Best Environment Companies in Spain
The 412 best Environment companies in Spain in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Aqualia.
Spain's Environment sector is moving fast, and this directory cuts through the noise: 412 tracked companies, $6.5B in total disclosed funding, and one unicorn already in the mix. Aqualia leads the pack at $1.3B raised, with Gestcompost not far behind at $131M. Those two alone tell you where institutional capital is concentrating: water infrastructure and waste-to-resource, both pushed along by EU environmental regulations that aren't getting softer anytime soon. The global market sits at roughly $68.8B in 2024 and is forecast to reach $73.5B by 2025 at a 5.3% CAGR, and Spain's funded cohort is positioned squarely in that growth lane.
What I find striking is the digital signal running alongside the capital story. Across 161 environmental and renewables apps, median install growth is running at roughly +20% year-on-year, which means consumer and enterprise engagement with this sector isn't just a funding narrative. It's showing up in behavior. Investors like EIC Fund, EIT InnoEnergy, and Lanzadera are backing that thesis actively. Regulatory clearance decisions globally are also shaping how companies here structure their growth plans. So if you're evaluating partners or funding targets in this space, the rankings below are ordered by disclosed equity and recent momentum, the two signals that actually matter right now.
- Research Reports World
Our analysis of 309 Environment companies
$75.8b in tracked funding; 79% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Environment companies in Spain
| # | Company | Disclosed funding | Last round | Stage | Employees | Founded | Tech stack | Market signals (1y) | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Aqualia Provider of water treatment, filtration, and distribution services | $1.3B | 47 mo ago | Late Stage | 13,000 | 2002 | LiferayTypeScriptJava+15 | — | — | 1 award |
| 2 | T-Solar Solar photovoltaic large plants | $630M | 76 mo ago | Acquired | 21 | 2006 | — | — | 19 patents Solar mounting/support structures and thermally managed micro‑LED lighting modules | — |
| 3 | Acciona Energy Provider of renewable energy solutions | $567M | 53 mo ago | Public | 2,974 | 1997 | Adobe Experience ManagerJavaYouTube+23 | 26 signals ▲62% Acquisition · Earnings · Funding | — | — |
| 4 | X-Elio Offers turnkey project development solutions | $476M | 59 mo ago | Acquired | 240 | 2005 | WordPressApple iCloud MailMicrosoft 365+20 | — | — | 1 partnership |
| 5 | Vela Energy Solar Energy IPP | $446M | 119 mo ago | Funding Raised | 40 | 2014 | — | — | — | — |
| 6 | EDP Renewables Generation of wind power | $408M | 40 mo ago | Public | 936 936 → 1,932 (+106%) | 2007 | — | — | — | — |
| 7 | Fotowatio Renewable Ventures Developer of utility scale renewable energy solutions | $392M | 47 mo ago | Acquired | 200 | 2006 | WordPressApple iCloud MailMicrosoft 365+22 | 4 signals Contracts · Acquisition | — | — |
| 8 | Matrix Renewables Operator of renewable energy platform focused on developing solar, and clean energy projects | $283M | 27 mo ago | Funding Raised | 79 | 2020 | WordPressMySQLPHP+23 | 14 signals ▲367% Leadership · Contracts · Funding | — | 1 expansion |
| 9 | Prosolia Energy Provider of end-to-end solar development and EPC services | $278M | 34 mo ago | Series A | 148 | 2003 | WordPressMySQLPHP+31 | 8 signals ▲700% Funding · Acquisition | — | 1 partnership |
| 10 | opde nergy Developer of renewable energy projects | $203M | 66 mo ago | Public | 174 | 2005 | WordPressMySQLPHP+16 | — | — | 1 award |
| 11 | Solarpack Utility scale solar project developer | $195M | 87 mo ago | Series A | 337 | 2005 | JavaBootstrapApache HTTP Server+8 | — | — | 1 award |
| 12 | Bow Power Investor and developer of renewable energy projects | $175M | 93 mo ago | Deadpooled | 23 | 2015 | — | — | — | — |
| 13 | Alter Enersun Turnkey solution provider for solar PV projects | $172M | 30 mo ago | Series D | 39 | 2009 | WordPressMySQLPHP+13 | — | — | — |
| 14 | Eolia Renovables Developer and operator of solar and wind power plants | $159M | 102 mo ago | Acquired | — | 2007 | — | — | — | — |
| 15 | Gestcompost Provider of waste management and treatment services | $131M | 14 mo ago | Late Stage | 13 | 2003 | WordPressMySQLPHP+14 | — | — | — |
| 16 | Soltec Developer of photo voltaic solar energy | $115M | 92 mo ago | Acquired | 1,817 | 2004 | SalesforceChart.jsApache HTTP Server+13 | 13 signals ▲160% Capital raise · Regulatory · Funding | — | — |
| 17 | Altano Energy Developer of solar and wind energy projects | $70M | 10 mo ago | Series C | 7 | 2021 | WordPressMySQLPHP+17 | — | — | — |
| 18 | SolarMente Provider of solar panel installation services | $55M | 27 mo ago | Seed | 32 | 2019 | WordPressMySQLPHP+30 | — | — | — |
| 19 | Alten Energias Renovables Independent solar power producer | $50M | 99 mo ago | Funding Raised | 48 | 2006 | WordPressMySQLPHP+17 | — | — | — |
| 20 | Grenergy Developer of large scale PV energy systems and solar energy projects | $47M | 84 mo ago | Public | 228 | 2007 | WordPressMySQLPHP+16 | 43 signals ▲126% Contracts · Acquisition · Funding | — | 1 job opening · 1 expansion |
| 21 | Haizea Wind Group Manufacturer of wind towers and offshore foundations | $38M | 22 mo ago | Funding Raised | 1,200 | 2017 | WordPressMySQLPHP+23 | — | — | — |
| 22 | Holaluz Power retailing company | $28M | 18 mo ago | Public | 287 | 2010 | Node.jsGoogle MapsVue.js+26 | — | — | — |
| 23 | Eranovum Provider of investment, development, construction, and operation of solar photovoltaic plants | $28M | 48 mo ago | Series B | — | 2018 | Cart FunctionalityWordPressMySQL+33 | — | — | 3 expansions |
| 24 | Ingenostrum Developer of solar and wind energy projects | $28M | 29 mo ago | Acquired | — | 2009 | WordPressMySQLPHP+14 | — | — | — |
| 25 | Gamma Solutions Provides installation and maintenance services for utility-scale solar projects | $24M | 104 mo ago | Funding Raised | 95 | 2002 | — | — | — | — |
| 26 | Solaria Independent power producer | $22M | 1 mo ago | Public | 236 | 2002 | WordPressPleskMySQL+16 | — | — | 1 expansion |
| 27 | Samara Provider of solar energy services | $19M | 20 mo ago | Series A | 78 | 2022 | Node.jsTailwind CSSReact+16 | — | — | — |
| 28 | Nomad Solar Energy Provider of portable solar energy solutions, offering innovative products and services to bring clean energy… | $17M | 20 mo ago | Series B | — | 2023 | — | — | 5 patents Modular mounting and joining systems for mobile photovoltaic panel installations | — |
| 29 | Gestamp Wind Wind power project developer | $16M | 143 mo ago | Funding Raised | — | 2007 | — | — | — | — |
| 30 | EIDF Solar Developer of solar energy projects | $16M | 19 mo ago | Public | 87 | 2008 | WordPressMySQLPHP+30 | — | — | — |
| 31 | Sunhero Provider of solar panel installation services | $15M | 32 mo ago | Series A | 94 | 2021 | SentryUnbounceTypeScript+24 | — | — | — |
| 32 | Cetaqua Cetaqua, el Centro Tecnológico del Agua | $9M | 28 mo ago | Funding Raised | 116 | 2005 | WordPress Block EditorElementorWordPress+24 | — | — | — |
| 33 | Arena Power Developer of solar PV projects | $9M | 35 mo ago | Funding Raised | 82 | 2018 | WordPress Block EditorElementorWordPress+16 | — | — | — |
| 34 | Cimico Provider of waste water treatment services | $8M | 35 mo ago | Seed | 10 | 2019 | NginxAlpine.jsSwiper+7 | — | 3 patents Provides moving-bed biofilm reactors for wastewater treatment | 1 award |
| 35 | Amelia Offering drone-powered data management and AI-driven analytics for solar energy | $6M | 3 mo ago | Series A | — | 2015 | WordPressMySQLPHP+26 | — | — | 1 job opening |
| 36 | Ceinnmat Technology solutions for treatment of materials in industrial processes | $5M | 61 mo ago | Funding Raised | — | 2010 | — | — | — | — |
| 37 | Amphos 21 Provider of scientific, technical, and strategic consultancy services for mining and other industries | $3M | 48 mo ago | Acquired | 180 | 2007 | WordPressPleskApple iCloud Mail+28 | — | — | 1 award |
| 38 | Nabrawind Technology for wind turbine design and development | $2M | 24 mo ago | Acquired | 33 | 2015 | WordPressMySQLPHP+29 | — | 44 patents Wind turbine blade handling, crane‑free lift systems, and tower‑blade transition components. | 2 job openings · 2 awards |
| 39 | Abora Manufacturer of hybrid solar panels | $2M | 18 mo ago | Funding Raised | 52 52 → 35 (-33%) | 2017 | WordPressMySQLPHP+30 | — | — | 1 partnership |
| 40 | Koalalifter EPC service provider for wind energy projects | $2M | 32 mo ago | Seed | 18 | 2015 | WordPressPleskMySQL+18 | — | — | — |
| 41 | HYDS Provider of hydrometeorological impact forecasting solutions | $2M | 32 mo ago | Funding Raised | — | 2007 | — | — | — | — |
| 42 | Windar Renovables Manufacturer of wind towers | $2M | 28 mo ago | Late Stage | 175 | 2007 | WordPressApple iCloud MailMySQL+21 | — | — | 1 partnership · 1 expansion |
| 43 | La Hormiga Verde Provider of correct management of electronic waste | $1M | 16 mo ago | Seed | — | 2018 | WordPressMySQLPHP+26 | — | — | 2 launchs · 2 awards |
| 44 | Solfy Online marketplace for self-consumption of solar energy, enabling individuals and businesses to produce their… | $1M | 9 mo ago | Seed | 8 | 2022 | WordPress Block EditorWordPressMySQL+35 | — | — | — |
| 45 | Robinsun Portable and self-installable solar kits for households. | $623K | 16 mo ago | Seed | — | 2023 | Cart FunctionalityShopifyBootstrap+25 | — | — | 2 job openings |
| 46 | INGECID Provider of engineering, construction, and systems integration solutions | $606K | 35 mo ago | Funding Raised | 22 | 2008 | WordPressMySQLPHP+21 | — | 27 patents Patents concentrated in computing, sensing & instrumentation | 1 award |
| 47 | Ingelia Provider of organic waste processing services | $562K | 7 mo ago | Series B | 14 | 2005 | Wix eCommerceCart FunctionalityWix+14 | — | 55 patents Converting lignocellulosic biomass into bio‑fuels, biopolymers, and flame‑retardant materials. | — |
| 48 | SolarYou Provider of residential solar panel installation and related services | $509K | 13 mo ago | Seed | — | 2023 | WordPressMySQLPHP+42 | — | — | — |
| 49 | Global Factor Provider of climate change, environmental, and other services | $426K | 25 mo ago | Seed | 151 | 2004 | WordPressMySQLPHP+16 | — | — | 1 job opening |
| 50 | ORYGEN Provider of environmental impact and carbon emissions services | $299K | 23 mo ago | Seed | — | 2022 | WordPressMySQLPHP+20 | — | — | — |
Top 12 Environment companies in Spain
#1
Public · Madrid, Community of Madrid · founded 2002 · 236 employees$22Mraised▾
Solaria is an independent power producer in the solar energy sector. Started as a manufacturer of photovoltaic cells and panels and is now a producer and seller of power from its solar plants connected to the grid.
- Apr 2026Post IPO$351M
- Nov 2022Grant (prize money)$2.8K
- Dec 2017Venture Debt$10.9M
- Nov 2011Post IPO$30M
#2
Series C · Madrid, Community of Madrid · founded 2021 · 7 employees$70.3Mraised▾
Developer of solar and wind energy projects
- Jul 2025Series C$70.3M
#3
Series A · Sant Feliu de Llobregat, Catalonia · founded 2015$5.8Mraised▾
Offering drone-powered data management and AI-driven analytics for solar energy. It provides an online platform that integrates software and drones to enhance efficiency and reduce costs in various sectors such as mining, construction, and renewable energy. Their solution facilitates the capturing and analysis of visual data.
- Mar 2026Series A$5.8M
- Mar 2026Grant (prize money)—
- Mar 2026Conventional Debt—
#4
Late Stage · Zaragoza, Aragon · founded 2003 · 13 employees$130.8Mraised▾
Provider of waste management and treatment services
- Apr 2025PE$130.8M
- Jul 2020PE—
#5
Public · Barcelona, Catalonia · founded 2010 · 287 employees$28Mraised▾
Holaluz supplies electric power to residential and small-medium enterprises in Spain. Claims to manage complete services through online and supply 100% renewable energy. Purchases power from renewable projects through physical bilateral contracts. Other services are natural gas supply, installation of e-vehicle charging station, installation of solar system and energy storage systems.
- Nov 2024Post IPO$15.8M
- Jan 2022Post IPO$7.6M
- Sep 2021Grant (prize money)$138.3K
- Feb 2016Series A$4.3M
#6
Late Stage · Madrid, Community of Madrid · founded 2002 · 13000 employees$1.3Braised▾
Provider of water treatment, filtration, and distribution services
- Jun 2022Conventional Debt$1.2B
- Sep 2021Grant (prize money)$879.5K
- Jun 2021Grant (prize money)$1.3M
- Sep 2020Grant (prize money)$1.8M
#7
Funding Raised · Madrid, Community of Madrid · founded 2020 · 79 employees$283Mraised▾
Operator of renewable energy platform focused on developing solar, and clean energy projects
- Feb 2024Conventional Debt$283M
#8
Funding Raised · Basque Country · founded 2017 · 1200 employees$37.8Mraised▾
Manufacturer of wind towers and offshore foundations
- Aug 2024Conventional Debt$37.8M
#9
Series A · Valencia, Valencian Community · founded 2003 · 148 employees$278.5Mraised▾
Provider of end-to-end solar development and EPC services. It focus on development, financing, construction, operation, and management of solar PV assets. Offers various types of solar projects, such as self-consumption and energy management, solar parks, hangars, and PV carports.
- Aug 2023Conventional Debt$280M
- Oct 2017Series A$1.1M
- Jan 2015Grant (prize money)$161.7K
- Sep 2013Grant (prize money)$350K
#10
Series A · Madrid, Community of Madrid · founded 2022 · 78 employees$18.5Mraised▾
Provider of solar energy services
- Sep 2024Series A$1.6M
- Jun 2024Series A$9.8M
- Dec 2022Seed$4.8M
- Jun 2022Seed$2.1M
#11
Public · Pontevedra, Galicia · founded 2008 · 87 employees$15.9Mraised▾
Developer of solar energy projects
- Nov 2024Post IPO$15.9M
#12
Public · Madrid, Community of Madrid · founded 2007 · 936 employees$408.1Mraised▾
Generation of wind power
- Feb 2023Grant (prize money)$564.3K
- Dec 2021Grant (prize money)$2.3M
- Dec 2018Post IPO$400.6M
- Jun 2018Post IPO—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Environment coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Environmental Monitoring is moving in Spain
A read on the academic research around Environmental Monitoring — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 550 Spain-affiliated papers.
- Consejo Superior de Investigaciones Científicas31
- Universitat Politècnica de València30
- Institute of Environmental Assessment and Water Research23
- Universitat Politècnica de Catalunya18
- Universidad Complutense de Madrid17
- Contamination1→6
- Agriculture1→5
- Pollution1→5
- Pollutant1→4
- Context (archaeology)3→5
- Biodiversity2→18
- Water quality2→17
- Environmental impact assessment1→10
- Contamination1→10
- Air quality index2→8
- European union2→15
- Human health1→10
- Risk assessment2→11
- Biodiversity2→10
- Water quality3→8
Where environmental monitoring is researched across Spain
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.