Company lists · Data refreshed September 2026
Top 25 Thermostat manufacturers worldwide
RevenueBase identified 605 thermostat manufacturers worldwide as of September 2026 and tracks 11,048 professional contacts across them, including 2,675 with verified work emails. The United States is the largest market and Istanbul the largest hub.
This list covers thermostat manufacturers 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 30, 2026. Country and city lists for thermostat manufacturers 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 thermostat manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 558 contacts → | ||||
Indirect evidence “We're on a mission to improve everyday life while creating a more sustainable world.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 388 contacts → | ||||
Indirect evidence “Remeha, the comfort innovators Remeha ontwikkelt al sinds 1935 voortdurend innovatieve en energiezuinige producten voor warmte en warm water, zowel voor woningen als utiliteit.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 326 contacts → | ||||
Indirect evidence “We are Purmo Group, leader in sustainable indoor climate comfort solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 224 contacts → | ||||
Indirect evidence “Leading company in Europe in the production of radiators for domestic heating, air exchange systems and home automation applied to heating.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 208 contacts → | ||||
Partial evidence “MotoRad is a global leader in the development and manufacturing of high-quality, reliable and durable thermostats, caps and engine management solutions for the Aftermarket.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 185 contacts → | ||||
Partial evidence “For over half a century, OJ Electronics has specialized in designing and developing electronic HVAC controls and drives and thermostats for electric underfloor heating systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 183 contacts → | ||||
Indirect evidence “COTHERM is an industrial group founded in 1948 in Grenoble (France), resolutely turned towards its customers.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 183 contacts → | ||||
Indirect evidence “Every time you turn on an electric appliance or warm up your home, there's a high probability that Backer has had a hand in crafting the solution.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 172 contacts → | ||||
Indirect evidence “Orkli es líder mundial en la fabricación y venta de componentes de seguridad termoeléctrica.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 170 contacts → | ||||
Partial evidence “Founded in 1976, Neptronic is a private corporation that designs, manufactures and distributes products for the HVAC industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 167 contacts → | ||||
Indirect evidence “Marley Engineered Products® draws upon a long history of providing reliable comfort heating and ventilation solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 151 contacts → | ||||
Indirect evidence “Elginkan Topluluğu şirketleri arasında yer alan Emas Makina Sanayi A.Ş, 30 yılı aşkın süredir E.C.A.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 142 contacts → | ||||
Indirect evidence “1996 senesinde bir Beyçelik Holding iştiraki olarak kurulan Warmhaus, iklimlendirme alanındaki 20 yılı aşkın tecrübesi ile panel radyatör, kombi, şofben ve duvar tipi yoğuşmalı…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 134 contacts → | ||||
Indirect evidence “Since 1974, when it first embarked upon its business of producing resistances and electric hotplates for the cooking sector, EIKA has designed a whole range of components for…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 120 contacts → | ||||
Indirect evidence “THE AUTOMOTIVE THERMAL SPECIALIST.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 113 contacts → | ||||
Indirect evidence “Since our inception in 1984, ICM has served the HVAC/R controls market place through our OEM and Aftermarket Distribution partners.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 105 contacts → | ||||
Strong evidence “Founded at the beginning of the 1950s, Thermowatt soon became the leading manufacturer of tubular heating elements and thermostats for water heaters.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 101 contacts → | ||||
Indirect evidence “Líderes en productos y sistemas de climatización gracias a la red de instaladores Instal XPERT y los más de Técnicos Oficiales a tu disposición para ofrecer el mejor producto con…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 99 contacts → | ||||
Indirect evidence “Welcome to Beckett: A legacy of trust, hard work and tenacity.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 96 contacts → | ||||
Indirect evidence “Imprint: Möhlenhoff GmbH is one of the most innovative companies in the heating, ventilation and air conditioning industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 95 contacts → | ||||
Partial evidence “Mysa designs, builds, and sells smart thermostats for electric heating and cooling systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 93 contacts → | ||||
Partial evidence “Sanhua Refrigeration Industrial Group is a leading HVAC-R manufacturer of controls and components with a global footprint and 40 years of experience.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 83 contacts → | ||||
Partial evidence “NTI is a manufacturer of residential and commercial heating equipment founded in Saint John, New Brunswick, Canada.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 83 contacts → | ||||
Partial evidence “With over 35 years of experience, and as Europe's leading manufacturer of electric heating, Rointe is ideally placed to help our customers choose the right heating system, at the…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 78 contacts → | ||||
Strong evidence “Cielo manufactures smart thermostats for mini-splits and central HVAC systems.” Source: RevenueBase Database · checked Sep 30, 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: thermostat 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 thermostat manufacturers.
- Partial evidence
- Its own public description names part of thermostat manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name thermostat 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 25 of 605 thermostat manufacturers worldwide
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,675 reachable decision-makers.
Free signup · no credit card
Thermostat manufacturers worldwide at a glance
As of Sep 30, 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 thermostat 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.
- Coverage
- Every country. Country and city lists for thermostat manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “thermostat 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 thermostat 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 thermostat manufacturers, 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, 2,675 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 30, 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.
Thermostat manufacturers by location
4 lists · largest firstEvery Thermostat manufacturers 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 thermostat 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 thermostat manufacturers are there worldwide?
RevenueBase identified 605 thermostat manufacturers 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?
Ecobee, headquartered in Toronto, tops this list with the largest team on record.
Which country has the most thermostat manufacturers?
The United States leads with 89 companies, followed by the United Kingdom (39) and Italy (33). Every thermostat manufacturers list by country and city is linked on this page.
Which city has the most thermostat manufacturers?
Istanbul leads with 7 headquartered companies, followed by Bangalore (6) and Xiamen (6).
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 2,675 verified decision-maker contacts tracked across these 605 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 30, 2026.
Ready to reach these companies? Verified emails and direct dials for all 605 thermostat manufacturers worldwide. Start with a free account, no credit card.
Download this list →Related lists
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 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.