Company lists · Data refreshed October 2026

Top 25 Indirect fired heaters suppliers based in the United States

RevenueBase identified 323 company matches for indirect fired heaters suppliers associated with the United States as of October 2026 and tracks 5,431 professional contacts across them, including 1,824 with verified work emails. Houston is the largest hub.

This list covers company matches for indirect fired heaters 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 October 26, 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 Oct 26, 2026 How this list was built
323Companies
5,431Contacts tracked
1,824Verified emails
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The 25 largest indirect fired heaters suppliers based in the United States

Ranked by team size
Top 25 of 323 company matches for indirect fired heaters suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 26, 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 matchAustin, TX, United StatesHQ recorded Oct 26, 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 · Oct 26, 2026 · View company records in RevenueBase
2Exact matchHayward, CA, United StatesHQ recorded Oct 26, 2026201-500193 contacts →

Exact match

“R.F.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
3Exact matchPulaski, NY, United StatesHQ recorded Oct 26, 2026501-1,000168 contacts →

Exact match

“Fulton specializes in custom engineered industrial and commercial heating systems featuring steam boilers, hot water and hydronic boilers, thermal fluid heaters, and a full range…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
4Exact matchBennettsville, SC, United StatesHQ recorded Oct 26, 2026201-500168 contacts →

Exact match

“Marley Engineered Products® draws upon a long history of providing reliable comfort heating and ventilation solutions.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
5Exact matchSpokane, WA, United StatesHQ recorded Oct 26, 202651-200140 contacts →

Exact match

“With over 80 years of engine heating manufacturing and integration expertise, customers can depend on Hotstart to keep standby gensets, machinery, ships, locomotives, equipment…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Oct 26, 2026501-1,000129 contacts →

Exact match

“Petro-Chem Development Co, Inc (PCD) was founded in 1939 and has been recognized as a leader in the design and production of fired heaters and furnaces.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Oct 26, 2026201-500115 contacts →

Exact match

“Custom Air Products & Services, Inc.(CAPS), an AirX Climate Solutions company, is a full-service HVAC company that specializes in the design, construction, installation…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
8Exact matchLas Vegas, NV, United StatesHQ recorded Oct 26, 202651-200107 contacts →

Exact match

“Lawyer Mechanical Services (LMS) creates and maintains comfort.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
9Exact matchMarietta, GA, United StatesHQ recorded Oct 26, 202651-20076 contacts →

Exact match

“Sigma Thermal designs, engineers, supplies, and services process heating systems for industry.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
10Exact matchChattanooga, TN, United StatesHQ recorded Oct 26, 2026201-50075 contacts →

Exact match

“Manufacturer of heaters, tanks and related products for a wide variety of industries.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
11Exact matchMissouri City, TX, United StatesHQ recorded Oct 26, 202651-20065 contacts →

Exact match

“Since 1977, Willbanks has provided advanced solutions and support for thousands of commercial heating systems and equipment.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
12Exact matchBattle Creek, MI, United StatesHQ recorded Oct 26, 202651-20064 contacts →

Exact match

“Nexthermal is a collaborative electric heater manufacturing company that focuses its passion and energy toward custom designing electric heaters, systems and assemblies.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
13Exact matchWilmington, MA, United StatesHQ recorded Oct 26, 202651-20063 contacts →

Exact match

“Founded in 1996, ARC Mechanical offers a full range of commercial and industrial HVAC/R services, including 24/7 emergency response.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
14Exact matchMountlake Terrace, WA, United StatesHQ recorded Oct 26, 202651-20058 contacts →

Exact match

“Since 1964, Cole Industrial has been the Northwest's leading provider of new, used and rental boiler equipment for the process and comfort heating needs of nearly every industry…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
15Exact matchOnalaska, WI, United StatesHQ recorded Oct 26, 202651-20056 contacts →

Exact match

“L.B.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
16Exact matchSand Springs, OK, United StatesHQ recorded Oct 26, 202651-20055 contacts →

Exact match

“OGI (Oil, Gas, and Industrial) Process Equipment designs, manufactures, sells, and services TERI brand indirect fired water bath heaters and QuikWater® brand direct fired water…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
17Exact matchBloomfield, NJ, United StatesHQ recorded Oct 26, 202611-5050 contacts →

Exact match

“D&B Building Solutions provides world class heating, ventilating, air conditioning and power generation equipment from leading vendors, including Daikin, Alliance Air Products…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
18Exact matchNorthwood, OH, United StatesHQ recorded Oct 26, 202651-20048 contacts →

Exact match

“We are a full service HVAC contractor employing a highly skilled team of professionals trained in all aspects from proactive preventive maintenance through design/build and…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
19Exact matchNew Orleans, LA, United StatesHQ recorded Oct 26, 202651-20039 contacts →

Exact match

“Steam Solutions keeps commercial and industrial facilities operating at peak performance through its specialized knowledge of steam systems.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Oct 26, 202651-20039 contacts →

Exact match

“GCB Industries | Trusted Experts in Fired-Equipment Solutions GCB Industries is a mechanical and fired-equipment services platform specializing in boiler plants, central utility…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
21Exact matchSugar Land, TX, United StatesHQ recorded Oct 26, 202611-5037 contacts →

Exact match

“FURNACE IMPROVEMENTS SERVICES (FIS) has been actively providing value-added solutions for Fired Heaters, Boilers, and Waste Heat Recovery Units to end-users around the world for…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
22Exact matchOklahoma City, OK, United StatesHQ recorded Oct 26, 202651-20035 contacts →

Exact match

“Since 1918 Federal has been a leading thermal solutions provider in the Midwest.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
23Exact matchMemphis, TN, United StatesHQ recorded Oct 26, 202611-5032 contacts →

Exact match

“Power Equipment Company (Power Equipment of Memphis) specializes in energy systems and heat generating products, providing the knowledge, products, services and supplies necessary…”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
24Exact matchRockland, MA, United StatesHQ recorded Oct 26, 202651-20031 contacts →

Exact match

“Celebrating 75 years in service in 2026!”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
25Exact matchBristol, CT, United StatesHQ recorded Oct 26, 202611-5030 contacts →

Exact match

“ETTER Engineering has historically served the Northeast providing gas equipment and systems to countless markets and applications since 1940.”

Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase

Showing 25 of 323 indirect fired heaters suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 1,824 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Indirect fired heaters suppliers based in the United States at a glance

As of Oct 26, 2026
33.6%Verified-email coverage
16.8Average contacts per company
11-50Median size (employees)
2.2%Largest-city concentration · Houston
Oct 26, 2026Page data refreshed

Companies by employee count

1-10
139
11-50
127
51-200
43
201-500
5
501-1,000
2
1,001-5,000
2
10001+
2

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 323 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 “indirect fired heaters 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 1,824 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 October 26, 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 “indirect fired heaters suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many indirect fired heaters suppliers are there based in the United States?

RevenueBase identified 323 company matches for indirect fired heaters suppliers associated with the United States as of October 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?

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

Which city has the most indirect fired heaters suppliers?

Houston leads with 7 company records, followed by Tulsa (7) and Charlotte (4).

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 1,824 professional contacts with verified work emails tracked across these 323 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 October 26, 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.