Company lists · Data refreshed September 2026

Top 25 Industrial thermal processing companies worldwide

Name: Industrial thermal processing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,990 companies tracked

RevenueBase identified 1,990 industrial thermal processing companies worldwide as of September 2026 and tracks 34,865 professional contacts across them, including 10,592 with verified work emails and 0 with mobile numbers. The United States is the largest market and Pune the largest hub.

This list covers industrial thermal processing 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 17, 2026. Country and city lists for industrial thermal processing 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

1,990Companies

34,865Contacts tracked

10,592Verified emails

0Mobile numbers

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

The 25 largest industrial thermal processing companies worldwide

Ranked by team size

Top 25 of 1,990 industrial thermal processing companies worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial thermal processing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Bodycote	Strong evidence	Macclesfield, United KingdomHQ checked Sep 17, 2026	5,001-10,000	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 17, 2026
2	Calderys	Partial evidence	Paris, FranceHQ checked Sep 17, 2026	1,001-5,000	1,724 contacts →
	Partial evidence “Calderys is a leading global provider for industries operating in high-temperature conditions.” Source: RevenueBase Database · checked Sep 17, 2026
3	Thermon	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	901 contacts →
	Strong evidence “Industrial Process Heating Solutions Through its global network, Thermon provides safe, reliable and innovative mission critical industrial process heating solutions.” Source: RevenueBase Database · checked Sep 17, 2026
4	Chromalox	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	635 contacts →
	Partial evidence “When industrial operations depend on heat that simply cannot fail, Chromalox brings unmatched technical knowledge and high‑performance electric heating solutions that stand the…” Source: RevenueBase Database · checked Sep 17, 2026
5	Spirax Group	Indirect evidence	Cheltenham, FranceHQ checked Sep 17, 2026	10001+	560 contacts →
	Indirect evidence “Spirax Group is the new name for Spirax-Sarco Engineering.” Source: RevenueBase Database · checked Sep 17, 2026
6	Superheat	Indirect evidence	New Lenox, IL, United StatesHQ checked Sep 17, 2026	501-1,000	376 contacts →
	Indirect evidence “Superheat was founded on the principle that cutting-edge technology can offer a Better.” Source: RevenueBase Database · checked Sep 17, 2026
7	Inductotherm Group	Indirect evidence	Rancocas, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	375 contacts →
	Indirect evidence “WE BRING HEAT TO METAL.” Source: RevenueBase Database · checked Sep 17, 2026
8	Centrotherm International AG	Partial evidence	Blaubeuren, GermanyHQ checked Sep 17, 2026	501-1,000	318 contacts →
	Partial evidence “Thermische Produktionslösungen und Beschichtungstechnologien zählen zu den Kernkompetenzen von centrotherm.” Source: RevenueBase Database · checked Sep 17, 2026
9	Darchem Engineering	Indirect evidence	Stillington, United KingdomHQ checked Sep 17, 2026	501-1,000	317 contacts →
	Indirect evidence “Darchem Engineering Limited is a world class Engineering Company providing products and services primarily to meet the needs of its customers for engineered solutions to high…” Source: RevenueBase Database · checked Sep 17, 2026
10	Heurtey Petrochem Solutions	Indirect evidence	Rueil-malmaison, FranceHQ checked Sep 17, 2026	1,001-5,000	277 contacts →
	Indirect evidence “Heurtey Petrochem Solutions is a world leader in process furnaces for refining, petrochemicals, syngas and hydrogen markets.” Source: RevenueBase Database · checked Sep 17, 2026
11	Horton, INC	Strong evidence	Roseville, MN, United StatesHQ checked Sep 17, 2026	201-500	267 contacts →
	Strong evidence “As a global leader in thermal control for power systems, Horton® offers a variety of technologies for transportation and industrial applications to operate at the optimal…” Source: RevenueBase Database · checked Sep 17, 2026
12	ALD Vacuum Technologies Gmbh	Indirect evidence	Hanau, GermanyHQ checked Sep 17, 2026	501-1,000	249 contacts →
	Indirect evidence “WELCOME TO ALD VACUUM TECHNOLOGIES.” Source: RevenueBase Database · checked Sep 17, 2026
13	Frigel Group	Indirect evidence	Scandicci, ItalyHQ checked Sep 17, 2026	201-500	248 contacts →
	Indirect evidence “The Frigel group is made up of Italian and foreign companies whose purpose is the design, production, installation, sales and service of systems & solutions for process cooling…” Source: RevenueBase Database · checked Sep 17, 2026
14	Eisenmann INC	Indirect evidence	Greenville, SC, United StatesHQ checked Sep 17, 2026	501-1,000	241 contacts →
	Indirect evidence “Eisenmann is a leading international technology provider for custom-designed surface finishing, material flow automation, environmental as well as process & high-temperature…” Source: RevenueBase Database · checked Sep 17, 2026
15	Ajaxtocco Magnethermic	Partial evidence	Warren, OH, United StatesHQ checked Sep 17, 2026	201-500	234 contacts →
	Partial evidence “Ajax TOCCO Magnethermic® designs and manufactures world class induction heating and melting equipment for various industries and applications throughout the world.” Source: RevenueBase Database · checked Sep 17, 2026
16	PWR Advanced Cooling Technology	Partial evidence	Stapylton, AustraliaHQ checked Sep 17, 2026	201-500	232 contacts →
	Partial evidence “PWR Group is recognised as a world leader when it comes to high performance thermal management by supplying to high level racing teams, including Formula One, NASCAR, V8 super car…” Source: RevenueBase Database · checked Sep 17, 2026
17	BTU International	Strong evidence	Westford, MA, United StatesHQ checked Sep 17, 2026	201-500	218 contacts →
	Strong evidence “BTU International, a wholly-owned subsidiary of Amtech Group (Nasdaq: ASYS), is a global supplier and technology leader of advanced thermal processing equipment solutions in the…” Source: RevenueBase Database · checked Sep 17, 2026
18	Insertec Furnaces & Refractories	Partial evidence	Basauri, SpainHQ checked Sep 17, 2026	201-500	211 contacts →
	Partial evidence “Insertec is a consolidated, 100% privately owned group operating internationally in the industrial heat sector.” Source: RevenueBase Database · checked Sep 17, 2026
19	Analytic Stress Relieving LLC	Indirect evidence	Lafayette, LA, United StatesHQ checked Sep 17, 2026	201-500	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 17, 2026
20	Advanced Cooling Technologies, INC	Partial evidence	Lancaster, PA, United StatesHQ checked Sep 17, 2026	201-500	190 contacts →
	Partial evidence “What We Do ACT develops passive and active thermal solutions for demanding environments where performance margins are tight and failure is costly.” Source: RevenueBase Database · checked Sep 17, 2026
21	Therm-X, California	Partial evidence	Hayward, CA, United StatesHQ checked Sep 17, 2026	201-500	189 contacts →
	Partial evidence “Established in 1983, Therm-x takes pride in delivering thermal solutions incorporating our vertical integration capabilities including; Thermal Design and Test, CNC Machining…” Source: RevenueBase Database · checked Sep 17, 2026
22	Aalberts Surface Technologies	Strong evidence	St. Louis, MO, United StatesHQ checked Sep 17, 2026	201-500	182 contacts →
	Strong 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 17, 2026
23	RAJ Process Equipments And Systems Private Limited	Indirect evidence	Pune, IndiaHQ checked Sep 17, 2026	1,001-5,000	167 contacts →
	Indirect evidence “RAJ PROCESS EQUIPMENTS AND SYSTEMS PRIVATE LIMITED is one of the leading process equipment manufacturers from India, supplying advanced solutions to customers across India and in…” Source: RevenueBase Database · checked Sep 17, 2026
24	Drever International	Partial evidence	Liège, BelgiumHQ checked Sep 17, 2026	51-200	164 contacts →
	Partial evidence “Drever International has been dedicated to advancing the technology of heat processing equipment since 1966.” Source: RevenueBase Database · checked Sep 17, 2026
25	Unitherm Engineers Limited	Indirect evidence	Parel, IndiaHQ checked Sep 17, 2026	201-500	161 contacts →
	Indirect evidence “is a leading engineering company specializing in commercial atmospheric heat treatment.” Source: RevenueBase Database · checked Sep 17, 2026

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: industrial thermal processing 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 industrial thermal processing companies.
Partial evidence: Its own public description names part of industrial thermal processing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial thermal processing 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 1,990 industrial thermal processing companies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 10,592 reachable decision-makers.

Free signup · no credit card

View the full list →

Industrial thermal processing companies worldwide at a glance

As of Sep 17, 2026

30.4%Verified-email coverage

17.5Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Pune

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

596

11-50

830

51-200

429

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 industrial thermal processing 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: 14 countries, largest first: the United States, India, Germany, Italy, Brazil, the United Kingdom, France, Türkiye, Canada, Spain and 4 more. Country and city lists for industrial thermal processing companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “industrial thermal processing 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 industrial thermal processing 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 industrial thermal processing 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, 10,592 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 17, 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.

Industrial thermal processing companies by location

15 lists · largest first

Every Industrial thermal processing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Industrial thermal processing companies based in Pune, India39

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 industrial thermal processing 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 industrial thermal processing companies are there worldwide?

RevenueBase identified 1,990 industrial thermal processing 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 industrial thermal processing companies?

The United States leads with 502 companies, followed by India (368) and Germany (241). Every industrial thermal processing companies list by country and city is linked on this page.

Which city has the most industrial thermal processing companies?

Pune leads with 39 headquartered companies, followed by Chennai (31) and Ahmedabad (29).

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 10,592 verified decision-maker contacts tracked across these 1,990 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,990 industrial thermal processing companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

Browse: Companies home · Lists by location · New lists

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.