Radar · Sustainability Tech in England
Best Sustainability Tech Companies in England, United Kingdom
The 1596 best Sustainability Tech companies in England, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Octopus Energy.
By Riya SenguptaFinancials
1596companies tracked
$14.2Bdisclosed funding
4unicorns
622have raised
FLIAR INTELLIGENCE · SUSTAINABILITY TECH × ENGLAND
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
72%of audience held by top 3
13companies hiring publicly (12 mo)
Ranked: Best Sustainability Tech companies in England
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | 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 | 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%) · sector median +59% | 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 | 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 | 5 mo ago | Series B | 33 | Alan Chang Co-Founder & CEO | — | 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%) · sector median +59% | 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 | — | 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 | 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 |
| 14 | 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%) · sector median +59% | David Craig Co-CEO | 175 patents Liquid immersion cooling systems and components for high‑performance electronic thermal management | 1 award |
| 15 | Econic Technologies Developer of technology that transforms carbon dioxide into valuable raw materials 32Funding top 29%Moat top 37%Talent top 38%Tech bottom 45% All 10 signals ▾Fundingtop 29% Moattop 37% Talenttop 38% Techbottom 45% Growthbottom 44% Globalbottom 42% Marketbottom 41% Patentsbottom 34% Innovationbottom 28% Newsbottom 18% Funding: Raised $43.2M across 8 rounds · 8 rounds over 14 yrs (0.6/yr) Moat: Editorial + unicorn rating 7/10 · IP moat: 6 patents rank vs industry peers · Fliar Intelligence Index 32/100 | $43M | 20 mo ago | Series E | 31 31 → 53 (+71%) · sector median +59% | Charlotte Williams Co-Founder | 6 patents Design of advanced heterogeneous catalysts for polymerization and chemical synthesis | 1 launch · 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 | Beam Technology company that provides sustainable infrastructure solutions 74Growth top 21%Fin. health top 28%Funding top 31%Tech top 34% All 8 signals ▾Growthtop 21% Fin. healthtop 28% Fundingtop 31% Techtop 34% Talenttop 38% Marketbottom 46% Globalbottom 39% Moatbottom 38% Growth: Revenue +43% YoY · Fresh capital in last 24 mo Fin. health: Revenue ~$24.4M · Revenue +43% YoY rank vs industry peers · Fliar Intelligence Index 74/100 | $39M | 20 mo ago | Acquired | — | Joe Tidball Co-Founder | — | — |
| 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 | 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 | — | — |
| 20 | 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 | — | — |
| 21 | 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%) · sector median +59% | — | 70 patents Efficient water heating and heat‑pump energy buffering systems for residential/commercial use | 1 award |
| 22 | 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 |
| 23 | 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 | 3 mo ago | Series A | 14 | David Fairen-Jimenez Co-Founder & CSO | 21 patents Patents concentrated in transport & manufacturing processes | — |
| 24 | 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. | — |
| 25 | 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 |
| 26 | 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 | — | 1 job opening · 1 launch · 1 award |
| 27 | 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 | — | — | — |
| 28 | 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 | — | — |
| 29 | 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 | — | 1 job opening · 1 launch · 1 award |
| 30 | 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 patents Enzymatic and chemical recycling of polyolefin plastics | — |
| 31 | Evove Developer of advanced membrane technology for separation and filtration applications 53Innovation top 28%Patents top 28%Growth top 35%Talent top 38% All 9 signals ▾Innovationtop 28% Patentstop 28% Growthtop 35% Talenttop 38% Fundingtop 41% Moattop 45% Techbottom 49% Globalbottom 40% Marketbottom 30% Innovation: 42 patents (top 45% of patent-holders) · 42 filings since 2022 vs 0 in 2017-21 Patents: 42 patents matched (strict assignee match) · 42 filings since 2022 vs 0 in 2017-21 rank vs industry peers · Fliar Intelligence Index 53/100 | $9M | 13 mo ago | Series A | 24 24 → 32 (+33%) · sector median +59% | Craig Clement Co-Founder & CFO | 42 patents Membrane filtration hardware and monovalent ion separation technologies | 1 award |
| 32 | 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 | — | 1 partnership · 2 awards |
| 33 | 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%) · sector median +59% | 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 |
| 34 | 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 | — | 1 partnership · 1 award |
| 35 | 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 |
| 36 | Metrikus Provider of building analytical solutions 19Talent bottom 49%Funding bottom 46%News bottom 41%Global bottom 39% All 5 signals ▾Talentbottom 49% Fundingbottom 46% Newsbottom 41% Globalbottom 39% Marketbottom 35% Talent: 1 named leader on record · 1 C-suite/founder profile curated Funding: Raised $6.7M across 2 rounds · 2 rounds over 6 yrs (0.3/yr) rank vs industry peers · Fliar Intelligence Index 19/100 | $7M | 10 mo ago | Series A | 27 27 → 18 (-33%) · sector median +59% | Gary Cottle Co-Founder & CEO | — | — |
| 37 | 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 | — | 1 launch |
| 38 | 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. | — |
| 39 | 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%) · sector median +59% | Pete Jackson CEO | 60 patents Small-molecule antivirals and metallo‑beta‑lactamase inhibitors for infectious diseases | — |
| 40 | 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 |
| 41 | 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 | — | — |
| 42 | 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 | — | — |
| 43 | Seabound Provider of solutions to capture carbon emissions of ships 24Talent top 38%Funding top 42%Moat top 48%Partners bottom 43% All 6 signals ▾Talenttop 38% Fundingtop 42% Moattop 48% Partnersbottom 43% Globalbottom 39% Marketbottom 31% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Funding: Raised $4.7M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) rank vs industry peers · Fliar Intelligence Index 24/100 | $5M | 9 mo ago | Seed | 8 | Roujia Wen Co-Founder & CTO | — | — |
| 44 | Parallel Carbon Developer of affordable direct air carbon capture and clean hydrogen technologies 11Funding top 42%Talent bottom 49%Global bottom 39%Partners bottom 35% All 5 signals ▾Fundingtop 42% Talentbottom 49% Globalbottom 39% Partnersbottom 35% Marketbottom 20% Funding: Raised $3.6M across 3 rounds · 3 rounds over 3 yrs (1.0/yr) Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 11/100 | $4M | 8 mo ago | Series A | 2 | Ryan Anderson Co-Founder & CEO | — | 1 launch |
| 45 | 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 | — |
| 46 | 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 | — | — |
| 47 | 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 | — | — |
| 48 | LabCycle Developer of a circular economy for single-use plastic waste 9Funding top 45%Talent bottom 49%Global bottom 48%Patents bottom 43% All 6 signals ▾Fundingtop 45% Talentbottom 49% Globalbottom 48% Patentsbottom 43% Marketbottom 22% Innovationbottom 22% Funding: Raised $1.3M 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 9/100 | $1M | 4 mo ago | Seed | 5 | Colin Francis Co-Founder & CEO | 2 patents Decontamination systems for hazardous chemical and biological waste treatment | 1 job opening |
| 49 | Kinewell Energy Developer of the KLOC software 14Partners top 32%Tech top 44%Talent bottom 49%Funding bottom 45% All 8 signals ▾Partnerstop 32% Techtop 44% Talentbottom 49% Fundingbottom 45% Growthbottom 42% Globalbottom 32% Newsbottom 27% Marketbottom 15% Partners: 2 partnership announcements in 12 mo (2 in 24 mo) Tech: 31 technologies across 4/8 capability areas · Cloud: Cloudflare rank vs industry peers · Fliar Intelligence Index 14/100 | $1M | 3 mo ago | Seed | 1 | Andrew Jenkins Founder & CEO | — | 1 job opening · 1 award |
| 50 | Greenpixie Provider of solutions for carbon emissions management 14Funding top 47%Moat top 48%Talent bottom 49%Tech bottom 38% All 6 signals ▾Fundingtop 47% Moattop 48% Talentbottom 49% Techbottom 38% Globalbottom 37% Marketbottom 24% Funding: Raised $301k across 3 rounds · 3 rounds over 4 yrs (0.8/yr) Moat: Editorial + unicorn rating 5/10 · 10 curated direct competitors tracked rank vs industry peers · Fliar Intelligence Index 14/100 | $301K | 1 mo ago | Seed | 9 | William Tinney Co-Founder | — | — |
Top 12 Sustainability Tech companies in England
#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 — 46.5% 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
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 — 21.2% 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
#9
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
#10
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
#11
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
#12
Series A · London, England · founded 2019 · 25 employees$11Mraised▾
Series A · London, England · founded 2019 · 25 employees
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Fliar Intelligence Index™ 37how this company ranks against its industry peers
Funding
top 34%Growth
top 38%Patents
top 45%News
bottom 49%Talent
bottom 49%Moat
bottom 47%Funding: Raised $11.0M across 4 rounds · 4 rounds over 4 yrs (1.0/yr) · Last round Series A (Mar 2026)
Growth: Fresh capital in last 24 mo
Patents: 3 patents matched (strict assignee match) · 3 filings since 2022 vs 0 in 2017-21 · Latest publication 2025
Audience (LinkedIn): 9k LinkedIn followers
Funding rounds
- Mar 2026Series A$12M
- Mar 2025Grant (prize money)$1M
- Mar 2025Series A$18.3M
- Jun 2022Seed$11M
Founders & team
Investors
Lowercarbon Capital, Amadeus Capital, Zero Carbon Capital, Voyagers, TVC Capital, BoxGroup
Tech stack
CloudflareCloudflare Bot ManagementGoogle WorkspaceHstsHttp/3Jquery
Funding & investor landscape
$14.2Btotal disclosed funding
551companies funded
1,581disclosed rounds
11rounds last 90 days
Most active investors
Gov59 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
Alan Chang
Co-Founder & CEO · Fuse Energy
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 FROM England · institutions
What England researches in climate adaptation
University of the West of England, Historic England, and the Bank of England lead England's climate-adaptation research, focusing predominantly on flood risk and disaster resilience, with a contested, concern-dominated tone.
19 papersstance -0.106% breakthrough78% concern
local research themes
Flood Risk Assessment and ManagementDisaster Management and ResilienceClimate Change, Adaptation, MigrationHousing Market and EconomicsUrban Green Space and HealthParticipatory Visual Research Methods
top institutions
- University of the West of England10
- Historic England3
- Bank of England2
- Forestry Commission England2
- NHS England1
Common questions
How many Sustainability Tech companies are there in England, United Kingdom?
Radar tracks 1596 indexable Sustainability Tech companies headquartered in England, United Kingdom that meet our profile-completeness bar.
What is the total funding raised by Sustainability Tech companies in England, United Kingdom?
The Sustainability Tech companies in England, United Kingdom on this list have raised a combined $14.2B in disclosed equity funding across 551 funded companies.
Which is the highest-funded Sustainability Tech company in England, United Kingdom?
Octopus Energy is the highest-funded Sustainability Tech company in England, United Kingdom, with $2B in disclosed equity funding.
How many Sustainability Tech companies in England, United Kingdom are funded?
551 of the 1596 Sustainability Tech companies in England, United Kingdom on this list have disclosed at least one equity funding round.
How many Sustainability Tech unicorns are there in England, United Kingdom?
4 Sustainability Tech companies in England, United Kingdom on this list are valued at $1B or more.
Who are the top investors in England, United Kingdom Sustainability Tech companies?
The most active investors in England, United Kingdom Sustainability Tech companies on this list include Europa, Gov, Undaunted, EIC Fund, Mercia.
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.