Company lists · Data refreshed September 2026
Top 25 Combined heat and power systems worldwide
RevenueBase identified 418 combined heat and power systems worldwide as of September 2026 and tracks 6,374 professional contacts across them, including 2,381 with verified work emails. Germany is the largest market and Berlin the largest hub.
This list covers combined heat and power systems worldwide, 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 19, 2026. Country and city lists for combined heat and power systems follow the table.
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 25 largest combined heat and power systems worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 709 contacts → | ||||
Indirect evidence “Our 30+ years’ experience have involved us in the creation of major UK district heating networks in areas such as Sheffield, Nottingham and London.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 440 contacts → | ||||
Strong evidence “Euroasiatic (EA) is a Heat & Power Generation Solutions Provider.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 286 contacts → | ||||
Partial evidence “Vicinity Energy is a leading district energy company that owns and operates the largest portfolio of district energy systems nationwide, providing steam, hot water, and chilled…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 214 contacts → | ||||
Strong evidence “2G Energy AG is an internationally leading manufacturer of combined and heat and power plants (CHP) for the decentralised provision of power and heat on the basis of gas motors…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 208 contacts → | ||||
Indirect evidence “We are a Czech engineering company that develops and manufactures CHP units and provides comprehensive energy services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 198 contacts → | ||||
Indirect evidence “DCO Energy, LLC is an independent energy development company specializing in the development, engineering, construction, start up, commissioning, operation, maintenance and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 161 contacts → | ||||
Indirect evidence “Cordia is a sustainable energy solutions provider.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 89 contacts → | ||||
Indirect evidence “Oferecemos soluções completas que abrangem a concepção, implementação, investimento, operação e manutenção nas áreas de geração de energia elétrica e térmica e eficiência…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 88 contacts → | ||||
Indirect evidence “Топлофикация София“ ЕАД е най-голямото топлофикационно дружество в България и на Балканския полуостров, с над 65 години опит в предоставянето на централно отопление и комбинирано…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 71 contacts → | ||||
Indirect evidence “ALAMAN COMPANY is a specialized Engineering & Contracting firm which specializes on Small to Medium Energy Facilities in the Middle East which includes but not limited to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 64 contacts → | ||||
Strong evidence “Tecogen is a leading manufacturer of Combined Heat and Power products including natural gas engine-driven cogeneration, air conditioning systems and high efficiency water heaters…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 61 contacts → | ||||
Indirect evidence “Die Energas BHKW GmbH bietet zukunftsfähige Energielösungen mit effizienten KWK-Anlagen in Deutschland.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 61 contacts → | ||||
Strong evidence “Northeast-Western Energy Systems USA, LLC ("NES-WES") provide reliable, Resilient and Renewable Power Solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 61 contacts → | ||||
Partial evidence “Głównym celem naszej działalności jest dostarczanie najwyższej jakości urządzeń oraz świadczenie profesjonalnych usług serwisowych z zakresu przemysłowych systemów energetycznych…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 60 contacts → | ||||
Partial evidence “Aalborg CSP helps power plants and district heating utilities lower energy costs for their customers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 53 contacts → | ||||
Indirect evidence “Newheat propose depuis 2015 des solutions de fourniture de chaleur renouvelable innovantes et compétitives à destination des grands consommateurs de chaleur : les villes et les…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 50 contacts → | ||||
Indirect evidence “Houston-based Thermal Energy Corporation (TECO) is the energy behind what’s next on the campus of the Texas Medical Center (TMC), the world’s largest medical city.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 47 contacts → | ||||
Indirect evidence “Unison Energy installs, owns, and operates microgrids for clients primarily in the MidAtlantic, Northeast and California.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 47 contacts → | ||||
Indirect evidence “LuxEnergie propose, depuis plus de 30 ans dans le secteur énergétique des solutions innovantes clés en main, efficaces d’un point de vue économique et écologique.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 46 contacts → | ||||
Indirect evidence “We are a major manufacturer of the CHP units, microgeneration units and trigeneration units for natural gas, biogas, hydrogen and other fuels.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 44 contacts → | ||||
Strong evidence “ELCOS POWER GENERATORS is an independent group that designs and produces in Italy, systems for the generation of electric energy (in emergency conditions, in self-production, of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 43 contacts → | ||||
Partial evidence “Uniconfort designs, manufactures, and installs Biomass Plants up to 30 MWth and Cogeneration Systems up to 5 MWe.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 35 contacts → | ||||
Strong evidence “Technology leader in fields of Waste Heat Recovery Boilers & Systems, Turnkey Waste Heat driven Power Plants, Process Boilers & Heaters, Zero Liquid Discharge Systems, Super…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 32 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 30 contacts → | ||||
Indirect evidence “ThermaMech is one of the UK’s fastest growing businesses within the District Heating Installation market, currently employing around 30 people in the UK.” Source: RevenueBase Database · checked Sep 19, 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: combined heat and power systems. 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 combined heat and power systems.
- Partial evidence
- Its own public description names part of combined heat and power systems, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name combined heat and power systems. 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 418 combined heat and power systems worldwide
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Combined heat and power systems worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 combined heat and power systems, 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.
- Coverage
- Every country. Country and city lists for combined heat and power systems are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “combined heat and power systems”. 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 combined heat and power systems), 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 combined heat and power systems, and records with no verified work email.
- 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, 2,381 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 19, 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.
Combined heat and power systems by location
4 lists · largest firstEvery Combined heat and power systems list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 combined heat and power systems, 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 combined heat and power systems are there worldwide?
RevenueBase identified 418 combined heat and power systems worldwide 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?
Vital Energi Utilities Limited, headquartered in Blackburn, tops this list with the largest team on record.
Which country has the most combined heat and power systems?
Germany leads with 79 companies, followed by the United States (57) and Italy (34). Every combined heat and power systems list by country and city is linked on this page.
Which city has the most combined heat and power systems?
Berlin leads with 6 headquartered companies, followed by Houston (5) and Calgary (4).
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 2,381 verified decision-maker contacts tracked across these 418 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 19, 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.