Company lists · Data refreshed September 2026
Top 24 Humidity chamber manufacturers based in the United States
RevenueBase identified 46 humidity chamber manufacturers headquartered in the United States as of September 2026 and tracks 1,284 professional contacts across them, including 358 with verified work emails. Bohemia is the largest hub.
This list covers humidity chamber manufacturers headquartered in the United States, 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.
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 24 largest humidity chamber manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 164 contacts → | ||||
Indirect evidence “For more than 55 years, Thermotron has provided quality environmental test equipment.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 155 contacts → | ||||
Strong 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 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 51 contacts → | ||||
Partial 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 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 49 contacts → | ||||
Strong evidence “Percival Scientific engineers environmental growth chambers for the superior control of temperature, humidity and lighting for universities, colleges, government institutions and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 36 contacts → | ||||
Indirect evidence “DeHumidification Technologies, LP provides dehumidification and temperature control equipment to create the proper environmental conditions necessary for you to perform and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 29 contacts → | ||||
Partial evidence “Founded in 1972, Russells Technical Products is a global supplier of Environmental Test Chambers and Systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 23 contacts → | ||||
Partial evidence “Parameter Generation & Control is an internationally respected manufacturer of precise stability storage products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 20 contacts → | ||||
Partial 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 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 contacts → | ||||
Strong evidence “The world's leading manufacturer of NIST-standard, two-pressure humidity calibration systems, Thunder Scientific offers the industry's best solution to your humidity measurement…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 8 contacts → | ||||
Partial evidence “BioCold Environmental is one of the nation's leading suppliers of environmental rooms and environmental chambers, with product lines including walk-in cold rooms, dry rooms…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Partial evidence “Safeguarding Product Quality Through Precise Humidity Control We provide humidity control solutions to protect the quality and value of our customers' products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Strong evidence “GEO Calibration is a worldwide leader in the manufacturing of temperature and humidity calibration chambers and instrumentation.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Partial evidence “The industry leader for Environmental Test Chambers and Metal Finishing Equipment.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 5 contacts → | ||||
Partial evidence “We provide products that can help your company fulfill your demanding process equipment needs in the areas of temperature and humidity control equipment, air environmental…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Partial evidence “HUMIDITY CONTROL PERFECTED Maintaining precise humidity levels is critical to ensure moisture doesn’t damage your products or facility, or put employees at risk.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Strong evidence “Thermmax Environmental Rooms|Design, manufacture,installation and servicing of temperature and humidity controlled rooms and chambers for Scientific and Industrial Applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Indirect evidence “Xtra Environemental, LLC.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Partial evidence “BINDER - Best conditions for your success The world's largest specialist in simulation chambers for the scientific and industrial laboratory.” 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: humidity chamber 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 humidity chamber manufacturers.
- Partial evidence
- Its own public description names part of humidity chamber manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name humidity chamber 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 24 of 46 humidity chamber manufacturers based in the United States
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Humidity chamber manufacturers based in the United States at a glance
As of Sep 30, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 46 companies.
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 humidity chamber 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.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “humidity chamber 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 humidity chamber 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 humidity chamber manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- 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, 358 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.
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 humidity chamber 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 humidity chamber manufacturers are there based in the United States?
RevenueBase identified 46 humidity chamber manufacturers headquartered in the United States 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?
Thermotron Industries, headquartered in Holland, tops this list with the largest team on record.
Which city has the most humidity chamber manufacturers?
Bohemia leads with 3 headquartered companies, followed by Cincinnati (2) and Holland (2).
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 358 verified decision-maker contacts tracked across these 46 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.
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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.
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