Company lists · Data refreshed September 2026

Top 25 Residential energy efficiency companies based in Poland

Name: Residential energy efficiency companies based in Poland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 145 companies tracked

RevenueBase identified 145 residential energy efficiency companies headquartered in Poland as of September 2026 and tracks 791 professional contacts across them, including 188 with verified work emails. Wroclaw is the largest hub.

This list covers residential energy efficiency companies headquartered in Poland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

145Companies

791Contacts tracked

188Verified emails

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The 25 largest residential energy efficiency companies based in Poland

Ranked by team size

Top 25 of 145 residential energy efficiency companies based in Poland, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to residential energy efficiency companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	VOSTI	Indirect evidence	Lublin, PolandHQ checked Sep 17, 2026	51-200	51 contacts →
	Indirect evidence “Dołącz do #VostiTeam!” Source: RevenueBase Database · checked Sep 17, 2026
2	DOM Pełen Energii	Partial evidence	Poznań, PolandHQ checked Sep 17, 2026	51-200	43 contacts →
	Partial evidence “Budujemy energooszczędne domy jednorodzinne, które minimalizują Twoje rachunki i maksymalizują komfort życia.” Source: RevenueBase Database · checked Sep 17, 2026
3	Ista Polska	Partial evidence	Kraków, PolandHQ checked Sep 17, 2026	51-200	39 contacts →
	Partial evidence “Jesteśmy jednym z wiodących na świecie usługodawców zwiększających efektywność energetyczną budynków.” Source: RevenueBase Database · checked Sep 17, 2026
4	DB Energy SA	Strong evidence	Wrocław, PolandHQ checked Sep 17, 2026	11-50	35 contacts →
	Strong evidence “The DB ENERGY SA (DBE) is a leader in the energy efficiency services market for industry in Poland.” Source: RevenueBase Database · checked Sep 17, 2026
5	flexipowergroup.pl	Partial evidence	Pabianice, PolandHQ checked Sep 17, 2026	201-500	34 contacts →
	Partial evidence “FlexiPower Group to firma z ponad 18-letnim doświadczeniem, specjalizująca się w energii odnawialnej.” Source: RevenueBase Database · checked Sep 17, 2026
6	E.On Foton	Partial evidence	PolandHQ checked Sep 17, 2026	51-200	29 contacts →
	Partial evidence “Jesteśmy liderem na rynku odnawialnych źródeł energii.” Source: RevenueBase Database · checked Sep 17, 2026
7	Energetyczny Projekt	Indirect evidence	Kraków, PolandHQ checked Sep 17, 2026	51-200	23 contacts →
	Indirect evidence “Jesteśmy firmą projektowo-wykonawczą, zajmującą się kompleksową termomodernizacją domów oraz budową domów ekologicznych od podstaw.” Source: RevenueBase Database · checked Sep 17, 2026
8	Ekoenergia Polska	Partial evidence	Kielce, PolandHQ checked Sep 17, 2026	51-200	17 contacts →
	Partial evidence “W EkoEnergii czerpiemy energię z odnawialnych źródeł energii.” Source: RevenueBase Database · checked Sep 17, 2026
9	Sm-Project Sp. Z O.O	Partial evidence	Głogów Małopolski, PolandHQ checked Sep 17, 2026	51-200	17 contacts →
	Partial evidence “Nowoczesna energia.” Source: RevenueBase Database · checked Sep 17, 2026
10	Grupa Gamp Sp. Z O.O. Dawniej Gamp S.C	Indirect evidence	Kraków, PolandHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “Grupa Gamp sp.” Source: RevenueBase Database · checked Sep 17, 2026
11	BREWA	Partial evidence	Kalisz, PolandHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “Zapewniamy SAMOWYSTARCZALNOŚĆ dla Twojego domu i firmy poprzez wykorzystanie fotowoltaiki, pomp ciepła, magazynów energii czy stacji ładowania samochodów elektrycznych.” Source: RevenueBase Database · checked Sep 17, 2026
12	Fotowoltaika By Energy Solutions	Indirect evidence	Biała Podlaska, PolandHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
13	Escolight	Partial evidence	Warszawa, PolandHQ checked Sep 17, 2026	1-10	11 contacts →
	Partial evidence “Naszą misją jest dostarczać firmom efektywne rozwiązania energetyczne, ograniczające ślad węglowy i przyczyniające się do dekarbonizacji, bez nakładów inwestycyjnych.” Source: RevenueBase Database · checked Sep 17, 2026
14	PAGRA	Partial evidence	Wrocław, PolandHQ checked Sep 17, 2026	11-50	10 contacts →
	Partial evidence “PAGRA – Należymy do czołowych krajowych firm specjalizujących się w dostarczaniu rozwiązań "energy as a service" dla przedsiębiorstw i samorządów.” Source: RevenueBase Database · checked Sep 17, 2026
15	Aura Plus Sp. Z O.O	Partial evidence	Poznań, PolandHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “AURA Plus to firma specjalizująca się w kompleksowych rozwiązaniach z zakresu efektywności energetycznej w budownictwie.” Source: RevenueBase Database · checked Sep 17, 2026
16	SUN Valley Energy	Partial evidence	Poznań, PolandHQ checked Sep 17, 2026	1-10	6 contacts →
	Partial evidence “Sun Valley Energy is a premier energy modernization company, focused on empowering businesses to minimize their ecological footprint, enhance profitability, and achieve their…” Source: RevenueBase Database · checked Sep 17, 2026
17	Niezależny DOM Sp. Z O.O	Indirect evidence	Poznań, PolandHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Zajmujemy się projektowaniem oraz montażem instalacji fotowoltaicznych, pomp ciepła, klimatyzacji, rekuperacji oraz systemów smart home.” Source: RevenueBase Database · checked Sep 17, 2026
18	Ekodel	Partial evidence	Kościerzyna, PolandHQ checked Sep 17, 2026	11-50	5 contacts →
	Partial evidence “Montujemy instalacje fotowoltaiczne i pompy ciepła dla maksymalnego wykorzystania naturalnych źródeł energii.” Source: RevenueBase Database · checked Sep 17, 2026
19	Arenella Sp. Z O.O	Indirect evidence	Kielce, PolandHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Dobrze wykonana instalacja fotowoltaiczna pozwala na oszczędności nawet do 97% co umożliwia zwrot inwestycji już po 6 latach.” Source: RevenueBase Database · checked Sep 17, 2026
20	Nega-Energy	Partial evidence	Wrocław, PolandHQ checked Sep 17, 2026	1-10	5 contacts →
	Partial evidence “Identyfikujemy - wskazujemy miejsca nadmiernego zużycia energii i ciepła.” Source: RevenueBase Database · checked Sep 17, 2026
21	Mytkowski Domy Energooszczędne	Partial evidence	Komorniki, PolandHQ checked Sep 17, 2026	11-50	5 contacts →
	Partial evidence “MYTKOWSKI Domy Energooszczędne na wielkopolskim rynku budowlanym istnieje od 1997 roku.” Source: RevenueBase Database · checked Sep 17, 2026
22	Polska Grupa Termomodernizacyjna	Partial evidence	Warszawa, PolandHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “Polska Grupa Termomodernizacyjna specjalizuje się w kompleksowej termomodernizacji budynków poprawiając ich efektywność energetyczną oraz obniżając koszty ich eksploatacji.” Source: RevenueBase Database · checked Sep 17, 2026
23	Optimen Energy	Partial evidence	Warszawa/trójmiasto, PolandHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “Wykorzystujemy naszą wiedzę i doświadczenie, by pomóc przedsiębiorcom zmniejszyć zużycie oraz koszty energii elektrycznej, a także dostarczamy rozwiązania oparte o zieloną energię.” Source: RevenueBase Database · checked Sep 17, 2026
24	Alto Modular	Partial evidence	Wrocław, PolandHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “Alto Modular rozwija nowoczesne budownictwo prefabrykowane w oferując energooszczędne i przewidywalne kosztowo domy dla klientów indywidualnych, inwestorów oraz deweloperów.” Source: RevenueBase Database · checked Sep 17, 2026
25	Meterd	Strong evidence	Orzeszkowo, PolandHQ checked Sep 17, 2026	1-10	4 contacts →
	Strong evidence “Energy-efficiency projects for enterprise.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: residential energy efficiency companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names residential energy efficiency companies.
Partial evidence: Its own public description names part of residential energy efficiency companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name residential energy efficiency companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 145 residential energy efficiency companies based in Poland

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Residential energy efficiency companies based in Poland at a glance

As of Sep 17, 2026

23.8%Verified-email coverage

5.5Average contacts per company

11-50Median size (employees)

8.3%Largest-city concentration · Wroclaw

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for Poland, so it is reported there. Company counts and contact totals on this page are exact for Poland, over 145 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among residential energy efficiency companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Poland whose own description of what they do matches “residential energy efficiency companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names residential energy efficiency companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among residential energy efficiency companies, and records with no verified work email. Companies headquartered outside Poland are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 188 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names residential energy efficiency companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many residential energy efficiency companies are there based in Poland?

RevenueBase identified 145 residential energy efficiency companies headquartered in Poland as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

VOSTI, headquartered in Lublin, tops this list with the largest team on record.

Which city has the most residential energy efficiency companies?

Wroclaw leads with 12 headquartered companies, followed by Warszawa (11) and Warsaw (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 188 verified decision-maker contacts tracked across these 145 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.