Company lists · Data refreshed September 2026
Top 25 Thermal treatment companies worldwide
RevenueBase identified 680 thermal treatment companies worldwide as of September 2026 and tracks 11,519 professional contacts across them, including 3,192 with verified work emails and 0 with mobile numbers. The United States is the largest market and Pune the largest hub.
This list covers thermal treatment companies 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 thermal treatment companies 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 thermal treatment companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,940 contacts → | ||||
Strong evidence “With more than 165 locations in 22 countries, Bodycote is the world’s leading provider of heat treatment and specialist thermal processing services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 376 contacts → | ||||
Indirect evidence “Superheat was founded on the principle that cutting-edge technology can offer a Better.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 375 contacts → | ||||
Indirect evidence “WE BRING HEAT TO METAL.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 190 contacts → | ||||
Indirect evidence “Analytic Stress made a commitment to quality, safety, and the customer when the company started in the Fall of 1979.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 182 contacts → | ||||
Partial evidence “Aalberts surface technologies - Paulo, delivers precision heat treating and thermal processing services that push the boundaries of what’s possible in metallurgical science.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 158 contacts → | ||||
Partial evidence “In 1989 we sparked off, banking on our team of Electro Thermal Processing experts and the capital of experience we had gathered since 1970.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 129 contacts → | ||||
Partial evidence “AICHELIN UNITHERM HEAT TREATMENT SYSTEMS INDIA PVT.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 129 contacts → | ||||
Indirect evidence “Modern Industries offers customers a single-source solution for precision contract machining, end-to-end complete materials testing lab, and the largest heat treating facility in…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 127 contacts → | ||||
Partial evidence “NITREX is the only fully integrated global player in the surface treatment industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 123 contacts → | ||||
Partial evidence “Bluewater Thermal Solutions (BTS) is the largest commercial thermal solutions provider based in North America.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 123 contacts → | ||||
Partial evidence “Fundada em a Thermojet é líder em Engenharia Térmica na América Latina, com mais de aquecimentos realizados.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 109 contacts → | ||||
Indirect evidence “Solar Atmospheres is one of the world’s largest providers of commercial vacuum heat treating services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 109 contacts → | ||||
Partial evidence “Despatch is a member of ITW EAE, a division of Illinois Tools Works, Inc, and has specialized in thermal processing for over 100 years and is actively using this technical…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 108 contacts → | ||||
Indirect evidence “Taking the stress out of your project.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 90 contacts → | ||||
Indirect evidence “VOMM Impianti e Processi was founded at the end of the '60s in Italy, with the mission of developing new production technologies, more efficient and innovative.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 88 contacts → | ||||
Indirect evidence “Advanced Heat Treat Corp.(AHT) is a recognized leader in providing heat treat services and superior metallurgical solutions to companies across the globe.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 86 contacts → | ||||
Indirect evidence “Global supplier of industrial Heat Treating Equipment, serving a variety of markets worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 85 contacts → | ||||
Indirect evidence “We are a commercial heat treater that processes parts for a wide variety of manufacturers and industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 84 contacts → | ||||
Partial evidence “Harper International is a global leader in complete thermal processing solutions and technical services for the production of advanced materials, including Furnaces, Kilns…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 84 contacts → | ||||
Partial evidence “Parker Trutec, a division of Nihon Parkerizing, is a leading provider of innovative metal surface treatment solutions, driving advancements in quality, durability, and performance.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 83 contacts → | ||||
Indirect evidence “60 Years of Innovative Materials Solutions VAC AERO offers vacuum heat treating and coating services and manufactures vacuum furnaces for aerospace and high-tech industries…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 79 contacts → | ||||
Indirect evidence “We are an engineering company that provides metallurgical/materials joining services and creates quality products.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 77 contacts → | ||||
Indirect evidence “Specialty Steel Treating, founded 1956, has been performing precision heat treating for more than 60 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 76 contacts → | ||||
Indirect evidence “Danville Metal Stamping Co, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 75 contacts → | ||||
Indirect evidence “Welcome to CEC!” 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: thermal treatment companies. 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 thermal treatment companies.
- Partial evidence
- Its own public description names part of thermal treatment companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name thermal treatment companies. 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 680 thermal treatment companies worldwide
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Thermal treatment companies worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 thermal treatment 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.
- Coverage
- 7 countries, largest first: the United States, India, Germany, Italy, Brazil, the United Kingdom, Canada. Country and city lists for thermal treatment companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “thermal treatment 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 thermal treatment 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 thermal treatment companies, 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, 3,192 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.
Thermal treatment companies by location
7 lists · largest firstEvery Thermal treatment companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Thermal treatment companies based in the United States246
- Thermal treatment companies based in India113
- Thermal treatment companies based in Germany92
- Thermal treatment companies based in Italy90
- Thermal treatment companies based in Brazil64
- Thermal treatment companies based in the United Kingdom38
- Thermal treatment companies based in Canada37
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 thermal treatment 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 thermal treatment companies are there worldwide?
RevenueBase identified 680 thermal treatment companies 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?
Bodycote, headquartered in Macclesfield, tops this list with the largest team on record.
Which country has the most thermal treatment companies?
The United States leads with 246 companies, followed by India (113) and Germany (92). Every thermal treatment companies list by country and city is linked on this page.
Which city has the most thermal treatment companies?
Pune leads with 13 headquartered companies, followed by Bangalore (12) and Chennai (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 3,192 verified decision-maker contacts tracked across these 680 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.