Radar · Solar Energy in United Kingdom
Best Solar Energy Companies in United Kingdom
The 521 best Solar Energy companies in United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Hero Future Energies.
By Riya SenguptaFinancials
521companies tracked
$2Bdisclosed funding
1unicorns
98have raised
Tracking the best-funded Solar Energy companies in the United Kingdom, this directory covers 521 ventures and $2.0 billion in total disclosed equity across the sector. That's real capital, not projections. Hero Future Energies leads the field at $725M raised, a figure that dwarfs the next tier: Ferroglobe at $484M, then Renewco Power at $72M. So when you're sizing up the competitive field, the funding gap at the top is steep. The global solar market sat at roughly $222.1B in 2024 and is forecast to reach $223.3B by 2026, compounding at 20.5% CAGR, driven by decarbonization mandates and government policy tailwinds that UK operators know well.
Momentum is real and measurable. Energy app installs are growing at a median of +28% year-on-year across 138 tracked applications, a signal that demand is moving fast through digital channels too. Coverage of solar PV and EV energy management systems is rising, and the directory's one unicorn confirms the sector has already produced breakout scale. Investors like Actis and Barclays are active here, which tells me institutional money has moved well past the early-adopter phase. Series A rounds in solar are closing globally, and the UK cohort is competing for that same capital.
Sources & further reading
- MarketsandMarkets
FLIAR INTELLIGENCE · SOLAR ENERGY × UNITED KINGDOM
Our analysis of 100 Solar Energy companies
$30.5b in tracked funding; 83% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
100companies analysed
83%cloud-native stacks
2025funding peak (by rounds)
2unicorns
2013median founding year
302kcombined LinkedIn audience
59%of audience held by top 3
2companies hiring publicly (12 mo)
Ranked: Best Solar Energy companies in United Kingdom
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Hero Future Energies 🦄 Company focused on solar, wind, energy storage, and green hydrogen solutions 67Moat top 18%Innovation top 20%Product top 21%Funding top 22% All 11 signals ▾Moattop 18% Innovationtop 20% Producttop 21% Fundingtop 22% Talenttop 28% Fin. healthtop 44% Markettop 45% Growthbottom 47% Techbottom 42% Globalbottom 39% Newsbottom 30% Moat: Top 3% by revenue among 253 tracked Wind Energy companies · Editorial + unicorn rating 8/10 Innovation: 12 product lines rank vs industry peers · Fliar Intelligence Index 67/100 | $725M | 8 mo ago | 20 | 2012 | Geetika Agarwal CEO | PHPSalesforceLaravel+14 | — | 2 expansions |
| 2 | Ferroglobe Producer of silicon metal and alloys 64Funding top 22%Product top 28%Market top 33%News top 33% All 8 signals ▾Fundingtop 22% Producttop 28% Markettop 33% Newstop 33% Fin. healthtop 43% Techbottom 49% Growthbottom 40% Globalbottom 37% Funding: Raised $484M across 8 rounds · 8 rounds over 11 yrs (0.7/yr) Product: 1 published app (48 installs) · Company stage: Public rank vs industry peers · Fliar Intelligence Index 64/100 | $484M | 25 mo ago | 3,173 | 2015 | — | DrupalPHPTradingView+22 | — | — |
| 3 | Bboxx Provider of pay-as-you-go power and technology to homes and businesses 57Tech top 23%Funding top 32%Product top 36%Moat top 39% All 11 signals ▾Techtop 23% Fundingtop 32% Producttop 36% Moattop 39% Growthtop 44% Markettop 46% Innovationtop 47% Patentstop 47% Globalbottom 49% Fin. healthbottom 36% Newsbottom 28% Tech: 50 technologies across 6/8 capability areas · Cloud: Amazon Cloudfront, Amazon S3 Funding: Raised $131M across 17 rounds · 17 rounds over 13 yrs (1.3/yr) rank vs industry peers · Fliar Intelligence Index 57/100 | $131M | 42 mo ago | 793 793 → 1,090 (+37%) | 2010 | — | WordPressMySQLPHP+24 | 12 patents Battery health monitoring and smart utility metering for off‑grid energy systems | — |
| 4 | Lekela Power Independent power producer in solar and wind 24Funding top 39%Talent bottom 49%Market bottom 40%Global bottom 37% All 6 signals ▾Fundingtop 39% Talentbottom 49% Marketbottom 40% Globalbottom 37% Newsbottom 32% Techbottom 29% Funding: Raised $118M across 2 rounds · 2 rounds over 11 yrs (0.2/yr) Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 24/100 | $118M | 116 mo ago | 22 | 2015 | Chris Antonopoulos Chief Executive Officer | — | — | — |
| 5 | Elgin Developer of solar renewable energy power projects 32Talent top 28%Growth top 37%News top 40%Funding top 47% All 9 signals ▾Talenttop 28% Growthtop 37% Newstop 40% Fundingtop 47% Techbottom 42% Globalbottom 37% Partnersbottom 32% Marketbottom 26% Fin. healthbottom 18% Talent: 3 named leaders on record · 3 C-suite/founder profiles curated Growth: 1 acquisition/expansion move in 24 mo · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 32/100 | $78M | 22 mo ago | — | 2009 | Carlos Javier Co-Founder | Webflow EcommerceWebflowApple iCloud Mail+10 | — | — |
| 6 | Renewco Power Developer of solar and wind energy projects 40Funding top 38%Talent top 38%Growth top 45%Tech bottom 49% All 7 signals ▾Fundingtop 38% Talenttop 38% Growthtop 45% Techbottom 49% Newsbottom 43% Globalbottom 29% Marketbottom 27% Funding: Raised $71.6M across 2 rounds · 2 rounds over 5 yrs (0.4/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 40/100 | $72M | 5 mo ago | 22 | 2021 | Frans van den Heuvel Co-Founder | Windows ServerMicrosoft ASP.NETReact+15 | — | — |
| 7 | Xlinks Independent solar power producer on a utility scale 21Funding top 45%Tech top 46%Talent bottom 49%Moat bottom 38% All 8 signals ▾Fundingtop 45% Techtop 46% Talentbottom 49% Moatbottom 38% Globalbottom 37% Growthbottom 35% Newsbottom 32% Marketbottom 19% Funding: Raised $62.6M across 2 rounds · 2 rounds over 3 yrs (0.7/yr) Tech: 28 technologies across 3/8 capability areas · Cloud: Cloudflare rank vs industry peers · Fliar Intelligence Index 21/100 | $63M | 30 mo ago | 2 | 2019 | Simon Morrish Founder & CEO | WordPressMySQLPHP+24 | — | 1 job opening |
| 8 | Trigen Developer of solar and wind energy projects | $42M | 248 mo ago | — | 1992 | — | — | 45 patents Boron‑based anticoagulant drugs targeting thrombin for surgical thrombosis prevention | — |
| 9 | Naked Energy Provider of heat decarbonization solutions 42Moat top 32%Growth top 35%Tech top 40%Patents top 40% All 9 signals ▾Moattop 32% Growthtop 35% Techtop 40% Patentstop 40% Fundingtop 41% Innovationtop 50% Globalbottom 42% Marketbottom 30% Newsbottom 18% Moat: Editorial + unicorn rating 7/10 · IP moat: 45 patents Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 42/100 | $42M | 23 mo ago | 15 | 2009 | — | Cart FunctionalitySquarespace CommerceSquarespace+20 | 45 patents Sealed vessels and heat exchangers for solar‑thermal power and high‑temperature process systems | 1 award |
| 10 | Solarcentury EPC player in the domain of solar energy 24Innovation top 20%Product top 26%Funding top 43%Market bottom 49% All 9 signals ▾Innovationtop 20% Producttop 26% Fundingtop 43% Marketbottom 49% Globalbottom 39% Techbottom 32% Newsbottom 32% Fin. healthbottom 24% Growthbottom 9% Innovation: 5 product lines Product: 5 distinct product lines · Company stage: Acquired rank vs industry peers · Fliar Intelligence Index 24/100 | $38M | 69 mo ago | 121 | 1998 | — | — | — | — |
| 11 | Azura Power Developer, owner and operator of solar and open-cycle power plants | $30M | 139 mo ago | — | 2008 | David Ladipo Co-Founder | WordPressMySQLPHP+16 | — | — |
| 12 | Azuri Manufacturer of solar powered products | $26M | 84 mo ago | 163 | 2012 | Simon Garth CEO | Cart FunctionalitySquarespace CommerceSquarespace+13 | — | — |
| 13 | Ryse Energy Provider of solar panel, products, and wind energy tower installation services | $15M | 38 mo ago | 14 | 2019 | — | WordPressMySQLPHP+32 | — | — |
| 14 | Chariot Developer of solar and wind energy projects 60Growth top 35%Funding top 41%Market top 42%Tech bottom 42% All 6 signals ▾Growthtop 35% Fundingtop 41% Markettop 42% Techbottom 42% Newsbottom 36% Globalbottom 25% Growth: Fresh capital in last 24 mo Funding: Raised $14.5M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 60/100 | $14M | 12 mo ago | 4,228 | 2021 | — | WordPressMySQLPHP+14 | — | — |
| 15 | P3P Partners Combined heat and power project developers | $14M | 88 mo ago | 15 15 → 23 (+53%) | 2011 | — | WordPressMySQLPHP+16 | — | — |
| 16 | Absolute Energy Capital Provider of advisory, legal and financial services | $11M | 155 mo ago | 1 | 2009 | — | — | — | — |
| 17 | Empower Energies Solar EPC company | $8M | 167 mo ago | 66 | 2010 | — | — | — | — |
| 18 | Custom Solar Solar panel & products installation company | $6M | 54 mo ago | 48 | 2010 | Gary Sucharewycz Chief Executive Officer | WordPress Site EditorWordPressMySQL+21 | — | — |
| 19 | Innova Developer of renewable energy solutions, assisting businesses with sustainable power | $6M | 38 mo ago | — | 2015 | Robin Dummett Co-Founder & Director | WordPressApple iCloud MailMicrosoft 365+17 | — | 1 award |
| 20 | Buffalo Grid Mobile charging infrastructure for rural areas | $6M | 67 mo ago | 8 | 2011 | — | — | — | — |
| 21 | Burnham and Weston Energy Developer and operator of utility scale solar projects | $5M | 95 mo ago | — | 2016 | — | — | — | — |
| 22 | Dynamis Associates Developer of solar and wind energy projects | $5M | 51 mo ago | 21 | 2017 | — | — | — | — |
| 23 | Whitfield Solar Developer of low-cost solar concentrators | $4M | 198 mo ago | — | 2004 | George Whitfield Co-Founder | — | 2 patents Design and optimization of concentrating solar thermal collectors for power generation. | — |
| 24 | Steelmin Manufacturer of silicon metal and ferrosilicon | $4M | 104 mo ago | — | 2011 | Chris Mcnamee Co-Founder | — | — | — |
| 25 | Push Energy Develops solar farms and offers EPC services | $4M | 129 mo ago | 7 | 2013 | Stuart Bradshaw CEO | — | — | — |
| 26 | Energy Saving Trust Provider of energy-saving advice and data. It offers guidance on reducing energy consumption and carbon… | $4M | 69 mo ago | 337 | 2000 | — | WordPressBugHerdMySQL+22 | — | — |
| 27 | Prolectric Manufacturer of solar lighting systems and provider of wind power systems | $4M | 65 mo ago | 41 | 1985 | — | WordPressPleskMySQL+30 | 9 patents Off-grid power system management and load balancing for renewable microgrid assemblies | 1 partnership · 1 award |
| 28 | Sunstone Systems Off-grid surveillance & communication technology solutions, provider | $4M | 34 mo ago | 12 12 → 15 (+25%) | 2011 | Simon Legrand Co-Founder | — | — | 1 launch · 1 partnership |
| 29 | GridEdge Solutions Provider of AI-powered software for optimising energy consumption in buildings | $4M | 98 mo ago | — | 2016 | Dan Wright Co-Founder | — | — | — |
| 30 | Aberla Provider of energy infrastructure related services | $3M | 97 mo ago | 3 | 2015 | Paul McCarren CEO & MD | — | — | — |
| 31 | PulsiV technology Developer of power electronics products | $3M | 43 mo ago | 6 | 2013 | Darrel Kingham CEO | — | 41 patents Patents concentrated in electrical & electronics | — |
| 32 | Centrica Business Solutions Provider of integrated solutions for smart grid systems and energy-efficient solutions | $2M | 65 mo ago | 232 | 2018 | — | DrupalPHPThree.js+26 | — | — |
| 33 | Cambridge Photon Provider of a photon multiplier film to photovoltaic module manufacturers for increasing the efficiency of… 55Funding top 44%Global bottom 45% All 2 signals ▾Fundingtop 44% Globalbottom 45% Funding: Raised $2.0M across 2 rounds · 2 rounds over 1 yrs (2.0/yr) Global: Investors from 2 countries beyond United Kingdom rank vs industry peers · Fliar Intelligence Index 55/100 | $2M | 7 mo ago | 11 | 2019 | — | — | — | — |
| 34 | OptoGlo Provider of sign featuring solar-powered illumination | $2M | 30 mo ago | 25 | 2014 | Kevin Donahue CEO | — | — | — |
| 35 | Senergy Developer of solar energy projects 42Funding top 48%Global top 48%Patents bottom 49%Talent bottom 45% All 6 signals ▾Fundingtop 48% Globaltop 48% Patentsbottom 49% Talentbottom 45% Innovationbottom 44% Productbottom 40% Funding: Raised $1.7M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Global: Investors from 2 countries beyond United Kingdom rank vs industry peers · Fliar Intelligence Index 42/100 | $2M | 3 mo ago | 9 | 2013 | Christine Boyle Founder & CEO | — | 19 patents Coal-bed methane drilling, production optimization, and well performance simulation technologies. | — |
| 36 | Glowb Company dedicated to simplifying the adoption of residential solar energy | $2M | 35 mo ago | 2 | 2022 | — | — | — | — |
| 37 | AceOn Group Manufacturer of custom battery packs and energy storage systems solutions | $1M | 36 mo ago | 30 | 2010 | Mark Thompson CEO & MD | WordPressMySQLPHP+22 | — | — |
| 38 | 3ti Provider of solar panel installation services | $1M | 47 mo ago | 4 | 2019 | — | WordPressApple iCloud MailMicrosoft 365+34 | — | — |
| 39 | GraphEnergyTech Developer of graphene-based electrodes for solar cells, replacing precious metals 21Talent bottom 49%Funding bottom 44%Market bottom 37%Global bottom 37% All 4 signals ▾Talentbottom 49% Fundingbottom 44% Marketbottom 37% Globalbottom 37% Talent: 1 named leader on record · 1 C-suite/founder profile curated Funding: Raised $1.3M across 1 rounds · 1 rounds over 2 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 21/100 | $1M | 22 mo ago | — | 2022 | Thomas Baumeler Co-Founder & CEO | — | — | — |
| 40 | Electron Green Provider of solar energy services for residential & commercial | $1M | 28 mo ago | 36 | 2010 | — | WordPressMySQLPHP+27 | — | — |
| 41 | Furlong Energy Developer of solar and wind energy projects | $890K | 34 mo ago | — | 2022 | Ramin Dilmaghanian Founder | — | — | — |
| 42 | Zhyphen Manufacturer of energy storage systems for grid and renewable applications | $798K | 56 mo ago | 7 | 2018 | — | — | — | — |
| 43 | Dulas Manufacturer of renewable energy systems and medical refrigeration equipment | $730K | 46 mo ago | 67 | 1982 | — | WordPressMySQLPHP+25 | — | 3 launchs · 1 partnership |
| 44 | Boxergy Solar panel & products installation company | $528K | 27 mo ago | 5 | 2017 | Andrew Aldridge Co-Founder | — | 3 patents Residential heat pump systems with advanced heat exchange and control methods | — |
| 45 | Space Solar Developer of space-based solar power technology for clean energy generation 29Growth top 35%Talent top 38%Tech bottom 46%Funding bottom 37% All 6 signals ▾Growthtop 35% Talenttop 38% Techbottom 46% Fundingbottom 37% Globalbottom 30% Marketbottom 25% Growth: Fresh capital in last 24 mo Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 29/100 | $508K | 24 mo ago | — | 2022 | Sam Adlen Co-Founder & Co-CEO | WordPressMySQLPHP+14 | — | 3 job openings · 2 partnerships |
| 46 | Renbee Platform connecting homeowners with installers for home decarbonisation projects | $411K | 22 mo ago | — | 2023 | Andrei Co-Founder | — | — | — |
| 47 | Sinewave Provider of solar operation & maintenance service 19Tech top 50%Growth bottom 44%Fin. health bottom 44%Funding bottom 37% All 6 signals ▾Techtop 50% Growthbottom 44% Fin. healthbottom 44% Fundingbottom 37% Globalbottom 30% Marketbottom 21% Tech: 21 technologies across 3/8 capability areas · Security: Hsts Growth: Headcount 40 → 32 (-20%) across vintages · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 19/100 | $400K | 9 mo ago | 32 | 2008 | — | Cart FunctionalitySquarespace CommerceSquarespace+18 | — | 2 partnerships · 1 expansion |
| 48 | ARC Power Developer of solar energy projects 13Talent top 38%Funding top 49%Global bottom 37%Tech bottom 31% All 5 signals ▾Talenttop 38% Fundingtop 49% Globalbottom 37% Techbottom 31% Marketbottom 16% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Funding: Raised $369k across 5 rounds · 5 rounds over 6 yrs (0.8/yr) rank vs industry peers · Fliar Intelligence Index 13/100 | $369K | 15 mo ago | 5 | 2016 | Oliver Blakeman Co-Founder & CTO | PythonFedoraYouTube+11 | — | 1 partnership |
| 49 | SolarisKit Manufacturer of solar thermal kit for homes and industries | $188K | 33 mo ago | 3 | 2019 | Faisal Ghani Founder & CEO | WordPressMySQLPHP+16 | 3 patents Solar thermal energy collection and hot water heating system technologies | 1 launch |
| 50 | Aventus Eco Provider of renewable energy solutions installer with a focus on heat pumps and battery storage systems | $128K | 24 mo ago | — | 2024 | Ed Broussard Founder | WordPressMySQLPHP+19 | — | — |
Top 12 Solar Energy companies in United Kingdom
#1
Series D · London, England · founded 2012 · 20 employees$725Mraised▾
Series D · London, England · founded 2012 · 20 employees
Company focused on solar, wind, energy storage, and green hydrogen solutions. The company develops and implements utility-scale and commercial & industrial renewable energy projects. Its include wind and solar power generation, energy storage solutions, and green hydrogen production. The company also focuses on corporate social responsibility initiatives in communities surrounding its projects. Its aim to create a positive environmental and social impact while providing clean energy.
Fliar Intelligence Index™ 67how this company ranks against its industry peers
Moat
top 18%Innovation
top 20%Product
top 21%Funding
top 22%Talent
top 28%Fin. health
top 44%Moat: Top 3% by revenue among 253 tracked Wind Energy companies · Editorial + unicorn rating 8/10 · Unicorn
Innovation: 12 product lines
Product: 12 distinct product lines · Company stage: Series D
Audience (LinkedIn): 103k LinkedIn followers — 34.2% of this cohort's audience
Activity (LinkedIn): 2 expansions announced in 12 mo
Funding rounds
- Oct 2025Conventional Debt$215M
- Sep 2022Series D$450M
- Oct 2019Series D$150M
- Jan 2017Series D$125M
Founders & team
Investors
Masdar, KKR, Hero, IFC Asset Management Company, State Bank of India, Canara Bank
Tech stack
BootstrapBootstrap IconsCdnjsCloudflareFont AwesomeGodaddy
#2
Series D · Edinburgh, Scotland · founded 2021 · 22 employees$71.6Mraised▾
Series D · Edinburgh, Scotland · founded 2021 · 22 employees
Developer of solar and wind energy projects
Fliar Intelligence Index™ 40how this company ranks against its industry peers
Funding
top 38%Talent
top 38%Growth
top 45%Tech
bottom 49%News
bottom 43%Global
bottom 29%Funding: Raised $71.6M across 2 rounds · 2 rounds over 5 yrs (0.4/yr) · Last round Series D (Dec 2025)
Talent: 2 named leaders on record · 2 C-suite/founder profiles curated
Growth: Web rank 10,000,000 → 50,000,000 YoY · Fresh capital in last 24 mo
Audience (LinkedIn): 5k LinkedIn followers
Funding rounds
- Dec 2025Series D$38.8M
- Sep 2021Series C$32.8M
Founders & team
Investors
Corran Capital, The Scottish National Investment Bank, SSE
Tech stack
AzureHstsIisJqueryLazysizesMicrosoft 365
#3
Seed · Belfast, Northern Ireland · founded 2013 · 9 employees$1.7Mraised▾
Seed · Belfast, Northern Ireland · founded 2013 · 9 employees
Developer of solar thermal panels designed to deliver affordable solar heating. The company's panels are more efficient than photo voltaic (PV), collect the sun's energy through heat rather than electricity, enabling customers to help in heating or cooling their buildings.
Fliar Intelligence Index™ 42how this company ranks against its industry peers
Funding
top 48%Global
top 48%Patents
bottom 49%Talent
bottom 45%Innovation
bottom 44%Product
bottom 40%Funding: Raised $1.7M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) · Last round Seed (Feb 2026)
Global: Investors from 2 countries beyond United Kingdom
Patents: 19 patents matched (strict assignee match) · Latest publication 2016 · 3 distinct CPC technology classes
Audience (LinkedIn): 2k LinkedIn followers
Funding rounds
- Feb 2026Seed$1.7M
Founders & team
Investors
Clarendon Fund Managers, ClimateLaunchpad, Urban Future Lab
#4
Public · London, England · founded 2015 · 3173 employees$484.2Mraised▾
Public · London, England · founded 2015 · 3173 employees
Producer of silicon metal and alloys
Fliar Intelligence Index™ 64how this company ranks against its industry peers
Funding
top 22%Product
top 28%Market
top 33%News
top 33%Fin. health
top 43%Tech
bottom 49%Funding: Raised $484M across 8 rounds · 8 rounds over 11 yrs (0.7/yr) · Last round Grant (prize money) (Apr 2024)
Product: 1 published app (48 installs) · Company stage: Public
Market: 3,173 employees (top 7% of Energy) · Revenue ~$1.7B · Top-5,000,000 web property
Audience (LinkedIn): 13k LinkedIn followers — 4.2% of this cohort's audience
Funding rounds
- Apr 2024Grant (prize money)$7.6M
- Apr 2024Grant (prize money)$64.5M
- May 2023Grant (prize money)$7.8M
- Apr 2023Grant (prize money)$3.5M
Investors
Europa, PNC, Economy And Finance, Finacity
Tech stack
Acquia Cloud PlatformAcquia Cloud Site FactoryAdobe AnalyticsAdobe Experience Platform Identity ServiceAdobe Experience Platform LaunchAkamai
#5
Public · London, England · founded 2021 · 4228 employees$14.5Mraised▾
Public · London, England · founded 2021 · 4228 employees
Developer of solar and wind energy projects
Fliar Intelligence Index™ 60how this company ranks against its industry peers
Growth
top 35%Funding
top 41%Market
top 42%Tech
bottom 42%News
bottom 36%Global
bottom 25%Growth: Fresh capital in last 24 mo
Funding: Raised $14.5M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) · Last round Post IPO (May 2025)
Market: 4,228 employees (top 5% of Energy) · Top-10,000,000 web property
Audience (LinkedIn): 9k LinkedIn followers — 3.1% of this cohort's audience
Funding rounds
- May 2025Post IPO$5.5M
- 2024Post IPO$9M
Tech stack
AosAzureCloudflareCloudflare Bot ManagementDownload MonitorHsts
#6
Seed · Cambridge, England · founded 2019 · 11 employees$2Mraised▾
Seed · Cambridge, England · founded 2019 · 11 employees
Provider of a photon multiplier film to photovoltaic module manufacturers for increasing the efficiency of solar panels
Fliar Intelligence Index™ 55how this company ranks against its industry peers
Funding
top 44%Global
bottom 45%Funding: Raised $2.0M across 2 rounds · 2 rounds over 1 yrs (2.0/yr) · Last round Seed (Nov 2025)
Global: Investors from 2 countries beyond United Kingdom
Audience (LinkedIn): 634 LinkedIn followers
Funding rounds
- Nov 2025Grant (prize money)$821.1K
- Nov 2025Seed$1.2M
Investors
Cambridge Enterprise, Spectrum Impact, Tybourne Capital Management, Providence Investments, Parkwalk
#7
Acquired · London, England · founded 2009$77.9Mraised▾
Acquired · London, England · founded 2009
Developer of solar renewable energy power projects
Fliar Intelligence Index™ 32how this company ranks against its industry peers
Talent
top 28%Growth
top 37%News
top 40%Funding
top 47%Tech
bottom 42%Global
bottom 37%Talent: 3 named leaders on record · 3 C-suite/founder profiles curated
Growth: 1 acquisition/expansion move in 24 mo · Fresh capital in last 24 mo
News: 3 BI events in 12 mo (of 5 tracked, 4 types) · +200% YoY · Top themes: Funding, Hiring, Contracts
Audience (LinkedIn): 20k LinkedIn followers — 6.5% of this cohort's audience
Funding rounds
- Jul 2024Conventional Debt$77.9M
Founders & team
Investors
BBVA
Tech stack
Apple Icloud MailCloudflareGoogle AnalyticsGoogle Tag ManagerHstsHttp/3
#8
Series B · Crawley, England · founded 2009 · 15 employees$41.9Mraised▾
Series B · Crawley, England · founded 2009 · 15 employees
Provider of heat decarbonization solutions. It has developed a solution named Vvitru which is a hybrid solar collector that combines solar photovoltaics PV and solar thermal technology. The solution generates electricity and heat.
Fliar Intelligence Index™ 42how this company ranks against its industry peers
Moat
top 32%Growth
top 35%Tech
top 40%Patents
top 40%Funding
top 41%Innovation
top 50%Moat: Editorial + unicorn rating 7/10 · IP moat: 45 patents · 10 curated direct competitors tracked
Growth: Fresh capital in last 24 mo
Tech: 34 technologies across 4/8 capability areas · Cloud: Amazon S3, Amazon Web Services · Security: Cloudflare Bot Management, Hsts
Audience (LinkedIn): 9k LinkedIn followers — 3.0% of this cohort's audience
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
- Jul 2024Series B$22.1M
- Dec 2022Series B$1.2M
- Jul 2022Series B$11.8M
- Nov 2019Series A$6.8M
Investors
Barclays, ELM Compliance, Big Sky Partners, E.ON, Earthworm, EthicalFin
Tech stack
CloudflareCookiebotGoogle AnalyticsGoogle Font ApiGoogle Hosted LibrariesHsts
#9
Seed · Swindon, England · founded 2008 · 32 employees$400Kraised▾
Seed · Swindon, England · founded 2008 · 32 employees
Provider of solar operation & maintenance service
Fliar Intelligence Index™ 19how this company ranks against its industry peers
Tech
top 50%Growth
bottom 44%Fin. health
bottom 44%Funding
bottom 37%Global
bottom 30%Market
bottom 21%Tech: 21 technologies across 3/8 capability areas · Security: Hsts
Growth: Headcount 40 → 32 (-20%) across vintages · Fresh capital in last 24 mo
Fin. health: Revenue ~$161k (FY2025) · Net margin 1996.3%
Audience (LinkedIn): 11k LinkedIn followers — 3.6% of this cohort's audience
Activity (LinkedIn): 2 partnerships · 1 expansions (incl. Fastned) announced in 12 mo
Funding rounds
- Aug 2025Seed—
- Dec 2022Seed$200K
- Nov 2022Seed$200K
Investors
Three Hills
Tech stack
AngularApple Icloud MailCart FunctionalityCore-JsGodaddyGoogle Analytics
#10
Series C · Billericay, England · founded 2019 · 2 employees$62.6Mraised▾
Series C · Billericay, England · founded 2019 · 2 employees
Independent solar power producer on a utility scale
Fliar Intelligence Index™ 21how this company ranks against its industry peers
Funding
top 45%Tech
top 46%Talent
bottom 49%Moat
bottom 38%Global
bottom 37%Growth
bottom 35%Funding: Raised $62.6M across 2 rounds · 2 rounds over 3 yrs (0.7/yr) · Last round Series C (Nov 2023)
Tech: 28 technologies across 3/8 capability areas · Cloud: Cloudflare · Security: Cloudflare Bot Management, Hsts
Talent: 1 named leader on record · 1 C-suite/founder profile curated
Audience (LinkedIn): 19k LinkedIn followers — 6.2% of this cohort's audience
Hiring (LinkedIn): 1 hiring post in 12 mo (public) · hiring: Corporate Affairs Specialist
Funding rounds
- Nov 2023Series C$25.3M
- Apr 2023Series C$37.3M
Founders & team
Investors
TotalEnergies, TAQA, Octopus Energy
Tech stack
CloudflareCloudflare Bot ManagementContact Form 7Core-JsDocusignGodaddy
#11
Series D · London, England · founded 2010 · 793 employees$130.7Mraised▾
Series D · London, England · founded 2010 · 793 employees
Provider of pay-as-you-go power and technology to homes and businesses. They offer clean energy, clean cooking solutions, smartphones, and e-mobility products. The company utilizes a fully integrated operating system to deploy products. It connects individuals and businesses with affordable access to transformative services.
Fliar Intelligence Index™ 57how this company ranks against its industry peers
Tech
top 23%Funding
top 32%Product
top 36%Moat
top 39%Growth
top 44%Market
top 46%Tech: 50 technologies across 6/8 capability areas · Cloud: Amazon Cloudfront, Amazon S3 · Devops: Nginx
Funding: Raised $131M across 17 rounds · 17 rounds over 13 yrs (1.3/yr) · Last round Conventional Debt (Dec 2022)
Product: 1 published app (30.0k installs) · Company stage: Series D
Audience (LinkedIn): 55k LinkedIn followers — 18.1% of this cohort's audience
Activity (LinkedIn): 2 partnerships (incl. Orange) announced in 12 mo
Funding rounds
- Dec 2022Conventional Debt$11.5M
- May 2022Series D$15M
- May 2022Conventional Debt$8M
- Nov 2020Conventional Debt$4M
Investors
Mitsubishi Corporation, MacKinnon, Bennett & Company, Bamboo Capital Partners, ENGIE Rassembleurs d'Energies, DOEN Foundation, KawiSafi
Tech stack
Amazon CloudfrontAmazon S3Amazon Web ServicesAngularAosChimpmatic
#12
Seed · London, England · founded 2016 · 5 employees$368.8Kraised▾
Seed · London, England · founded 2016 · 5 employees
Developer of solar energy projects
Fliar Intelligence Index™ 13how this company ranks against its industry peers
Talent
top 38%Funding
top 49%Global
bottom 37%Tech
bottom 31%Market
bottom 16%Talent: 2 named leaders on record · 2 C-suite/founder profiles curated
Funding: Raised $369k across 5 rounds · 5 rounds over 6 yrs (0.8/yr) · Last round Seed (Mar 2025)
Global: Investors from 2 countries beyond United Kingdom
Audience (LinkedIn): 5k LinkedIn followers
Activity (LinkedIn): 1 partnerships (incl. Kyona Energy Limited) announced in 12 mo
Funding rounds
- Mar 2025Seed$2.8M
- Sep 2023Seed$2.7M
- May 2020Seed$368.8K
- Jul 2019Seed$624.9K
Founders & team
Investors
REPP, Frontier-Invest, Triodos Investment Management, ARC Group
Funding & investor landscape
$2Btotal disclosed funding
80companies funded
161disclosed rounds
0rounds last 90 days
Most active investors
Gov3 rounds
Notable founders
Geetika Agarwal
CEO · Hero Future Energies
Rahul Munjal
Managing Director · Hero Future Energies
Frans van den Heuvel
Co-Founder · Renewco Power
Gavin McCallum
CEO · Renewco Power
Christine Boyle
Founder & CEO · Senergy
Carlos Javier
Co-Founder · Elgin
Tony Kilduff
Co-Founder · Elgin
Simon Morrish
Founder & CEO · Xlinks
Oliver Blakeman
Co-Founder & CTO · ARC Power
Karl Boyce
Co-Founder & CEO · ARC Power
Thomas Baumeler
Co-Founder & CEO · GraphEnergyTech
Andrei
Co-Founder · Renbee
Prism market signals · United Kingdom · country-scoped Prism corpus, 2,131,900 docs
Market landscape — 10 sub-themes by coverage
Share of Solar Energy coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
RESEARCH SIGNALS · United Kingdom
How research on Solar Photovoltaics is moving in the United Kingdom
A read on the academic research around Solar Photovoltaics — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 1,817 United Kingdom-affiliated papers.
research sentiment over time
200820172026
enthusiastic · positive · guarded tone
Tone is overwhelmingly optimistic and intensifying — the enthusiastic (strongly-positive) share moved 50% → 53% across 2008–2026.
top research entities
- Imperial College London196
- University of Oxford144
- University of Cambridge89
- University College London71
- Loughborough University71
leading researchers
Henry J. Snaith · Aritra Ghosh · Aron Walsh · James R. Durrant · Jenny Nelson · Christos N. Markides · Samuel D. Stranks · Jiangjian Shi
▲
Breakthroughs428 · 24%
23%→23% share
▲1.0× share momentum1 median citations84% since 2021mostly methods-led
Thermal breakthroughs intensifying — UK solar PV papers surged from 1 to 19, signalling rapid new focus on heat management.
rising sub-themes (early→recent)
- Photovoltaic system6→124
- Solar cell12→48
- Optoelectronics12→32
- Energy conversion efficiency8→28
- Thermal1→19
Newly emergingSolar energy 0→98 · Renewable energy 0→75 · Passivation 0→15
Landmark Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites · 10,475 cites
◆
Advancements881 · 48%
▲ 42%→50% share
▲1.2× share momentum2 median citations88% since 2021mostly empirical
Perovskite advancement research intensifying — UK institutional papers grew from 22 to 75, reflecting sustained structural optimisation momentum.
rising sub-themes (early→recent)
- Photovoltaic system14→270
- Solar energy7→253
- Renewable energy5→162
- Solar cell24→119
- Perovskite (structure)22→75
Newly emergingEnergy storage 0→32 · Electrical engineering 0→26 · Energy (signal processing) 0→25
Landmark Photocatalytic Reduction of CO2 on TiO2 and Other Semiconductors · 2,893 cites
▼
Concerns293 · 16%
▼ 20%→15% share
▼0.8× share momentum1 median citations82% since 2021mostly empirical
Environmental economics newly emerging in UK solar concerns — 12 papers signal growing scrutiny of solar PV's broader economic sustainability.
rising sub-themes (early→recent)
- Photovoltaic system11→107
- Solar energy6→92
- Renewable energy6→77
- Wind power2→16
- Solar cell12→23
Newly emergingSustainability 0→16 · Solar power 0→15 · Environmental economics 0→12
Landmark Anomalous Hysteresis in Perovskite Solar Cells · 2,434 cites
RESEARCH HOTSPOTS · United Kingdom
Where solar pv 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.
London340 · +0.37
Oxford160 · +0.45
Cambridge89 · +0.48
Edinburgh67 · +0.47
Glasgow50 · +0.55
Birmingham33 · +0.52
Manchester31 · +0.54
Bristol10 · +0.32
PATENT SIGNAL · United Kingdom
Who's filing solar pv patents in the United Kingdom
United Kingdom solar pv patent filing is cooling — 2,850 filings from 2,170 assignees (2016–2025), led by Cambridge Display TECH, UNIV Oxford Innovation, Nanoco Technologies; annual filings 343→188.
2,850 filings2,170 assigneespeak 352/yr2016–2025
filing momentum (YoY 2016–2025)
top patent filers
- Cambridge Display TECH254
- UNIV Oxford Innovation209
- Nanoco Technologies184
- Merck Patent171
- ISIS Innovation155
- Oxford Photovoltaics140
- Cambridge Entpr120
- Enecsys118
Common questions
How many Solar Energy companies are there in United Kingdom?
Radar tracks 521 indexable Solar Energy companies headquartered in United Kingdom that meet our profile-completeness bar.
What is the total funding raised by Solar Energy companies in United Kingdom?
The Solar Energy companies in United Kingdom on this list have raised a combined $2B in disclosed equity funding across 80 funded companies.
Which is the highest-funded Solar Energy company in United Kingdom?
Hero Future Energies is the highest-funded Solar Energy company in United Kingdom, with $725M in disclosed equity funding.
How many Solar Energy companies in United Kingdom are funded?
80 of the 521 Solar Energy companies in United Kingdom on this list have disclosed at least one equity funding round.
How many Solar Energy unicorns are there in United Kingdom?
1 Solar Energy company in United Kingdom on this list is valued at $1B or more.
Who are the top investors in United Kingdom Solar Energy companies?
The most active investors in United Kingdom Solar Energy companies on this list include Europa, Low Carbon Innovation Fund, Actis, Barclays, EIC Fund.
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.