Company lists · Data refreshed September 2026

Top 25 Industrial heat pump manufacturers based in the United States

Name: Industrial heat pump manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 182 companies tracked

RevenueBase identified 182 industrial heat pump manufacturers headquartered in the United States as of September 2026 and tracks 5,518 professional contacts across them, including 2,071 with verified work emails. Brewer is the largest hub.

This list covers industrial heat pump 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 17, 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.

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

182Companies

5,518Contacts tracked

2,071Verified emails

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The 25 largest industrial heat pump manufacturers based in the United States

Ranked by team size

Top 25 of 182 industrial heat pump manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial heat pump manufacturers: 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	Baltimore Aircoil Company	Indirect evidence	Jessup, MD, United StatesHQ checked Sep 17, 2026	1,001-5,000	906 contacts →
	Indirect evidence “At BAC, we don’t just build cooling systems, we shape the future of sustainable solutions.” Source: RevenueBase Database · checked Sep 17, 2026
2	Evapco, INC	Strong evidence	Taneytown, MD, United StatesHQ checked Sep 17, 2026	1,001-5,000	569 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
3	API Heat Transfer	Partial evidence	Buffalo, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	364 contacts →
	Partial evidence “API Heat Transfer is a leading global provider of heat transfer solutions, recognized for delivering innovative, energy-efficient equipment for more than 140 years.” Source: RevenueBase Database · checked Sep 17, 2026
4	Nooter Eriksen, INC	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 17, 2026	201-500	198 contacts →
	Partial evidence “Nooter/Eriksen, the world's leading independent supplier of Natural Circulation Heat Recovery Steam Generators (HRSG) behind gas turbines, is a single source supplier of custom…” Source: RevenueBase Database · checked Sep 17, 2026
5	Climatemaster, INC	Indirect evidence	Oklahoma City, OK, United StatesHQ checked Sep 17, 2026	501-1,000	178 contacts →
	Indirect evidence “ClimateMaster’s role as a domestic energy and geothermal heating and cooling leader extends back to the late 1950s when the company was first founded in Florida.” Source: RevenueBase Database · checked Sep 17, 2026
6	Fulton	Partial evidence	Pulaski, NY, United StatesHQ checked Sep 17, 2026	501-1,000	171 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
7	Bristol Compressors International LLC	Strong evidence	Bristol, VA, United StatesHQ checked Sep 17, 2026	501-1,000	121 contacts →
	Strong evidence “Bristol Compressors International, LLC, designs and manufactures hermetic compressors for residential and light commercial air conditioning, heat pump and refrigeration…” Source: RevenueBase Database · checked Sep 17, 2026
8	Multistack, LLC	Strong evidence	Sparta, WI, United StatesHQ checked Sep 17, 2026	51-200	115 contacts →
	Strong evidence “Multistack® manufactures modular and conventional chillers, modular geothermal heat pumps, modular air-to-water heat pumps, and modular Dedicated Heat Recovery Chillers (DHRC®) in…” Source: RevenueBase Database · checked Sep 17, 2026
9	Colmac Coil Manufacturing, INC	Strong evidence	Colville, WA, United StatesHQ checked Sep 17, 2026	201-500	89 contacts →
	Strong evidence “Colmac Coil manufactures new and replacement plate fin heating and cooling coils, dry coolers, air-cooled condensers, and heat pipe air-to-air heat exchangers for the commercial…” Source: RevenueBase Database · checked Sep 17, 2026
10	Thermal Care, INC	Indirect evidence	Niles, IL, United StatesHQ checked Sep 17, 2026	51-200	79 contacts →
	Indirect evidence “We are the industry expert and value leader in process heating and cooling solutions.” Source: RevenueBase Database · checked Sep 17, 2026
11	HTP Comfort Solutions	Partial evidence	New Bedford, MA, United StatesHQ checked Sep 17, 2026	51-200	76 contacts →
	Partial evidence “Established in 1974, HTP Comfort Solutions LLC is a full-fledged manufacturer on the cutting edge of energy efficient space and water heating technology.” Source: RevenueBase Database · checked Sep 17, 2026
12	Turbotec Products, INC	Strong evidence	Newton, NC, United StatesHQ checked Sep 17, 2026	51-200	75 contacts →
	Strong evidence “Turbotec, an OEM manufacturer and established, specialist engineering business, produces a diverse range of high performance heat exchangers for virtually any space conditioning…” Source: RevenueBase Database · checked Sep 17, 2026
13	Gradient	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	51-200	67 contacts →
	Strong evidence “Gradient is transforming home comfort with innovative heat pump technology that reduces carbon emissions without compromising performance.” Source: RevenueBase Database · checked Sep 17, 2026
14	Tecogen INC	Strong evidence	North Billerica, MA, United StatesHQ checked Sep 17, 2026	51-200	64 contacts →
	Strong evidence “Tecogen is a leading manufacturer of Combined Heat and Power products including natural gas engine-driven cogeneration, air conditioning systems and high efficiency water heaters…” Source: RevenueBase Database · checked Sep 17, 2026
15	Ephoca	Indirect evidence	Beachwood, OH, United StatesHQ checked Sep 17, 2026	11-50	63 contacts →
	Indirect evidence “Ephoca is the US subsidiary of Innova SRL - Via 1° Maggio, 8 – 38089 Storo (TN) Italy” Source: RevenueBase Database · checked Sep 17, 2026
16	Envirosep	Strong evidence	Georgetown, SC, United StatesHQ checked Sep 17, 2026	51-200	62 contacts →
	Strong evidence “Envirosep Company Overview: Envirosep designs and manufactures integrated solutions for fluid handling, heat transfer and energy recovery.” Source: RevenueBase Database · checked Sep 17, 2026
17	OGI Process Equipment	Strong evidence	Sand Springs, OK, United StatesHQ checked Sep 17, 2026	51-200	56 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
18	Kemco Systems	Partial evidence	Clearwater, FL, United StatesHQ checked Sep 17, 2026	51-200	55 contacts →
	Partial evidence “Kemco Systems, a CECO Environmental Brand, designs and manufactures energy and water conservation systems for Water Reuse/Recycle, Wastewater Treatment, Wastewater Filtration…” Source: RevenueBase Database · checked Sep 17, 2026
19	LB White Company	Indirect evidence	Onalaska, WI, United StatesHQ checked Sep 17, 2026	51-200	54 contacts →
	Indirect evidence “L.B.” Source: RevenueBase Database · checked Sep 17, 2026
20	United Coolair	Strong evidence	York, PA, United StatesHQ checked Sep 17, 2026	51-200	54 contacts →
	Strong evidence “United CoolAir manufactures 3 to 90 ton "All-Indoor" Modular HVAC Solution systems for Commercial & Industrial Cooling as well as 100% Outside Air applications.” Source: RevenueBase Database · checked Sep 17, 2026
21	Thermalnetics	Indirect evidence	Auburn Hills, MI, United StatesHQ checked Sep 17, 2026	51-200	53 contacts →
	Indirect evidence “ThermalNetics, a member of Daikin Group, is on the leading edge of energy recovery and environmentally responsible heating and cooling.” Source: RevenueBase Database · checked Sep 17, 2026
22	Diversified Heat Transfer DHT	Strong evidence	Towaco, NJ, United StatesHQ checked Sep 17, 2026	51-200	47 contacts →
	Strong evidence “Diversified Heat Transfer (DHT), is a leading engineering and manufacturing company of heat exchange equipment and systems for the residential, commercial, and industrial markets.” Source: RevenueBase Database · checked Sep 17, 2026
23	Kerr Pump & Supply	Strong evidence	Oak Park, MI, United StatesHQ checked Sep 17, 2026	51-200	42 contacts →
	Strong evidence “Kerr Pump and Supply, established in 1905 as Kerr Machinery Corporation, and located in a suburb of Detroit, Michigan, is a major supplier and manufacturer of pumps, heat…” Source: RevenueBase Database · checked Sep 17, 2026
24	FORGE	Strong evidence	Newton, MA, United StatesHQ checked Sep 17, 2026	51-200	37 contacts →
	Strong evidence “Forge makes home comfort simple and sustainable with energy-efficient heat pump installations.” Source: RevenueBase Database · checked Sep 17, 2026
25	Nyle Water Heating Systems	Strong evidence	Bangor, ME, United StatesHQ checked Sep 17, 2026	51-200	34 contacts →
	Strong evidence “Leading Manufacturer of Commercial Energy Efficient Heat Pump Water Heating Systems.” 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 heat pump 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 industrial heat pump manufacturers.
Partial evidence: Its own public description names part of industrial heat pump manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial heat pump 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 25 of 182 industrial heat pump manufacturers based in the United States

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Industrial heat pump manufacturers based in the United States at a glance

As of Sep 17, 2026

37.5%Verified-email coverage

30.3Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Brewer

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 182 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 industrial heat pump 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 “industrial heat pump 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 industrial heat pump 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 industrial heat pump 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, 2,071 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.

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 heat pump 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 industrial heat pump manufacturers are there based in the United States?

RevenueBase identified 182 industrial heat pump 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?

Baltimore Aircoil Company, headquartered in Jessup, tops this list with the largest team on record.

Which city has the most industrial heat pump manufacturers?

Brewer leads with 3 headquartered companies, followed by Oklahoma City (3) and Tulsa (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 2,071 verified decision-maker contacts tracked across these 182 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.

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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.