Company lists · Data refreshed November 2026

Top 25 Thermal system suppliers based in the United States

RevenueBase identified 1,134 company matches for thermal system suppliers associated with the United States as of November 2026 and tracks 59,552 professional contacts across them, including 19,216 with verified work emails. Houston is the largest hub.

This list covers company matches for thermal system suppliers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 2, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 2, 2026 How this list was built
1,134Companies
59,552Contacts tracked
19,216Verified emails
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The 25 largest thermal system suppliers based in the United States

Ranked by team size
Top 25 of 1,134 company matches for thermal system suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 2, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMinneapolis, MN, United StatesHQ recorded Nov 2, 202610001+4,352 contacts →

Exact match

“Daikin Applied delivers superior air quality and energy efficiency to every solution with innovation in advanced technology, IoT, and next generation compressors.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
2Exact matchSolon, OH, United StatesHQ recorded Nov 2, 20265,001-10,0003,643 contacts →

Exact match

“Swagelok industrial fluid system products and engineering services have helped the world contain, control, and transfer liquids and gases in critical applications since 1947.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
3Exact matchRacine, WI, United StatesHQ recorded Nov 2, 202610001+3,114 contacts →

Exact match

“Since 1916, Modine Manufacturing Company has applied innovative thermal technology to meet customer's needs.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
4Exact matchWaller, TX, United StatesHQ recorded Nov 2, 202610001+2,429 contacts →

Exact match

“Since 1982, Goodman Manufacturing has had one goal: provide customers with reliable, high-quality, energy-efficient, and affordable indoor comfort products.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
5Exact matchNovi, MI, United StatesHQ recorded Nov 2, 202610001+2,360 contacts →

Exact match

“As a global market leader of innovative thermal management and pneumatic comfort technologies for the automotive industry and a leader in medical patient temperature management…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
6Exact matchSt. Louis, NY, United StatesHQ recorded Nov 2, 20261,001-5,0002,039 contacts →

Exact match

“Watlow is a global industrial technology company that uses its world-class engineering expertise, advanced thermal systems and manufacturing excellence to provide a wide array of…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
7Exact matchTulsa, OK, United StatesHQ recorded Nov 2, 20261,001-5,0001,315 contacts →

Exact match

“Driving the industry forward through the design, manufacturing, and rigorous testing of premium HVAC equipment.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
8Exact matchPhiladelphia, PA, United StatesHQ recorded Nov 2, 20261,001-5,0001,083 contacts →

Exact match

“United Refrigeration Inc.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
9Exact matchAustin, TX, United StatesHQ recorded Nov 2, 20261,001-5,000960 contacts →

Exact match

“Industrial Process Heating Solutions Through its global network, Thermon provides safe, reliable and innovative mission critical industrial process heating solutions.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Nov 2, 20261,001-5,000878 contacts →

Exact match

“Raychem is a world-leading provider of heat-trace management systems for infrastructure, industrial, commercial and residential buildings, with operations globally.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
11Exact matchThree Rivers, MI, United StatesHQ recorded Nov 2, 20261,001-5,000855 contacts →

Exact match

“Solving problems with innovative and intelligent products is at the heart of what we do.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
12Exact matchDeerfield Beach, FL, United StatesHQ recorded Nov 2, 2026501-1,000591 contacts →

Exact match

“Gemaire is one of the largest independent distributor of heating, air conditioning, refrigeration equipment, parts and supplies in the world.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
13Exact matchTaneytown, MD, United StatesHQ recorded Nov 2, 20261,001-5,000584 contacts →

Exact match

“At EVAPCO, we are more than a manufacturer-we are a global team of employee-owners committed to delivering innovative heat transfer solutions for customers worldwide.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
14Exact matchO'fallon, MO, United StatesHQ recorded Nov 2, 20261,001-5,000536 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
15Exact matchLittleton, CO, United StatesHQ recorded Nov 2, 2026501-1,000484 contacts →

Exact match

“Since 1965, LONG has been in the business of building performance; making them automated, efficient, green, and safe.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Nov 2, 2026501-1,000479 contacts →

Exact match

“Tranter is a global engineering and manufacturing group specializing in thermal management in the process industries, district heating and within the building envelope.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
17Exact matchGreensboro, NC, United StatesHQ recorded Nov 2, 20261,001-5,000458 contacts →

Exact match

“Since 1947, Hoffman & Hoffman, Inc.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
18Exact matchWestfield, MA, United StatesHQ recorded Nov 2, 2026501-1,000458 contacts →

Exact match

“Today, Mestek is a family of over 45 specialty manufacturers providing heating, ventilating, and air conditioning products, coil handling equipment, extruded aluminum products…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
19Exact matchRockford, IL, United StatesHQ recorded Nov 2, 20261,001-5,000415 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
20Exact matchBuffalo, NY, United StatesHQ recorded Nov 2, 20261,001-5,000379 contacts →

Exact match

“API Heat Transfer is a leading global provider of heat transfer solutions, recognized for delivering innovative, energy-efficient equipment for more than 140 years.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
21Exact matchMesa, AZ, United StatesHQ recorded Nov 2, 2026501-1,000370 contacts →

Exact match

“Shaping the Future of Sustainable Climate Control At XNRGY Climate Systems, we are on a mission to revolutionize climate control with a focus on sustainability and innovation.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
22Exact matchGreensboro, NC, United StatesHQ recorded Nov 2, 2026501-1,000355 contacts →

Exact match

“Since 1962, Brady has been committed to delivering innovative, sustainable building solutions that drive long-term success for our customers.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
23Exact matchColumbia, MD, United StatesHQ recorded Nov 2, 2026201-500342 contacts →

Exact match

“Havtech delivers innovative commercial and industrial HVAC solutions across Maryland, Washington, D.C, Virginia, Pennsylvania, and West Virginia.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
24Exact matchGaithersburg, MD, United StatesHQ recorded Nov 2, 2026201-500329 contacts →

Exact match

“Boland is the leading commercial HVAC systems, services, and building energy solutions provider in the DC metro area.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Nov 2, 20261,001-5,000322 contacts →

Exact match

“Nailor Industries, Inc, operating under Nailor International Group, is a privately held, family-owned company with headquarters located in Houston, TX.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase

Showing 25 of 1,134 thermal system suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 19,216 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Thermal system suppliers based in the United States at a glance

As of Nov 2, 2026
32.3%Verified-email coverage
52.5Average contacts per company
11-50Median size (employees)
2.1%Largest-city concentration · Houston
Nov 2, 2026Page data refreshed

Companies by employee count

1-10
395
11-50
392
51-200
191
201-500
75
501-1,000
25
1,001-5,000
32
5,001-10,000
6
10001+
13

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 1,134 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “thermal system suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 19,216 professional contacts with verified work emails across the full matched dataset. 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 November 2, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “thermal system suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many thermal system suppliers are there based in the United States?

RevenueBase identified 1,134 company matches for thermal system suppliers associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Daikin Applied Americas tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most thermal system suppliers?

Houston leads with 24 company records, followed by Indianapolis (12) and New York (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 19,216 professional contacts with verified work emails tracked across these 1,134 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 2, 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 SmartSearch, 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.