Company lists · Data refreshed September 2026

Top 25 Building decarbonization companies based in Poland

RevenueBase identified 156 building decarbonization companies headquartered in Poland as of September 2026 and tracks 1,053 professional contacts across them, including 337 with verified work emails. Warszawa is the largest hub.

This list covers building decarbonization 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 16, 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 16, 2026 86% judged on-target in blind review
156Companies
1,053Contacts tracked
337Verified emails
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The 25 largest building decarbonization companies based in Poland

Ranked by team size
Top 25 of 156 building decarbonization companies based in Poland, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building decarbonization 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceWarszawa, PolandHQ checked Sep 16, 2026501-1,000138 contacts →

Indirect evidence

“Apleona Poland delivers energy optimized operating concepts and innovative services from a single source for real estate, properties and industry.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceKraków, PolandHQ checked Sep 16, 202651-20068 contacts →

Indirect evidence

“At JWA, our mission is to empower clients to achieve their sustainability goals and net zero emissions through innovative, practical, and client-centric solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceMielec, PolandHQ checked Sep 16, 202651-20056 contacts →

Indirect evidence

“Kompleksowo przeprowadzamy firmy przez proces transformacji energetycznej i redukcji śladu węglowego, przyczyniając się do poprawy jakości środowiska, w którym żyjemy.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceKraków, PolandHQ checked Sep 16, 202651-20039 contacts →

Indirect evidence

“Jesteśmy jednym z wiodących na świecie usługodawców zwiększających efektywność energetyczną budynków.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceGdańsk, PolandHQ checked Sep 16, 202611-5028 contacts →

Indirect evidence

“Solwena is a leading energy management technology company and creator of Percee® EMOS – an intelligent Energy Management and Optimisation System that transforms how organisations…”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceWrocław, PolandHQ checked Sep 16, 202611-5026 contacts →

Indirect evidence

“Spółka REXER powstała w 2014 roku we Wrocławiu.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceKraków, PolandHQ checked Sep 16, 202651-20023 contacts →

Indirect evidence

“Jesteśmy firmą projektowo-wykonawczą, zajmującą się kompleksową termomodernizacją domów oraz budową domów ekologicznych od podstaw.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceWarszawa, PolandHQ checked Sep 16, 202611-5019 contacts →

Indirect evidence

“NAPE (National Energy Conservation Agency) was founded in 1994 by the Energy Conservation Foundation created by the Polish Development Bank and it focuses primarily on…”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceGłogów Małopolski, PolandHQ checked Sep 16, 202651-20017 contacts →

Indirect evidence

“Nowoczesna energia.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceKraków, PolandHQ checked Sep 16, 202611-5016 contacts →

Indirect evidence

“Grupa Gamp sp.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceWarszawa, PolandHQ checked Sep 16, 202611-5012 contacts →

Indirect evidence

“Firma NEOEnergetyka Sp.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceWrocław, PolandHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

“Doradzamy jak bezpiecznie i efektywnie zarządzać mediami energetycznymi.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceWarszawa, PolandHQ checked Sep 16, 20261-1011 contacts →

Indirect 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 16, 2026
14Indirect evidenceGliwice, PolandHQ checked Sep 16, 202611-5010 contacts →

Indirect evidence

“Szanowni Państwo, firma Smart EPC powstała w odpowiedzi na trwającą rewolucję w branży energetycznej.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceBielany Wrocławskie, PolandHQ checked Sep 16, 202611-5010 contacts →

Indirect evidence

“Da Vinci Green Energy to spółka doradczo-instalatorska, z szerokim wachlarzem usług dla klienta B2B, dotyczącym optymalizacji kosztów energii w firmach.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidencePoznań, PolandHQ checked Sep 16, 202611-509 contacts →

Indirect evidence

“AURA Plus to firma specjalizująca się w kompleksowych rozwiązaniach z zakresu efektywności energetycznej w budownictwie.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceWrocław, PolandHQ checked Sep 16, 202611-509 contacts →

Indirect evidence

“Energy Saver to zespół ekspertów specjalizujących się w usługach z zakresu auditingu energetycznego, remontowego i oświetleniowego.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceGliwice, PolandHQ checked Sep 16, 202651-2009 contacts →

Indirect evidence

“Energotechnika Engineering Sp.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidencePoznań, PolandHQ checked Sep 16, 20261-108 contacts →

Indirect evidence

“Pracujemy nad budownictwem przyszłości Pomagamy budować i modernizować budynki z myślą o przyszłości.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceCzęstochowa, PolandHQ checked Sep 16, 202651-2007 contacts →

Indirect evidence

“INERGIS od 1988 roku wspiera przedsiębiorstwa w transformacji energetycznej zapewniając niezawodne rozwiązania z zakresu energetyki cieplnej i elektroenergetyki.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceOlsztyn, PolandHQ checked Sep 16, 202611-507 contacts →

Indirect evidence

“Oferujemy efektywne rozwiązania energetyczne zarówno dla Klientów indywidualnych, jak i biznesu sektora produkcyjnego.”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceWarsaw, PolandHQ checked Sep 16, 20261-107 contacts →

Partial evidence

“SUDE is an multi-disciplinary design consultancy providing green building design, construction and advisory services.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceGdynia, PolandHQ checked Sep 16, 20261-107 contacts →

Indirect evidence

“Dostarczamy rozwiązania ograniczenia zużycia energii oraz redukcji emisji zanieczyszczeń w zakładach produkcyjnych i przetwórczych w Polsce oraz za granicą.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceWarszawa, PolandHQ checked Sep 16, 202611-507 contacts →

Indirect evidence

“Open Energy to wiodąca firma doradztwa technicznego oferująca profesjonalne usługi z zakresu bezpieczeństwa i ekspertyz technicznych nieruchomości.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidencePoznań, PolandHQ checked Sep 16, 20261-106 contacts →

Indirect 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 16, 2026

Showing 25 of 156 building decarbonization companies based in Poland

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Building decarbonization companies based in Poland at a glance

As of Sep 16, 2026
32.0%Verified-email coverage
6.8Average contacts per company
1-10Median size (employees)
19.2%Largest-city concentration · Warszawa
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
77
11-50
51
51-200
23
201-500
1
501-1,000
1
5,001-10,000
1

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 156 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 building decarbonization 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 “building decarbonization 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 building decarbonization 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 building decarbonization 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, 337 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 16, 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.

Building decarbonization companies by metro

  • Building decarbonization companies in Warszawa30

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 building decarbonization 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 building decarbonization companies are there based in Poland?

RevenueBase identified 156 building decarbonization 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?

Apleona Poland, headquartered in Warszawa, tops this list with the largest team on record.

Which city has the most building decarbonization companies?

Warszawa leads with 30 headquartered companies, followed by Wroclaw (14) and Krakow (11).

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 337 verified decision-maker contacts tracked across these 156 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 16, 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.