | Duncan Evans Chief Executive Officer | — | — | 1 job opening · 1 partnership |
| 18 | Risilience SaaS-based climate analytics platform 27Funding top 27%Talent top 28%Moat top 38%Product top 46% All 9 signals ▾Fundingtop 27% Talenttop 28% Moattop 38% Producttop 46% Marketbottom 37% Globalbottom 37% Patentsbottom 32% Innovationbottom 23% Newsbottom 22% Funding: Raised $34.3M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) Talent: 4 named leaders on record · 4 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 27/100 | $34M | 15 mo ago | Series B | 20 | Michelle Tuveson Co-Founder | — | 2 patents AI-driven risk assessment and impact modeling for engineering systems | — |
| 19 | HVS Developer of hydrogen fuel cell powertrain systems for heavy goods vehicles 29Growth top 35%Funding top 36%Moat top 39%Talent bottom 49% All 8 signals ▾Growthtop 35% Fundingtop 36% Moattop 39% Talentbottom 49% Techbottom 47% Globalbottom 37% Newsbottom 36% Marketbottom 15% Growth: Fresh capital in last 24 mo Funding: Raised $34.2M across 5 rounds · 5 rounds over 6 yrs (0.8/yr) rank vs industry peers · Fliar Intelligence Index 29/100 | $34M | 16 mo ago | Series C | 6 | Abdul Waheed Founder & CEO | — | — | — |
| 20 | Origen Limestone based direct air capture technology 40Growth top 35%Funding top 36%Talent top 38%Global bottom 48% All 6 signals ▾Growthtop 35% Fundingtop 36% Talenttop 38% Globalbottom 48% Techbottom 42% Marketbottom 25% Growth: Fresh capital in last 24 mo Funding: Raised $30.8M across 9 rounds · 9 rounds over 8 yrs (1.1/yr) rank vs industry peers · Fliar Intelligence Index 40/100 | $31M | 17 mo ago | Series A | — | Tim Kruger Founder | — | — | — |
| 21 | OXCCU Developer of sustainable fuels, chemicals, and plastics from CO2. 45Funding top 28%Growth top 28%Talent top 28%News top 46% All 8 signals ▾Fundingtop 28% Growthtop 28% Talenttop 28% Newstop 46% Techbottom 42% Globalbottom 38% Moatbottom 38% Marketbottom 22% Funding: Raised $22.7M across 5 rounds · 5 rounds over 3 yrs (1.7/yr) Growth: Web rank 50,000,000 → 10,000,000 YoY · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 45/100 | $23M | 7 mo ago | Series B | 3 | Peter Edwards Co-Founder | — | — | — |
| 22 | Mixergy Provider of app-based residential heat storage solution 53Moat top 25%Innovation top 28%Patents top 29%Product top 29% All 10 signals ▾Moattop 25% Innovationtop 28% Patentstop 29% Producttop 29% Growthtop 31% Fundingtop 38% Techtop 44% Globalbottom 40% Marketbottom 23% Newsbottom 18% Moat: Editorial + unicorn rating 7/10 · IP moat: 70 patents Innovation: 70 patents (top 47% of patent-holders) · 55 filings since 2022 vs 15 in 2017-21 rank vs industry peers · Fliar Intelligence Index 53/100 | $22M | 15 mo ago | Series C | 32 32 → 51 (+59%) | — | — | 70 patents Efficient water heating and heat‑pump energy buffering systems for residential/commercial use | 1 award |
| 23 | Snowfox Discovery Developer of exploration models for identifying natural hydrogen energy resources 35Growth top 35%Funding top 42%Talent bottom 49%Global bottom 45% All 6 signals ▾Growthtop 35% Fundingtop 42% Talentbottom 49% Globalbottom 45% Techbottom 39% Marketbottom 30% Growth: Fresh capital in last 24 mo Funding: Raised $19.2M across 3 rounds · 3 rounds over 3 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 35/100 | $19M | 10 mo ago | Series A | — | Daniel McMahon Co-Founder & CEO | — | — | 1 partnership |
| 24 | Immaterial Manufacturer of nanoscale metal-organic frameworks 40Patents top 30%News top 32%Growth top 35%Funding top 36% All 11 signals ▾Patentstop 30% Newstop 32% Growthtop 35% Fundingtop 36% Innovationtop 37% Moattop 38% Talenttop 38% Partnerstop 45% Globalbottom 43% Marketbottom 23% Techbottom 23% Patents: 21 patents matched (strict assignee match) · 20 filings since 2022 vs 1 in 2017-21 News: 4 BI events in 12 mo (of 5 tracked, 2 types) · Top themes: Funding, Capital raise rank vs industry peers · Fliar Intelligence Index 40/100 | $18M | 4 mo ago | Series A | 14 | David Fairen-Jimenez Co-Founder & CSO | 4 signals Funding · Capital raise | 21 patents Patents concentrated in transport & manufacturing processes | — |
| 25 | Xampla Manufacturer of plant based bio-degradable packaging products 50Patents top 29%Moat top 32%Funding top 33%Innovation top 35% All 10 signals ▾Patentstop 29% Moattop 32% Fundingtop 33% Innovationtop 35% Growthtop 35% Techtop 36% Talenttop 38% Newsbottom 42% Globalbottom 39% Marketbottom 20% Patents: 55 patents matched (strict assignee match) · 55 filings since 2022 vs 0 in 2017-21 Moat: Editorial + unicorn rating 7/10 · IP moat: 55 patents rank vs industry peers · Fliar Intelligence Index 50/100 | $18M | 9 mo ago | Series A | 1 | Marc Garcia Co-Founder & CTO | — | 55 patents Biodegradable plant‑protein biopolymers for packaging, coatings, and microencapsulation. | — |
| 26 | Verv AI-driven energy monitoring solution for homes 48Funding top 29%Growth top 35%Tech top 36%AI top 45% All 8 signals ▾Fundingtop 29% Growthtop 35% Techtop 36% AItop 45% Talentbottom 49% Productbottom 48% Globalbottom 39% Marketbottom 18% Funding: Raised $17.7M across 15 rounds · 15 rounds over 11 yrs (1.4/yr) Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 48/100 | $18M | 8 mo ago | Series A | 5 | Peter Davies Founder & CEO | — | — | 1 job opening |
| 27 | tem Provider of renewable electricity semiconductors manufacturing services 53Talent top 23%Growth top 28%News top 32%Funding top 33% All 9 signals ▾Talenttop 23% Growthtop 28% Newstop 32% Fundingtop 33% Techtop 33% Partnerstop 45% Moatbottom 38% Globalbottom 37% Marketbottom 22% Talent: 6 named leaders on record · 5 C-suite/founder profiles curated Growth: Web rank 50,000,000 → 10,000,000 YoY · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 53/100 | $17M | 4 mo ago | Series B | 6 | Jason Stocks Co-Founder & CCO | 4 signals Funding · Capital raise | — | 1 job opening · 1 launch · 1 award |
| 28 | Arenko Provider of software for automated control of energy storage assets 24Growth top 39%Moat top 48%Tech top 50%Funding bottom 42% All 8 signals ▾Growthtop 39% Moattop 48% Techtop 50% Fundingbottom 42% Newsbottom 40% Globalbottom 37% Partnersbottom 34% Marketbottom 25% Growth: Headcount 23 → 26 (+13%) across vintages · Fresh capital in last 24 mo Moat: Editorial + unicorn rating 5/10 · 9 curated direct competitors tracked rank vs industry peers · Fliar Intelligence Index 24/100 | $14M | 12 mo ago | Series A | 26 | — | — | — | — |
| 29 | Utopi Provider of SaaS platform to manage smart buildings 35Funding top 36%Tech bottom 49%Talent bottom 49%Market bottom 42% All 7 signals ▾Fundingtop 36% Techbottom 49% Talentbottom 49% Marketbottom 42% Productbottom 40% Newsbottom 32% Globalbottom 32% Funding: Raised $13.0M across 2 rounds · 2 rounds over 4 yrs (0.5/yr) Tech: 23 technologies across 3/8 capability areas · Cloud: Cloudflare rank vs industry peers · Fliar Intelligence Index 35/100 | $13M | 11 mo ago | Seed | 52 | Jonathan Burridge Founder & CEO | — | — | 2 launchs |
| 30 | Altilium Developer of technology for recycling electric vehicle batteries into battery materials 24Talent top 28%Funding top 35%Moat top 39%News top 43% All 7 signals ▾Talenttop 28% Fundingtop 35% Moattop 39% Newstop 43% Growthbottom 40% Globalbottom 39% Marketbottom 23% Talent: 3 named leaders on record · 3 C-suite/founder profiles curated Funding: Raised $12.0M across 7 rounds · 7 rounds over 3 yrs (2.3/yr) rank vs industry peers · Fliar Intelligence Index 24/100 | $12M | 2 mo ago | Series B | 4 | Sean Joseph Co-Founder | 6 signals ▼68% Funding · Capital raise | — | — |
| 31 | Sunsave Provider of residential solar energy systems through a subscription model 57Tech top 23%Growth top 25%News top 28%Talent top 38% All 8 signals ▾Techtop 23% Growthtop 25% Newstop 28% Talenttop 38% Fundingtop 39% Moattop 48% Globalbottom 39% Marketbottom 28% Tech: 32 technologies across 6/8 capability areas · Cloud: Amazon Cloudfront, Amazon Ses Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 57/100 | $12M | 10 mo ago | Series A | 7 | Alick Dru Co-Founder & CEO | 6 signals Funding | — | 1 job opening · 1 launch · 1 award |
| 32 | Orbital Marine Power Manufacturer of floating tidal stream turbines for generating renewable electricity 24Moat top 32%Talent top 38%Patents top 39%Tech top 42% All 11 signals ▾Moattop 32% Talenttop 38% Patentstop 39% Techtop 42% Innovationtop 45% Newstop 45% Fundingtop 48% Globalbottom 40% Growthbottom 38% Marketbottom 29% Fin. healthbottom 15% Moat: Editorial + unicorn rating 7/10 · IP moat: 40 patents Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 24/100 | $11M | 6 mo ago | Series A | 41 | Barry Johnston Founder | — | 40 patents Tidal energy conversion devices and marine mooring/anchor systems for offshore power generation | — |
| 33 | Epoch Biodesign Developer of biorecycling platform for mixed plastics and textiles. 37Funding top 34%Growth top 38%Patents top 45%News bottom 49% All 10 signals ▾Fundingtop 34% Growthtop 38% Patentstop 45% Newsbottom 49% Talentbottom 49% Moatbottom 47% Innovationbottom 44% Globalbottom 42% Techbottom 38% Marketbottom 35% Funding: Raised $11.0M across 4 rounds · 4 rounds over 4 yrs (1.0/yr) Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 37/100 | $11M | 2 mo ago | Series A | 25 | Jacob Nathan Founder & CEO | 3 signals Funding | 3 patents Enzymatic and chemical recycling of polyolefin plastics | — |
| 34 | EpilepsyGTx Developer of gene therapies for focal refractory epilepsy 13News top 38%Funding top 40%Partners top 45%Talent bottom 49% All 7 signals ▾Newstop 38% Fundingtop 40% Partnerstop 45% Talentbottom 49% Globalbottom 36% Techbottom 30% Marketbottom 25% News: 3 BI events in 12 mo (of 5 tracked, 1 types) · Top themes: Funding Funding: Raised $10.0M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 13/100 | $10M | 6 mo ago | Series A | — | Nicolas Koebel CEO | 3 signals Funding | — | — |
| 35 | iFAST Diagnostics Standalone pathology laboratory center 40News top 24%Growth top 25%Talent top 33%Funding top 47% All 9 signals ▾Newstop 24% Growthtop 25% Talenttop 33% Fundingtop 47% Techbottom 48% Productbottom 39% Innovationbottom 37% Globalbottom 37% Marketbottom 17% News: 10 BI events in 12 mo (of 26 tracked, 5 types) · +233% YoY Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 40/100 | $9M | 0 mo ago | Seed | 6 | Hywel Morgan Co-Founder & CTO | 10 signals ▲233% Earnings · Leadership | — | 1 partnership · 2 awards |
| 36 | ULEMCo Manufacturer of hydrogen fuel systems for heavy duty transport equipment 21Product top 36%Moat top 38%Funding top 45%Talent bottom 49% All 11 signals ▾Producttop 36% Moattop 38% Fundingtop 45% Talentbottom 49% Patentsbottom 48% Innovationbottom 46% Newsbottom 44% Globalbottom 36% Techbottom 35% Partnersbottom 34% Marketbottom 27% Product: 8 distinct product lines · Company stage: Series A Moat: Editorial + unicorn rating 5/10 · IP moat: 31 patents rank vs industry peers · Fliar Intelligence Index 21/100 | $8M | 7 mo ago | Series A | 12 12 → 26 (+117%) | Amanda Lyne Founder & CEO & Managing Director | — | 31 patents Hybrid diesel‑hydrogen compression engines and hydrogen leak detection systems | 1 job opening · 1 partnership · 1 award |
| 37 | Zevero Provider of carbon management software and sustainability consulting services 53Talent top 28%Funding top 33%Tech top 35%Innovation top 37% All 10 signals ▾Talenttop 28% Fundingtop 33% Techtop 35% Innovationtop 37% Producttop 46% Growthtop 48% Moattop 48% Newsbottom 39% Globalbottom 36% Marketbottom 29% Talent: 4 named leaders on record · 4 C-suite/founder profiles curated Funding: Raised $7.0M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 53/100 | $7M | 2 mo ago | Acquired | 8 | Benjamin Richardson Co-Founder & Chief Sustainability Officer | 4 signals ▼50% M&A · Funding | — | 1 partnership · 1 award |
| 38 | Cyclana Bio Developer of tissue and matrix biology treatments for women's health 24Talent top 38%Funding top 40%Global bottom 48%Tech bottom 45% All 5 signals ▾Talenttop 38% Fundingtop 40% Globalbottom 48% Techbottom 45% Marketbottom 25% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Funding: Raised $6.7M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 24/100 | $7M | 7 mo ago | Seed | — | Kevin Chalut Co-Founder & CSO | — | — | 2 partnerships |
| 39 | CUR8 Online platform offering carbon offset solution 32Growth top 30%News top 32%Funding top 43%Tech top 50% All 10 signals ▾Growthtop 30% Newstop 32% Fundingtop 43% Techtop 50% Talentbottom 48% Productbottom 39% Innovationbottom 37% Globalbottom 37% Partnersbottom 35% Marketbottom 25% Growth: Fresh capital in last 24 mo News: 5 BI events in 12 mo (of 15 tracked, 5 types) · +25% YoY rank vs industry peers · Fliar Intelligence Index 32/100 | $7M | 8 mo ago | Seed | 3 | Marta Krupinska Co-Founder & CEO | 5 signals ▲25% Funding · Contracts · Leadership | — | 1 launch |
| 40 | Shellworks Biotech startup Shellworks is focused on creating sustainable alternatives to plastic packaging by turning… 32Funding top 37%Talent top 38%Moat top 41%Growth top 45% All 9 signals ▾Fundingtop 37% Talenttop 38% Moattop 41% Growthtop 45% Techbottom 49% Globalbottom 42% Patentsbottom 41% Marketbottom 33% Innovationbottom 30% Funding: Raised $6.2M across 4 rounds · 4 rounds over 4 yrs (1.0/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 32/100 | $6M | 8 mo ago | Series A | 21 | Insiya Jafferjee Co-Founder & CEO | — | 2 patents Sterile primary packaging solutions for injectable medical devices and drug delivery systems. | — |
| 41 | Infex Therapeutics Developer of drugs for treating multiple infectious diseases 37Patents top 27%Innovation top 33%Funding top 44%Moat top 45% All 8 signals ▾Patentstop 27% Innovationtop 33% Fundingtop 44% Moattop 45% Talentbottom 49% Globalbottom 44% Techbottom 37% Marketbottom 32% Patents: 60 patents matched (strict assignee match) · 50 filings since 2022 vs 10 in 2017-21 Innovation: 60 patents (top 42% of patent-holders) · 50 filings since 2022 vs 10 in 2017-21 rank vs industry peers · Fliar Intelligence Index 37/100 | $6M | 1 mo ago | Series A | 23 23 → 24 (+4%) | Pete Jackson CEO | — | 60 patents Small-molecule antivirals and metallo‑beta‑lactamase inhibitors for infectious diseases | — |
| 42 | Black Bull Biochar Provider of biochar solutions for agricultural and industrial systems 11Talent top 38%Funding top 50%Global bottom 32%Market bottom 19% All 4 signals ▾Talenttop 38% Fundingtop 50% Globalbottom 32% Marketbottom 19% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Funding: Raised $5.4M across 3 rounds · 3 rounds over 4 yrs (0.8/yr) rank vs industry peers · Fliar Intelligence Index 11/100 | $5M | 5 mo ago | Seed | 3 | Hamish Creber Co-Founder & CTO | — | — | 1 internship |
| 43 | Online Oceans Developer of autonomous ocean drones for real-time data collection services 19Talent top 38%Funding top 42%Tech bottom 38%Global bottom 33% All 5 signals ▾Talenttop 38% Fundingtop 42% Techbottom 38% Globalbottom 33% Marketbottom 25% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Funding: Raised $5.4M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 19/100 | $5M | 1 mo ago | Series A | — | Alistair Douglas Co-Founder & CTO | — | — | — |
| 44 | Heat Geek Network of installers providing heat pump installation and related services 45Tech top 29%Growth top 35%Talent bottom 49%Funding bottom 44% All 6 signals ▾Techtop 29% Growthtop 35% Talentbottom 49% Fundingbottom 44% Globalbottom 37% Marketbottom 34% Tech: 61 technologies across 5/8 capability areas · Cloud: Cloudflare, Google Cloud Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 45/100 | $5M | 3 mo ago | Seed | — | Adam Chapman Founder | — | — | — |
| 45 | Previsico Provider of flood forecasting and monitoring platform for risk mitigation 35Funding top 39%Tech top 42%Innovation top 48%Growth top 48% All 9 signals ▾Fundingtop 39% Techtop 42% Innovationtop 48% Growthtop 48% Productbottom 45% Talentbottom 40% Globalbottom 39% Newsbottom 36% Marketbottom 26% Funding: Raised $5.1M across 4 rounds · 4 rounds over 7 yrs (0.6/yr) Tech: 20 technologies across 4/8 capability areas · Cloud: Amazon Ses, Amazon Web Services rank vs industry peers · Fliar Intelligence Index 35/100 | $5M | 7 mo ago | Series A | 15 | Jonathan Jackson CEO | — | — | 1 partnership · 1 award |
| 46 | Polytag Provider of drinking water services 37Talent top 28%Tech top 34%Product top 46%Growth top 47% All 10 signals ▾Talenttop 28% Techtop 34% Producttop 46% Growthtop 47% Innovationbottom 46% Fundingbottom 46% Newsbottom 46% Globalbottom 37% Partnersbottom 35% Marketbottom 26% Talent: 3 named leaders on record · 3 C-suite/founder profiles curated Tech: 29 technologies across 4/8 capability areas · Cloud: Amazon Cloudfront, Amazon Web Services rank vs industry peers · Fliar Intelligence Index 37/100 | $4M | 4 mo ago | Series A | — | Phil Frsa Co-Founder | 3 signals ▼40% Contracts · New product · Announcements | — | 1 partnership |
| 47 | Bloemteknik Provider of precision LED lighting solutions and autonomous control systems 24Product top 47%Talent bottom 49%Global bottom 45%Funding bottom 44% All 4 signals ▾Producttop 47% Talentbottom 49% Globalbottom 45% Fundingbottom 44% Product: 2 published apps (30 installs) · Company stage: Series A Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 24/100 | $3M | 5 mo ago | Series A | — | James Fleet Co-Founder & CEO | — | — | — |
| 48 | RheEnergise Developer of high-density hydro long-duration energy storage technology 24Talent top 28%Patents top 38%Moat top 42%Innovation top 48% All 8 signals ▾Talenttop 28% Patentstop 38% Moattop 42% Innovationtop 48% Techbottom 45% Fundingbottom 44% Globalbottom 40% Marketbottom 19% Talent: 3 named leaders on record · 3 C-suite/founder profiles curated Patents: 19 patents matched (strict assignee match) · 19 filings since 2022 vs 0 in 2017-21 rank vs industry peers · Fliar Intelligence Index 24/100 | $3M | 6 mo ago | Seed | 10 | Graham Cook Co-Founder & CFO | — | 19 patents Patents concentrated in mechanical & energy engineering | — |
| 49 | xWatts Provider of energy management solutions for education, healthcare, industrial, and real estate 14Talent top 38%Funding top 44%Moat top 48%Tech bottom 45% All 6 signals ▾Talenttop 38% Fundingtop 44% Moattop 48% Techbottom 45% Globalbottom 37% Marketbottom 15% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Funding: Raised $2.7M across 4 rounds · 4 rounds over 3 yrs (1.3/yr) rank vs industry peers · Fliar Intelligence Index 14/100 | $3M | 4 mo ago | Seed | 2 | Alexander Allen Co-Founder & CPO | — | — | — |
| 50 | Barocal Developer of solid-state barocaloric refrigeration technology. 19Growth top 45%Funding top 48%Talent bottom 49%Tech bottom 38% All 6 signals ▾Growthtop 45% Fundingtop 48% Talentbottom 49% Techbottom 38% Globalbottom 37% Marketbottom 17% Growth: Web rank 10,000,000 → 50,000,000 YoY · Fresh capital in last 24 mo Funding: Raised $1.8M across 2 rounds · 2 rounds over 4 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 19/100 | $2M | 1 mo ago | Seed | 2 | Xavier Moya Co-Founder | — | — | — |
Top 12 Sustainability Tech companies in United Kingdom
#1
Series F · London, England · founded 2015 · 1579 employees$2Braised▾
Series F · London, England · founded 2015 · 1579 employees
Retailer of electricity and gas providing heat pumps and chargers. This business supplies residential and commercial energy through various tariff structures. It facilitates the installation of renewable energy hardware including solar panels, battery storage systems, and electric vehicle charging equipment. The service includes the management of energy export from private generation sources and the provision of smart technology to monitor and adjust consumption patterns.
Fliar Intelligence Index™ 95how this company ranks against its industry peers
Tech
top 11%Funding
top 14%Market
top 15%Patents
top 16%News
top 21%Partners
top 22%Tech: 66 technologies across 7/8 capability areas · Cloud: Amazon Alb, Amazon Cloudfront · Devops: Nginx
Funding: Raised $2.0B across 4 rounds · 4 rounds over 6 yrs (0.7/yr) · Last round Series F (Dec 2025)
Market: 1,579 employees (top 11% of Energy Tech) · Revenue ~$17.5B · Top-50,000 web property
Audience (LinkedIn): 471k LinkedIn followers — 46.1% of this cohort's audience
Activity (LinkedIn): 1 product launches · 1 awards announced in 12 mo
Funding rounds
- Dec 2025Series F—
- Dec 2023Series F$800M
- Dec 2021Series E$300M
- Sep 2021Series E$655M
Founders & team
Investors
CPP Investments, Generation Investment Management, Tokyo Gas, Origin Energy, D1 Capital Partners, Fidelity
Tech stack
Amazon AlbAmazon CloudfrontAmazon Web ServicesAmplitudeApolloApple Icloud Mail
#2
Series B · Sheffield, England · founded 2005 · 114 employees$46Mraised▾
Series B · Sheffield, England · founded 2005 · 114 employees
Manufacturer of precision liquid cooling systems for computer hardware components. These systems utilize dielectric fluid to remove heat from processors, memory, storage, and power supply units. The technology supports high-density computing environments by managing thermal loads and reducing energy consumption. The hardware is designed for deployment in data centers and edge computing facilities to maintain performance levels for intensive workloads.
Fliar Intelligence Index™ 53how this company ranks against its industry peers
Innovation
top 12%Patents
top 13%Moat
top 26%Funding
top 30%Talent
top 38%Tech
top 49%Innovation: 175 patents (top 9% of patent-holders) · 119 filings since 2022 vs 38 in 2017-21 · Deep-tech classification: Tech Hardware
Patents: 175 patents matched (strict assignee match) · 119 filings since 2022 vs 38 in 2017-21 · Latest publication 2026
Moat: Editorial + unicorn rating 8/10 · IP moat: 175 patents · Soonicorn
Audience (LinkedIn): 11k LinkedIn followers
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
- May 2026Series B$26M
- Jan 2025Series B$7.1M
- Jun 2022Series B$36.8M
- Jun 2021Series A$4.2M
Founders & team
Investors
nVent, Northern Gritstone, Edinv, British Patient Capital, Pavilion Capital Partners, ABC Impact
Tech stack
AzureAzure Edge NetworkAzure Front DoorCloudflareCloudflare Bot ManagementCloudflare Turnstile
#3
Series C · London, England · founded 2007 · 16 employees$76.1Mraised▾
Series C · London, England · founded 2007 · 16 employees
Provider of software for managing distributed energy resources and assets. This technology platform enables the monitoring and control of flexible energy loads, generation equipment, and storage systems. It facilitates participation in grid balancing services and electricity markets by optimizing the dispatch of connected resources. The system processes data points to manage energy consumption and production, supporting the integration of renewable generation and industrial demand response.
Fliar Intelligence Index™ 35how this company ranks against its industry peers
Funding
top 32%Talent
top 38%Moat
top 39%News
top 45%Growth
top 47%Tech
bottom 48%Funding: Raised $76.1M across 12 rounds · 12 rounds over 16 yrs (0.8/yr) · Last round Series C (Mar 2026)
Talent: 2 named leaders on record · 2 C-suite/founder profiles curated
Moat: Editorial + unicorn rating 7/10 · 9 curated direct competitors tracked
Audience (LinkedIn): 29k LinkedIn followers — 2.8% of this cohort's audience
Activity (LinkedIn): 1 product launches · 1 awards announced in 12 mo
Funding rounds
- Mar 2026Series C$13.8M
- Apr 2025Grant (prize money)$2.8M
- Apr 2024Series C$55.3M
- Oct 2022Conventional Debt$5.8M
Founders & team
Investors
Europa, ESB Investments, Act Venture Capital, EDP, TotalEnergies Carbon Neutrality Ventures, Alantra
Tech stack
Apache Http ServerAzureCalendlyCdnjsCloudflareCloudflare Bot Management
#4
Funding Raised · London, England · founded 2024$400Mraised▾
Funding Raised · London, England · founded 2024
Developer of floating LNG assets and renewable energy platforms. It builds, develops, delivers, and leases these assets. The company specializes in battery energy storage systems. It aims to meet the needs of utilities, governments, and independent power producers. The company focuses on redefining energy infrastructure deployment and access in a decarbonizing world.
Fliar Intelligence Index™ 60how this company ranks against its industry peers
Funding
top 27%Patents
top 28%Innovation
top 36%Talent
bottom 49%Global
bottom 43%Funding: Raised $400M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) · Last round Conventional Debt (Nov 2025)
Patents: 64 patents matched (strict assignee match) · 57 filings since 2022 vs 7 in 2017-21 · Latest publication 2026
Innovation: 64 patents (top 49% of patent-holders) · 57 filings since 2022 vs 7 in 2017-21
Audience (LinkedIn): 1k LinkedIn followers
Activity (LinkedIn): 1 partnerships · 1 expansions (incl. Amogy) announced in 12 mo
Funding rounds
- Nov 2025Conventional Debt$400M
Founders & team
#5
Series A · London, England · founded 2001$47.5Mraised▾
Series A · London, England · founded 2001
Manufacturer of synthetic natural gas using carbon capture and electrolysis. This process utilizes water electrolysis and carbon dioxide capture to produce methane. The resulting fuel serves as a drop-in replacement for conventional natural gas in industrial applications that cannot be powered by electricity. The production method integrates solar energy to facilitate the conversion of captured carbon and hydrogen into fuel.
Fliar Intelligence Index™ 40how this company ranks against its industry peers
Funding
top 35%Growth
top 35%Talent
bottom 49%Global
bottom 45%Market
bottom 37%Tech
bottom 36%Funding: Raised $47.5M across 3 rounds · 3 rounds over 2 yrs (1.5/yr) · Last round Series A (Apr 2026)
Growth: Fresh capital in last 24 mo
Talent: 1 named leader on record · 1 C-suite/founder profile curated
Audience (LinkedIn): 10k LinkedIn followers
Hiring (LinkedIn): 1 hiring post in 12 mo (public) · hiring: Computational Scientist
Activity (LinkedIn): 1 partnerships · 1 expansions (incl. Wales & West Utilities) announced in 12 mo
Funding rounds
- Apr 2026Series A$34M
- Jul 2025Seed$253.8K
- Nov 2024Seed$13.3M
Founders & team
Investors
Plural, 20VC Fund, NFDG, IQ Capital, Fundomo, Bare Metal Ventures
Tech stack
BugherdHstsHttp/3JqueryMysqlNginx
#6
Series A · Kent, England · founded 2014 · 6 employees$64.9Mraised▾
Series A · Kent, England · founded 2014 · 6 employees
Developer of immunotherapeutics to treat infectious diseases. The company has proprietary Alphamer technology based on "programmable immunity" in which chemically synthesised molecules redirect naturally occurring antibodies to selected pathogens to fight the infections.
Fliar Intelligence Index™ 35how this company ranks against its industry peers
Funding
top 26%Growth
top 35%Moat
top 36%Patents
top 46%Talent
bottom 49%Innovation
bottom 42%Funding: Raised $64.9M across 12 rounds · 12 rounds over 11 yrs (1.1/yr) · Last round Series A (Feb 2026)
Growth: Fresh capital in last 24 mo
Moat: Editorial + unicorn rating 4/10 · IP moat: 50 patents · Soonicorn
Audience (LinkedIn): 3k LinkedIn followers
Funding rounds
- Feb 2026Series A$8.1M
- Jul 2025Grant (prize money)$5.1M
- Nov 2024Grant (prize money)$1.3M
- Jul 2023Series A$11.5M
Founders & team
Investors
Kent County Council, EJ Capital, Wren Capital, Discovery Park, Renaissance Capital Partners, Animatrix Capital Llp
Tech stack
CookiebotGodaddyGoogle AnalyticsHstsJqueryMicrosoft 365
#7
Series D · London, England · founded 2019 · 376 employees$150Mraised▾
Series D · London, England · founded 2019 · 376 employees
Provider of utility management solution. It offers an energy tech platform based on data and machine learning capabilities. It specializes in customer information systems including billing.
Fliar Intelligence Index™ 83how this company ranks against its industry peers
Funding
top 22%Fin. health
top 23%Tech
top 32%Growth
top 33%Talent
top 38%Market
top 41%Funding: Raised $150M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) · Last round Series D (Dec 2025)
Fin. health: Revenue ~$171M · Revenue 1.1x total funding
Tech: 37 technologies across 5/8 capability areas · Cloud: Amazon Web Services, Cloudflare · Devops: Varnish
Funding rounds
- Dec 2025Series D$150M
Founders & team
Investors
D1 Capital Partners, Fidelity, Durable Capital Partners, Ontario Teachers' Pension Plan, Origin Energy
Tech stack
Amazon Web ServicesApple Icloud MailBootstrapCloudflareCloudflare Bot ManagementCookiebot
#8
Funding Raised · Cardiff, Wales · founded 2017$37.7Mraised▾
Funding Raised · Cardiff, Wales · founded 2017
Provider of temporary housing for vulnerable adults and young people. This organization manages residential properties to offer interim accommodation for individuals requiring immediate shelter. Staff members oversee the maintenance and management of these facilities to ensure the availability of living spaces for those in need of housing.
Fliar Intelligence Index™ 55how this company ranks against its industry peers
Funding
top 35%Talent
bottom 49%Global
bottom 36%Funding: Raised $37.7M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) · Last round Conventional Debt (Apr 2026)
Talent: 1 named leader on record · 1 C-suite/founder profile curated
Global: Single-market focus (United Kingdom)
Audience (LinkedIn): 183 LinkedIn followers
Hiring (LinkedIn): 1 hiring post in 12 mo (public) · hiring: 2 bed flats
Activity (LinkedIn): 1 partnerships (incl. Wildich) announced in 12 mo
Funding rounds
- Apr 2026Conventional Debt$37.7M
Founders & team
Investors
OakNorth Bank
#9
Series B · London, England · founded 2022 · 33 employees$78Mraised▾
Series B · London, England · founded 2022 · 33 employees
Provider of cost-effective and sustainable electricity solutions. It provides users with a renewable energy company focused on accelerating the global transition to a greener energy landscape. The company is building a full-stack renewable energy business with cheaper tariffs, better service, and stronger environmental goals.
Fliar Intelligence Index™ 64how this company ranks against its industry peers
Growth
top 15%Funding
top 28%News
top 29%Talent
top 38%Innovation
top 39%Tech
top 43%Growth: Web rank 5,000,000 → 1,000,000 YoY · App-install growth +280% YoY · Fresh capital in last 24 mo
Funding: Raised $78.0M across 3 rounds · 3 rounds over 4 yrs (0.8/yr) · Last round Series B (Dec 2025)
News: 5 BI events in 12 mo (of 5 tracked, 1 types) · 5 high-value events (IPO/M&A/funding/contracts) in 12 mo · Top themes: Funding
Audience (LinkedIn): 215k LinkedIn followers — 21.0% of this cohort's audience
Hiring (LinkedIn): 2 hiring posts in 12 mo (public) · momentum +2
Funding rounds
- Dec 2025Series B$70M
- Jul 2025Series A$10M
- Sep 2022Seed$78M
Founders & team
Investors
BoxGroup, Ribbit Capital, Creandum, Balderton Capital, Lowercarbon Capital, Lakestar
Tech stack
Amazon CloudfrontAmazon S3Amazon Web ServicesAws Certificate ManagerCore-JsDatadog
#10
Series B · Plymouth, England · founded 2020 · 4 employees$12Mraised▾
Series B · Plymouth, England · founded 2020 · 4 employees
Developer of technology for recycling electric vehicle batteries into battery materials. The company’s technology transforms used batteries and gigafactory scrap into high-purity, battery-grade metal salts. These salts become precursor cathode active material and cathode active material essential for sustainable battery production. The company’s process recovers critical minerals and graphite for use in new anodes.
Fliar Intelligence Index™ 24how this company ranks against its industry peers
Talent
top 28%Funding
top 35%Moat
top 39%News
top 43%Growth
bottom 40%Global
bottom 39%Talent: 3 named leaders on record · 3 C-suite/founder profiles curated
Funding: Raised $12.0M across 7 rounds · 7 rounds over 3 yrs (2.3/yr) · Last round Grant (prize money) (Apr 2026)
Moat: Editorial + unicorn rating 7/10 · 9 curated direct competitors tracked
Audience (LinkedIn): 7k LinkedIn followers
Funding rounds
- Apr 2026Grant (prize money)$24.8M
- Mar 2025Series B$3.2M
- Dec 2024Series B$6.3M
- May 2024Grant (prize money)$808.2K
Founders & team
Investors
SQM Lithium, Marubeni, Mizuho Financial Group, Ukri, Gov, Advanced Propulsion Centre UK
#11
Seed · Southampton, England · founded 2022 · 6 employees$8.9Mraised▾
Seed · Southampton, England · founded 2022 · 6 employees
Standalone pathology laboratory center
Fliar Intelligence Index™ 40how this company ranks against its industry peers
News
top 24%Growth
top 25%Talent
top 33%Funding
top 47%Tech
bottom 48%Product
bottom 39%News: 10 BI events in 12 mo (of 26 tracked, 5 types) · +233% YoY · Top themes: Earnings, Leadership
Growth: Fresh capital in last 24 mo
Talent: 3 named leaders on record · 3 C-suite/founder profiles curated · 2 leadership moves in 12 mo
Audience (LinkedIn): 3k LinkedIn followers
Activity (LinkedIn): 1 partnerships · 2 awards (incl. iFAST Diagnostics) announced in 12 mo
Funding rounds
- Nov 2024Seed$6.4M
- Jan 2023Seed$2.4M
Founders & team
Investors
E Ink, Raw Ventures, OKG Capital, QantX, UK Innovation Science & Seed Fund, Kadmos Capital
Tech stack
AstraCloudflareCloudflare Bot ManagementCore-JsElementorGodaddy
#12
Series B · London, England · founded 2021 · 6 employees$16.9Mraised▾
Series B · London, England · founded 2021 · 6 employees
Provider of renewable electricity semiconductors manufacturing services. It operates a platform called renewable energy direct (RED), which connects businesses directly with UK-based renewable energy generators, bypassing traditional energy wholesalers and utilities. This approach eliminates middlemen and associated markups, resulting in lower costs for businesses and more revenue for renewable generators.
Fliar Intelligence Index™ 53how this company ranks against its industry peers
Talent
top 23%Growth
top 28%News
top 32%Funding
top 33%Tech
top 33%Partners
top 45%Talent: 6 named leaders on record · 5 C-suite/founder profiles curated
Growth: Web rank 50,000,000 → 10,000,000 YoY · Fresh capital in last 24 mo
News: 4 BI events in 12 mo (of 8 tracked, 3 types) · Top themes: Funding, Capital raise
Audience (LinkedIn): 13k LinkedIn followers
Hiring (LinkedIn): 1 hiring post in 12 mo (public) · hiring: marketing, data
Activity (LinkedIn): 1 product launches · 1 awards announced in 12 mo
Funding rounds
- Feb 2026Series B$75M
- May 2024Series A$13.7M
- Jun 2023Seed$3.1M
- Dec 2022Seed$3.2M
Founders & team
Investors
Atomicorp, AlbionVC, Revent, Lightspeed Venture Partners, Allianz, Atomico
Tech stack
Amazon SesAmazon Web ServicesApple Icloud MailBootstrapCloudflareCloudflare Bot Management
Funding & investor landscape
$15.3Btotal disclosed funding
640companies funded
1,848disclosed rounds
12rounds last 90 days
Most active investors
Gov71 rounds
Notable founders
Aj Lawrence
Co-Founder & Group CFO · Octopus Energy
Pete Miller
Co-Founder · Octopus Energy
David Craig
Co-CEO · Iceotope
Simon Jesenko
Co-CEO & CFO · Iceotope
Michael Phelan
Co-Founder & CEO · GridBeyond
Padraig Curran
Co-Founder & CTO · GridBeyond
Mehmet Katmer
CEO · Kinetics
Harvey Hodd
Founder & CEO · Rivan
Jennifer Schneider
CEO · Centauri Therapeutics
Matthew Potts
Co-Founder · Kraken
James Eddison
Co-Founder & CTO · Kraken
Duncan Evans
Chief Executive Officer · D2 PropCo
Prism market signals · United Kingdom · country-scoped Prism corpus, 613,062 docs
Market landscape — 10 sub-themes by coverage
Share of Sustainability Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
RESEARCH SIGNALS · United Kingdom
How research on Climate Adaptation is moving in the United Kingdom
A read on the academic research around Climate Adaptation — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 1,243 United Kingdom-affiliated papers.
research sentiment over time
200920182026
enthusiastic · positive · guarded tone
Tone is overwhelmingly optimistic and intensifying — the enthusiastic (strongly-positive) share moved 3% → 16% across 2009–2026.
top research entities
- University of Oxford96
- University of Leeds63
- London School of Economics and Political Science57
- University of Exeter54
- University College London46
leading researchers
Qiuhua Liang · Andrew J. Dougill · Robert L. Wilby · Colin R. Thorne · David Proverbs · Declan Conway · Ranger, Nicola · Philip Antwi‐Agyei
▲
Breakthroughs103 · 8%
▲ 2%→9% share
▲4.5× share momentum0 median citations85% since 2021mostly methods-led
Flood myth research is surging in UK breakthroughs — papers rose from 1 to 47, driving field-share from 2% to 9%.
rising sub-themes (early→recent)
- Flood myth1→47
- Climate change1→38
- Flooding (psychology)1→22
- Climate risk2→8
- Environmental planning1→6
Newly emergingResilience (materials science) 0→17 · Vulnerability (computing) 0→10 · Flood risk assessment 0→9
Landmark Hedging Climate Risk · 410 cites
◆
Advancements321 · 26%
▲ 24%→26% share
▲1.1× share momentum0 median citations77% since 2021mostly methods-led
Climate change advancement papers quadrupled from 12 to 105, anchoring a steadily growing 24–26% field share.
rising sub-themes (early→recent)
- Climate change12→105
- Flood myth20→103
- Resilience (materials science)4→45
- Flooding (psychology)10→48
- Climate risk2→29
Newly emergingHydrology (agriculture) 0→29 · Adaptation (eye) 0→14 · Preparedness 0→10
Landmark A high-resolution global flood hazard model · 635 cites
▼
Concerns643 · 52%
▼ 61%→50% share
▼0.8× share momentum0 median citations73% since 2021mostly empirical
Vulnerability (computing) concern papers nearly quadrupled from 20 to 79, signalling intensifying cyber-dimension risks in climate adaptation.
rising sub-themes (early→recent)
- Climate change53→312
- Resilience (materials science)17→121
- Psychological resilience16→77
- Vulnerability (computing)20→79
- Climate risk7→61
Newly emergingAction (physics) 0→15 · Global warming 0→13 · Ecosystem 0→12
Landmark Climate Finance · 743 cites
RESEARCH HOTSPOTS · United Kingdom
Where climate adaptation is researched across United Kingdom
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
London232 · +0.00
Oxford102 · +0.02
Edinburgh39 · +0.09
Manchester35 · +0.07
Bristol30 · +0.07
Birmingham27 · +0.24
Cambridge26 · +0.18
Glasgow25 · -0.06
PATENT SIGNAL · United Kingdom
Who's filing climate adaptation patents in the United Kingdom
United Kingdom climate adaptation patent filing is steady — 5 filings from 4 assignees (2017–2024), led by Clive Eales Johnson, Eugene J Kellett, Mohammed Rashid Iftkhar; annual filings 1→1.
5 filings4 assigneespeak 3/yr2017–2024
filing momentum (YoY 2017–2024)
top patent filers
- Clive Eales Johnson2
- Eugene J Kellett1
- Mohammed Rashid Iftkhar1
- Eales Johnson Clive1
Common questions
How many Sustainability Tech companies are there in United Kingdom?
Radar tracks 1976 indexable Sustainability Tech companies headquartered in United Kingdom that meet our profile-completeness bar.
What is the total funding raised by Sustainability Tech companies in United Kingdom?
The Sustainability Tech companies in United Kingdom on this list have raised a combined $15.3B in disclosed equity funding across 640 funded companies.
Which is the highest-funded Sustainability Tech company in United Kingdom?
Octopus Energy is the highest-funded Sustainability Tech company in United Kingdom, with $2B in disclosed equity funding.
How many Sustainability Tech companies in United Kingdom are funded?
640 of the 1976 Sustainability Tech companies in United Kingdom on this list have disclosed at least one equity funding round.
How many Sustainability Tech unicorns are there in United Kingdom?
4 Sustainability Tech companies in United Kingdom on this list are valued at $1B or more.
Who are the top investors in United Kingdom Sustainability Tech companies?
The most active investors in United Kingdom Sustainability Tech companies on this list include Europa, Gov, EIC Fund, Undaunted, Scottish Enterprise.
Riya SenguptaFinancials
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.