Company lists · Data refreshed September 2026
Top 25 Environmental chamber testing worldwide
RevenueBase identified 225 environmental chamber testing worldwide as of September 2026 and tracks 3,321 professional contacts across them, including 1,050 with verified work emails. The United States is the largest market and Dongguan the largest hub.
This list covers environmental chamber testing 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 environmental chamber testing 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 environmental chamber testing worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 472 contacts → | ||||
Partial evidence “With our testing systems, we can simulate all climatic conditions around the globe and beyond, under accelerated conditions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 192 contacts → | ||||
Indirect evidence “BINDER - Best conditions for your success.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 164 contacts → | ||||
Partial evidence “For more than 55 years, Thermotron has provided quality environmental test equipment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 155 contacts → | ||||
Partial evidence “ESPEC North America builds quality test chambers in the United States as part of the ESPEC Group, which is the largest organizations solely dedicated to the manufacture of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 107 contacts → | ||||
Strong evidence “Thermal Product Solutions (TPS) designs and manufactures industrial and laboratory ovens and furnaces, and environmental temperature cycling and stability test chambers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 93 contacts → | ||||
Indirect evidence “Quality is more than a word ESPEC CORP.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 92 contacts → | ||||
Strong evidence “Founded in 1972, Environmental Specialties designs, manufactures, installs and services a diverse line of controlled environmental chambers that maintain precise conditions for a…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 89 contacts → | ||||
Strong evidence “Aralab began its operations in 1985 and has since been refining the design and manufacturing of chambers where precise and reproducible environmental conditions such as…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 83 contacts → | ||||
Strong evidence “AES is a leader in designing and manufacturing temperature and humidity environmental test chambers and battery testing solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 70 contacts → | ||||
Strong evidence “CM Envirosystems is one of the fastest growing Environmental Test Chamber manufacturers in the world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 51 contacts → | ||||
Strong evidence “Founded in 2003, Darwin Chambers Company has been manufacturing, designing, and installing controlled environmental chambers for over a decade.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 46 contacts → | ||||
Indirect evidence “ThermoTEC ist seit 35 Jahren der Spezialist für den Vertrieb und Service von Klimaprüftechnik.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 33 contacts → | ||||
Strong evidence “Envisys Technologies is an ISO 9001, 14001 and 45001 certified company manufacturing Environmental Test Chambers viz, Thermal Chambers (Temperature-Humidity), Salt Spray Chambers…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 32 contacts → | ||||
Indirect evidence “Committed to the mission success of our Military, Aerospace, Commercial, and Medical industry customers for over 30 years, DPACI is your one source qualified to provide a Turn-Key…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 31 contacts → | ||||
Partial evidence “Manufacturer-Designer over 50 years, Climats brand develops test chambers of high technicality.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 29 contacts → | ||||
Strong evidence “Founded in 1972, Russells Technical Products is a global supplier of Environmental Test Chambers and Systems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 29 contacts → | ||||
Strong evidence “HIACC is the manufacturer & service provider for environmental & reliability testing products.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 28 contacts → | ||||
Strong evidence “SKC ENVIRON LAB PVT LTD is an ESS ( environmental stress screening) test lab for inspection, verification, testing and validation for automotive, aerospace, electronics Electric…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 22 contacts → | ||||
Partial evidence “ENVIRONMENT ASSOCIATES INC.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 contacts → | ||||
Partial evidence “For over 30 years, we have supported the product testing requirements of the nation's computer, fiber optics, telecommunications, medical, food, aerospace/defense, and other…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 20 contacts → | ||||
Partial evidence “Vertical Laboratories is an ISO/IEC 17025:2017 Compliant Testing Laboratory.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 20 contacts → | ||||
Strong evidence “Since its founding, Q Corporation has built its reputation as a preferred manufacturer of custom environmental testing and conditioning systems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 20 contacts → | ||||
Indirect evidence “Isotech Technology Pvt.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 17 contacts → | ||||
Partial evidence “SITEC LAB is an industrial testing company based out of Santiago De Querétaro, Mexico.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 contacts → | ||||
Indirect evidence “FOURNITURE DE SOLUTIONS D'ESSAIS EN.” 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: environmental chamber testing. 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 environmental chamber testing.
- Partial evidence
- Its own public description names part of environmental chamber testing, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name environmental chamber testing. 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 225 environmental chamber testing worldwide
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Environmental chamber testing 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 environmental chamber testing, 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 environmental chamber testing are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “environmental chamber testing”. 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 environmental chamber testing), 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 environmental chamber testing, 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, 1,050 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.
Environmental chamber testing by location
1 lists · largest firstEvery Environmental chamber testing 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 environmental chamber testing, 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 environmental chamber testing are there worldwide?
RevenueBase identified 225 environmental chamber testing 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?
Weisstechnik, headquartered in Reiskirchen, tops this list with the largest team on record.
Which country has the most environmental chamber testing?
The United States leads with 48 companies. Every environmental chamber testing list by country and city is linked on this page.
Which city has the most environmental chamber testing?
Dongguan leads with 8 headquartered companies, followed by Bangalore (6) and Shang Hai Shi Shang Hai Shi (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 1,050 verified decision-maker contacts tracked across these 225 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.