| # | Company | Employees |
|---|---|---|
| 1 |
PKN ORLEN S.A.orlen.pl
Integrated multi-utility in Central Europe and Canada providing energy and fuel to millions, focusing on clean technologies for emission neutrality by 2050 |
3,800 |
| 2 |
KGHM Polska Miedź S.A.kghm.com
A modern international company specializing in copper and silver production through advanced mining and metallurgical operations for over 60 years |
2,169 |
| 3 |
LG Energy Solution Wrocławlgensol.pl
A leading European producer of lithium-ion batteries for electric vehicles, operating a unique plant in Poland and supplying major automotive brands |
1,834 |
| 4 |
PGE Polska Grupa Energetycznagkpge.pl
The company is the largest electric utility in Poland, operating throughout the value chain from generation to distribution and supply |
1,825 |
| 5 |
Grupa TAURONtauron.pl
A major producer of electricity and heat in Poland, focusing on green energy transformation through wind, solar, hydro, and gas power plants |
1,434 |
| 6 |
Polskie Sieci Elektroenergetyczne S.A.pse.pl
Leading operator in the Polish energy sector, responsible for safe and efficient operation of the power system, with a focus on sustainable development and innovation |
1,285 |
| 7 | 1,097 | |
| 8 |
TAURON Dystrybucja SAtauron-dystrybucja.pl
The company is the largest electricity distributor in Poland, providing energy to over 57 million customers, focusing on ensuring continuous electricity supply |
1,017 |
| 9 |
GAZ-SYSTEMgaz-system.pl
Leader in Poland's gas transmission, managing a vast network and transporting billions of cubic meters annually, investing in energy infrastructure and supporting local communities |
962 |
| 10 |
Grupa Eneaenea.pl
A leading player in the Polish electricity market, managing the entire value chain from fuel to distribution, with a focus on safe energy delivery to 25 million customers |
789 |
| 11 |
Grupa Energagrupa.energa.pl
A leading energy group in Poland distributing electricity, generating power from renewable sources, and listed on the Warsaw Stock Exchange |
777 |
| 12 |
PGE Energetyka Kolejowapgeenergetykakolejowa.pl
We are a team dedicated to delivering high-quality services, focusing on innovation, technology, and continuous improvement in the railway and power infrastructure sectors |
756 |
| 13 |
PCC Groupproducts.pcc.eu
An international capital structure operating in chemistry, energy, and logistics, creating innovative products using modern technologies and promoting chemical sciences |
738 |
| 14 |
Rockfinrockfin.pl
A world-leading engineering specializing in designing, manufacturing, testing, and servicing oil and fuel systems for various industrial equipment for over 31 years |
624 |
| 15 |
Energa-Operator S.A.energa-operator.pl
The company acts as a distributor of electricity, serving over 33 million customers in a quarter of Poland's area They also handle energy measurements and data transmission |
623 |
| 16 |
PGE Energia Ciepła S.A.pgeenergiaciepla.pl
The company is a leader in the energy market and environmentally friendly district heating production, following the sale of its Polish assets in 2017 |
607 |
| 17 |
Enea Operatoroperator.enea.pl
A major energy operator in Poland managing distribution systems across six provinces, delivering over 20 TWh of electricity annually to millions of customers |
582 |
| 18 |
ZPUE S.A.zpue.pl
The company creates modern solutions for the energy and industrial sectors, serving public utilities, industry, and infrastructure projects in Poland and globally With 35 years of experience, they are a leading employer in the Świętokrzyskie region and operate multiple facilities in the country They employ around 3000 people and prioritize sustainable development, continually strengthening their position in the electro-energetic market Their flexibility and ability to quickly adapt to market changes allow them to compete internationally and successfully fulfill diverse orders for European and national investors |
564 |
| 19 |
Ekoenergetykaekoenergetyka.com
An innovative technology company based in Europe specializing in designing and manufacturing fast charging systems for electric vehicles |
522 |
| 20 |
Veolia | Polskaveolia.pl
A trusted partner in Poland for 25 years, offering innovative environmental services for cities and industries, focusing on sustainable development |
465 |
| 21 |
TELE-FONIKA Kable S.A.tfkable.com
A renowned manufacturer of copper, aluminum, and optical fiber cables for telecommunications, energy, electronics, shipbuilding, and mining industries worldwide |
417 |
| 22 | 370 | |
| 23 |
Greenvolt Powerpower.greenvolt.com
Renewable energy project development, leveraging a proven platform and experienced leadership to expand into new markets and innovate within the sector. |
370 |
| 24 |
UNIMOT S.A.unimot.pl
A multienergetic provider specializing in trading liquid fuels, natural gas, and electricity for industrial, agricultural, service, and individual/wholesale sectors |
327 |
| 25 |
Polenergiapolenergia.pl
Leading Polish energy group specializing in renewable and low-emission energy production, distribution, and sales Committed to sustainable development and transitioning towards clean energy solutions |
314 |
| 26 |
Remondis Polskaremondis-polska.pl
A global provider of waste management and recycling services, operating in 33 countries with 800 facilities and 32,000 employees Serving 30 million residents annually |
237 |
| 27 |
ENGIE Polskaengie-polska.pl
Provider of high-quality services in facility management, technical equipment maintenance, digital services, energy solutions, and electromobility, with a focus on environmental sustainability and community partnerships |
220 |
| 28 |
Elektrometal Energetyka SAelektrometal-energetyka.pl
The company provides energy solutions with a focus on high quality, innovative products and services tailored to individual customer needs |
110 |
| 29 |
GreenWay Polskagreenwaynetwork.com
Leading regional network of electric car charging points, providing charging infrastructure services, supporting electric car owners, and offering fleet electrification solutions |
94 |
| 30 |
Electrum Holdingelectrum.pl
ClimateTech business specializing in alternative energy solutions, offering comprehensive and creative technological solutions for wind, solar, energy storage, and more |
66 |
| 31 |
Green Capital S.A.greencapitalsa.ai
Develops, constructs, and operates renewable energy projects, specializing in photovoltaic and wind farms and energy storage, contributing to clean electricity production and energy security. |
64 |
| 32 |
Neo Energy Groupneoenergygroup.pl
Develops and operates diverse renewable energy sources: solar, wind, biogas, and energy storage, boasting a 4.8 GW portfolio. Leader in Polish landfill biogas. |
62 |
| 33 | 42 | |
| 34 |
RES Operationsresoperations.pl
Specializing in commercial management of wind and solar assets, offering comprehensive services to owners of renewable energy facilities |
42 |
| 35 |
ENGIE Services Sp. z o.o.engie-services.pl
ENGIE Services is a leading provider of Facility Management services, focused on improving safety, development, and efficiency through innovative and digital solutions |
38 |
| 36 |
MASTER - Odpady i Energia Sp. z o.o.master.tychy.pl
A modern company providing comprehensive waste management services, specializing in waste collection, recycling, and renewable energy production, with a focus on environmental safety |
29 |
| 37 |
Enelionenelion.com
Manufacturer of AC charging stations for electric vehicles; creates reliable, modern, and future-ready products combining advanced technology with timeless design. |
23 |
| 38 |
PRIME PVprimepv.pl
Developing and acquiring renewable energy projects, redesigning for market conditions, optimizing investments, and ensuring effective servicing of completed projects. |
21 |
| 39 |
elomoto.ecoelomoto.eco
Building electric vehicle charging stations across Poland, providing project and execution solutions for property managers and developers. |
10 |
| 40 |
SES Hydrogen Energyseshydrogen.com
A subsidiary of Sescom SA, SES Hydrogen specializes in hydrogen technologies with a mission to decarbonize transport, industry, and energy sectors in Poland and Europe |
4 |
| 41 |
P.P.H. DANKROS Sp. z o.o.dankros.com
Manufactures wooden products, operates a sawmill, and produces certified industrial biofuel and biomass from wood sources. |
3 |
| 42 |
SIMPLE H2simpleh2.com
Manufacturer of Polish electrolyzers for green hydrogen production, energy storage systems, and independent stations for production, storage, and refueling of green hydrogen |
1 |
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
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