Company lists · Data refreshed September 2026
Top 22 Heating equipment manufacturers based in Poland
RevenueBase identified 124 heating equipment manufacturers headquartered in Poland as of September 2026 and tracks 1,096 professional contacts across them, including 235 with verified work emails. Warszawa is the largest hub.
This list covers heating equipment manufacturers 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.
The 22 largest heating equipment manufacturers based in Poland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 96 contacts → | ||||
Partial evidence “DEFRO – we are specialists in the heating technology industry since 1973.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 79 contacts → | ||||
Indirect evidence “NIBE-BIAWAR to największy w Polsce producent zaawansowanych technologicznie rozwiązań grzewczych do domów jednorodzinnych, budynków wielorodzinnych, obiektów przemysłowych i…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 66 contacts → | ||||
Indirect evidence “Our company has been on the Polish market since 1998, when we started producing fireplace grilles.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 61 contacts → | ||||
Indirect evidence “Grupa Vaillant jest liderem na rynku międzynarodowym w dziedzinie techniki grzewczej i wentylacyjnej oraz klimatyzacji.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 41 contacts → | ||||
Indirect evidence “GRUDNIK SP Z O O is a company based out of Cracow, Małopolskie, Poland.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 34 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 26 contacts → | ||||
Strong evidence “Water Heating & Cooling solutions, offering Storage Calorifiers, Boilers, Heat Exchangers, Heat Pumps and Solar Panels which are designed and manufactured in in accordance with…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 20 contacts → | ||||
Indirect evidence “Jesteśmy producentem węzłów cieplnych, pionierami branży na rynku polskim.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 17 contacts → | ||||
Indirect evidence “STIEBEL ELTRON to rodzinna firma o międzynarodowym zasięgu, z ponad 100-letnią tradycją.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 16 contacts → | ||||
Indirect evidence “WOLF GmbH to niemiecki producent profesjonalnych systemów grzewczych: pomp ciepła, kotłów gazowych i olejowych, systemów wentylacyjnych i klimatyzacyjnych opartych na…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 15 contacts → | ||||
Indirect evidence “Wizytówką firmy jest pełna elegancji armatura grzewcza.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 contacts → | ||||
Indirect evidence “Systema Polska Sp.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 11 contacts → | ||||
Indirect evidence “Nasza Firma jako THERMOVAL POLSKA funkcjonuje od 1 maja 2003 roku, jednak historia jej wcześniejszej działalności sięga lat osiemdziesiątych dwudziestego wieku.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 9 contacts → | ||||
Indirect evidence “Rakoczy Solidne Ciepło - to jedna z najstarszych marek kotlarskich w Polsce.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 9 contacts → | ||||
Indirect evidence “Winterwarm Polska specjalizuje się w produkcji wysokiej klasy nadmuchowego ogrzewania przemysłowego, opartego o bardzo nowoczesne i zaawansowane technologicznie nagrzewnice gazowe.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Indirect evidence “Grupa UNICAL jest liderem w produkcji kotłów oraz urządzeń grzewczych.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 5 contacts → | ||||
Partial evidence “Leimro provides devices for distribution of thermal energy in concrete production and curing both heating and cooling.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Partial evidence “Since 1989, as KHT Group, we have been designing and implementing modern solutions for heating and sanitary systems.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Indirect evidence “O NAS: Produkujemy komponenty i systemy do dystrybucji ogrzewania, chłodzenia, klimatyzacji i wody użytkowej, które są w 100% wykonane we Włoszech dla sektora mieszkaniowego…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Indirect evidence “ESBE jest czołowym producentem rozwiązań dla systemów grzewczych, chłodniczych, CWU w Europie.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Produkcja elektrycznych elementów grzejnych w tym grzałek rurkowych oraz rozwiązań dla infrastruktury kolejowej.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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: heating equipment manufacturers. 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 heating equipment manufacturers.
- Partial evidence
- Its own public description names part of heating equipment manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name heating equipment manufacturers. 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 22 of 124 heating equipment manufacturers based in Poland
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Heating equipment manufacturers based in Poland at a glance
As of Sep 16, 2026Companies by employee count
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 124 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 heating equipment manufacturers, 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 “heating equipment manufacturers”. 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 heating equipment manufacturers), 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 heating equipment manufacturers, 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, 235 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.
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 heating equipment manufacturers, 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 heating equipment manufacturers are there based in Poland?
RevenueBase identified 124 heating equipment manufacturers 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?
DEFRO, headquartered in Ruda Strawczynska, tops this list with the largest team on record.
Which city has the most heating equipment manufacturers?
Warszawa leads with 9 headquartered companies, followed by Krakow (6) and Czestochowa (3).
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 235 verified decision-maker contacts tracked across these 124 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.
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