Best Solar Energy Companies in Belgium
The 68 best Solar Energy companies in Belgium in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: TES.
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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.
Ranked: Best Solar Energy companies in Belgium
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | TES Developer of solar and wind energy projects | $215M | 26 mo ago | Series C | Paul van Poecke Co-Founder & Executive Co-Chairman | 2019 | SanityApple iCloud MailMicrosoft 365+14 | 2 job openings |
| 2 | Ecostal Provider of solar energy services and products | $111M | 21 mo ago | Series D | — | 2008 | Cart FunctionalityWindows ServerBootstrap+16 | 2 launchs |
| 3 | Ikaros Solar O&M and EPC service provider | $21M | 183 mo ago | Acquired | Christofer Voegelin Diener Co-Founder | 2006 | — | — |
| 4 | Sitemark Provider of a platform for managing solar projects across lifecycles | $9M | 64 mo ago | Series A | Stanislas Vaeren Co-Founder | 2016 | WebflowApple iCloud MailMicrosoft 365+19 | — |
| 5 | Green Invest Developer of renewable energy production and energy efficiency installations | $654K | — | Seed | — | 2006 | — | — |
| 6 | cast4all technologies Provider of energy monitoring platform for solar and related energy systems | $163K | 56 mo ago | Funding Raised | Herwig Mannaert Co-Founder | 2001 | — | — |
| 7 | SolarPower Europe Developer of solar energy projects | — | 69 mo ago | Funding Raised | — | 1985 | Node.jsChart.jsYouTube+18 | — |
| 8 | Hinicio Provider of technical and strategic consulting for hydrogen and derivatives | — | 77 mo ago | Funding Raised | Patrick Maio Founder & CEO | 2006 | WordPress Block EditorElementorWordPress+32 | — |
Top 8 Solar Energy companies in Belgium
#1
Series D · Cerexhe-heuseux, Wallonia · founded 2008 · 13 employees$111Mraised▾
Wholesaler of green energy solutions intended for photovoltaic installations. The company offers services such as solar modules, mounting systems, personalized and efficient commercial service, flat roof solutions, technical and logistic services, technical assistance provided by professionals after-sales service and more.
#2
Series C · Zaventem, Flanders · founded 2019 · 105 employees$215.4Mraised▾
Developer of solar and wind energy projects
- Apr 2024Series C$149M
- Jul 2022Series C$66.4M
#3
Series A · Leuven, Flemish Region · founded 2016 · 28 employees$8.8Mraised▾
Provider of a platform for managing solar projects across lifecycles. The platform offers tools for site assessment, progress tracking, quality control, and asset management. It facilitates thermography, work management, and commissioning. The platform integrates drones, robotics, artificial intelligence, analytics, forms, and ticketing. It supports stakeholders, including asset owners, EPC contractors, and O&M teams.
- Jan 2021Grant (prize money)$60.7K
- May 2020Grant (prize money)$904.1K
- Sep 2019Series A$5.5M
- Sep 2018Grant (prize money)$2.1M
#4
Acquired · Schoten, Flanders · founded 2006 · 1 employees$21.2Mraised▾
Ikaros Solar is a Belgian company focused on providing services to the PV industry. The company specializes in providing O&M and EPC services to utility project developers and to industrial and commercial customers who set-up rooftop solar.
- Mar 2011PE$21.2M
#5
Funding Raised · Niel, Flanders · founded 2001$163.3Kraised▾
Provider of energy monitoring platform for solar and related energy systems. The platform collects and analyzes data from various energy devices. It offers independent data retrieval, ensuring continuous monitoring regardless of internet connectivity. The platform supports multiple inverter brands and facilitates reporting according to energy performance regulations. It also provides tools for optimizing energy consumption and analyzing PV generation data.
- Oct 2021Grant (prize money)$163.3K
#6
Seed · La Hulpe, Wallonia · founded 2006 · 3 employees$653.7Kraised▾
Developer of renewable energy production and energy efficiency installations. They develop, realize, finance, and operate renewable energy and energy efficiency projects. The company provides expertise in photovoltaic, industrial, tertiary, light-as-a-service, wind, and hydro projects. They offer solutions for businesses seeking renewable energy project development and financing.
- Seed$653.7K
#7
Funding Raised · Brussels, Brussels · founded 1985 · 37 employees—raised▾
Developer of solar energy projects
#8
Funding Raised · Brussels, Brussels · founded 2006 · 7 employees—raised▾
Provider of technical and strategic consulting for hydrogen and derivatives. The firm advises on strategy, policy, regulation, and investment. It offers project development assistance and digital solutions. The company supports industries in sustainable transport, low carbon hydrogen certification, and training.
- Jan 2020Grant (prize money)—
Funding & investor landscape
Notable founders
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
How research on Solar Photovoltaics is moving in Belgium
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 200 Belgium-affiliated papers.
- Hasselt University44
- KU Leuven37
- IMEC34
- University of Liège20
- Ghent University15
- Optoelectronics5→12
- Perovskite (structure)1→7
- Solar cell2→8
- Tandem1→4
- Solar energy1→16
- Optoelectronics1→14
- Renewable energy1→7
- Solar cell2→6
- Thin film2→4
- Photovoltaic system1→9
- Optoelectronics1→5
Where solar pv is researched across Belgium
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.
Common questions
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.