Best Solar Energy Companies in Poland
The 54 best Solar Energy companies in Poland in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: R.Power.
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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 Poland
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | R.Power Developer of solar energy projects | $268M | 24 mo ago | Late Stage | Tomasz Sek Co-Founder | 2010 | WordPressMySQLPHP+16 | — |
| 2 | Menlo Electric Provider of solar panel installation services | $11M | 49 mo ago | Acquired | — | 2017 | WordPressApple iCloud MailMicrosoft 365+20 | 1 job opening |
| 3 | SOLHOTAIR Provider of air solar heating collectors systems | $381K | 70 mo ago | Seed | Malgorzata Stangreciak CEO | 2019 | — | — |
| 4 | ML System Manufacturer of solar power systems and solar panels | $111K | 128 mo ago | Public | — | 2007 | WordPressMySQLPHP+24 | — |
| 5 | Energy Nat Provider of renewable energy solutions, distribution, and energy trading services | — | 7 mo ago | Seed | Pawel Kozlowski Co-Founder & COO | 2011 | WordPress Block EditorWordPressMySQL+22 | 1 job opening · 2 partnerships |
| 6 | Polenergia Polenergia SA is the first Polish private group in power industry made up of vertically integrated companies. | — | 144 mo ago | Public | Jacek Glowacki CEO & President | 1997 | WordPressMySQLPHP+18 | 3 partnerships |
| 7 | 01Cyberaton 01Cyberaton SA is engaged in the realization of all kinds of photovoltaic projects ranging from large systems… | — | — | Public | — | 2007 | — | — |
| 8 | Alledo Developer of solar energy projects | — | — | Acquired | Mariusz Klimczak CEO | 2017 | — | — |
Top 6 Solar Energy companies in Poland
#1
Late Stage · Warsaw, Masovian Voivodeship · founded 2010 · 112 employees$267.7Mraised▾
We are one of the fastest-growing companies on the European market of large-scale solar energy. We build a clean, better future because we know that renewable energy - photovoltaics in particular - is essential for the sustainability and improvement of the current climate situation. We are among the leaders of such changes. Since the establishment of the company in 2012, we have been dynamically expanding our operations.
#2
Acquired · Warsaw, Masovian Voivodeship · founded 2017 · 122 employees$10.6Mraised▾
Provider of solar panel installation services
- Jun 2022Conventional Debt$4.3M
- May 2022Conventional Debt$6.3M
#3
Seed · Izabelin, Masovian Voivodeship · founded 2019$381Kraised▾
Provider of air solar heating collectors systems. The technology enables efficient heat generation by converting solar energy into heat energy. The air collectors have the shape of panels and can be used in various types of buildings, such as residential homes, factory and warehouse buildings, sports halls, shopping centers, restaurants, hotels, and agricultural facilities.
- Sep 2020Seed$381K
#4
Public · Zaczernie, Podkarpackie Voivodeship · founded 2007 · 360 employees$111Kraised▾
Manufacturer of solar power systems and solar panels
- Oct 2015Grant (prize money)$55K
- May 2015Grant (prize money)$56K
#5
Seed · Marki, Masovian Voivodeship · founded 2011—raised▾
Provider of renewable energy solutions, distribution, and energy trading services. The company integrates the energy chain based on renewable sources. It offers import and distribution of components through electrical wholesale networks. The company also implements renewable energy projects, energy trading, consulting, and market education.
- Dec 2025Seed—
#6
Public · Warsaw, Masovian Voivodeship · founded 1997—raised▾
Polenergia is a vertically integrated energy company with varied interests and projects across both conventional and non-conventional energy sources. The group company has holdings across multiple sectors of generation of power from conventional and renewable sources, as well as distribution and trade of electric energy.
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 Poland
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 482 Poland-affiliated papers.
- AGH University of Krakow75
- Institute of Physics70
- Silesian University of Technology38
- Polish Academy of Sciences35
- Jagiellonian University22
- Solar cell2→20
- Perovskite (structure)3→14
- Optoelectronics1→12
- Dye-sensitized solar cell1→4
- Electrode1→4
- Photovoltaic system1→81
- Solar energy1→62
- Solar cell5→43
- Optoelectronics2→28
- Energy conversion efficiency2→14
- Renewable energy25
- Photovoltaic system23
- Solar energy20
- Electricity10
- Wind power7
Where solar pv is researched across Poland
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.