Company lists · Data refreshed October 2026

Top 21 District energy system manufacturers based in Poland

Name: District energy system manufacturers based in Poland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 107 companies tracked

RevenueBase identified 107 company matches for district energy system manufacturers associated with Poland as of October 2026 and tracks 1,565 professional contacts across them, including 255 with verified work emails. Warsaw is the largest hub.

This list covers company matches for district energy system manufacturers associated with Poland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 11, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 11, 2026 How this list was built

107Companies

1,565Contacts tracked

255Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 21 largest district energy system manufacturers based in Poland

Ranked by team size

Top 21 of 107 company matches for district energy system manufacturers based in Poland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	DEFRO	Exact match	Powiatowa 111 A, PolandHQ recorded Oct 11, 2026	501-1,000	96 contacts →
	Exact match “DEFRO – we are specialists in the heating technology industry since 1973.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2	Nibe-Biawar	Exact match	Białystok, PolandHQ recorded Oct 11, 2026	201-500	77 contacts →
	Exact match “NIBE-BIAWAR to największy w Polsce producent zaawansowanych technologicznie rozwiązań grzewczych do domów jednorodzinnych, budynków wielorodzinnych, obiektów przemysłowych i…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3	Polonez Plus Sp. Z O.O	Exact match	Warsaw, PolandHQ recorded Oct 11, 2026	51-200	50 contacts →
	Exact match “Polonez Plus – o Firmie.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4	Metrolog Sp. Z O.O	Exact match	Czarnków, PolandHQ recorded Oct 11, 2026	51-200	46 contacts →
	Exact match “Głównym produktem firmy Metrolog są kompaktowe węzły cieplne.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5	Grudnik Sp. Z O. O	Exact match	Kraków, PolandHQ recorded Oct 11, 2026	501-1,000	39 contacts →
	Exact match “GRUDNIK SP Z O O is a company based out of Cracow, Małopolskie, Poland.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	Termet SA Ferro Group	Exact match	Świebodzice, PolandHQ recorded Oct 11, 2026	201-500	36 contacts →
	Exact match “TERMET S.A, as part of Ferro Group S.A, is a leading manufacturer of heating devices in Poland - gas boilers of various types, heat pumps, water heaters and solutions based on…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7	Versol Group	Exact match	Warsaw, PolandHQ recorded Oct 11, 2026	51-200	26 contacts →
	Exact match “Water Heating & Cooling solutions, offering Storage Calorifiers, Boilers, Heat Exchangers, Heat Pumps and Solar Panels which are designed and manufactured in in accordance with…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8	Stiebel Eltron Polska	Exact match	Warsaw, PolandHQ recorded Oct 11, 2026	11-50	18 contacts →
	Exact match “STIEBEL ELTRON to rodzinna firma o międzynarodowym zasięgu, z ponad 100-letnią tradycją.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9	Virtual Power Plant	Exact match	Łódź, PolandHQ recorded Oct 11, 2026	11-50	13 contacts →
	Exact match “Spółka świadczy usługi optymalizacji energii w nowoczesnych budynkach wielkokubaturowych dzięki technologii Enabler DSR, dostosowującej zużycie energii elektrycznej i ciepła do…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	Thermoval Polska S.A	Exact match	Piaseczno, PolandHQ recorded Oct 11, 2026	11-50	11 contacts →
	Exact match “Nasza Firma jako THERMOVAL POLSKA funkcjonuje od 1 maja 2003 roku, jednak historia jej wcześniejszej działalności sięga lat osiemdziesiątych dwudziestego wieku.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11	Celsium Sp. Z O.O	Exact match	Skarżysko - Kamienna, PolandHQ recorded Oct 11, 2026	51-200	11 contacts →
	Exact match “Spółka działa na rynku ciepłowniczym od 1974 r.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12	Qvantum Polska	Exact match	Dojlidy, PolandHQ recorded Oct 11, 2026	1-10	10 contacts →
	Exact match “Qvantum Energy Technology Sp.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13	Wolf Technika Grzewcza Sp. Z O.O	Exact match	Komorów, PolandHQ recorded Oct 11, 2026	11-50	10 contacts →
	Exact match “WOLF GmbH to niemiecki producent profesjonalnych systemów grzewczych: pomp ciepła, kotłów gazowych i olejowych, systemów wentylacyjnych i klimatyzacyjnych opartych na…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Rakoczy Stal	Exact match	Stalowa Wola, PolandHQ recorded Oct 11, 2026	51-200	9 contacts →
	Exact match “Rakoczy Solidne Ciepło - to jedna z najstarszych marek kotlarskich w Polsce.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	Unical Polska Sp. Z O.O	Exact match	Łaziska Górne, PolandHQ recorded Oct 11, 2026	11-50	5 contacts →
	Exact match “Grupa UNICAL jest liderem w produkcji kotłów oraz urządzeń grzewczych.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	Leimro	Exact match	Konstancin-jeziorna, PolandHQ recorded Oct 11, 2026	1-10	5 contacts →
	Exact match “Leimro provides devices for distribution of thermal energy in concrete production and curing both heating and cooling.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	Samurio	Exact match	Swarzędz, PolandHQ recorded Oct 11, 2026	11-50	5 contacts →
	Exact match “Idea firmy SAMURIO zakłada tworzenie systemów dla domów, które dzięki nowoczesnym technologiom mogą stać się samowystarczalne, w pełni zautomatyzowane, proste w obsłudze i…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18	Giacomini Sp. Z O.O	Exact match	Toruń, PolandHQ recorded Oct 11, 2026	1-10	4 contacts →
	Exact match “O NAS: Produkujemy komponenty i systemy do dystrybucji ogrzewania, chłodzenia, klimatyzacji i wody użytkowej, które są w 100% wykonane we Włoszech dla sektora mieszkaniowego…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	Esbe Polska	Exact match	Poznań, PolandHQ recorded Oct 11, 2026	1-10	3 contacts →
	Exact match “ESBE jest czołowym producentem rozwiązań dla systemów grzewczych, chłodniczych, CWU w Europie.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	Enetech Sp. Z O.O	Exact match	Kraków, PolandHQ recorded Oct 11, 2026	1-10	2 contacts →
	Exact match “Enetech sp.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21	Miarpol	Exact match	Częstochowa, PolandHQ recorded Oct 11, 2026	11-50	1 contacts →
	Exact match “Zakłady Gospodarcze "MIARPOL" Sp.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “district energy system manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 21 of 107 district energy system manufacturers based in Poland

See the full list, filter by size, metro and specialty, and access 255 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

District energy system manufacturers based in Poland at a glance

As of Oct 11, 2026

16.3%Verified-email coverage

14.6Average contacts per company

11-50Median size (employees)

12.1%Largest-city concentration · Warsaw

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 107 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Poland whose business descriptions match “district energy system manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 255 professional contacts with verified work emails across the full matched dataset. 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 October 11, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “district energy system manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many district energy system manufacturers are there based in Poland?

RevenueBase identified 107 company matches for district energy system manufacturers associated with Poland as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

DEFRO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most district energy system manufacturers?

Warsaw leads with 13 company records, followed by Czestochowa (3) and Katowice (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 255 professional contacts with verified work emails tracked across these 107 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 11, 2026.

Ready to reach these companies? Verified emails and direct dials for all 107 district energy system manufacturers based in Poland. Start with a free account, no credit card.

Download this list →

Related lists

District energy system manufacturers by geography

Browse the directory

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 SmartSearch, 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.