Company lists · Data refreshed September 2026

Top 25 Heat recovery system installation companies based in the United States

Name: Heat recovery system installation companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 505 companies tracked

RevenueBase identified 505 company matches for heat recovery system installation companies associated with the United States as of September 2026 and tracks 6,431 professional contacts across them, including 2,461 with verified work emails. Houston is the largest hub.

This list covers company matches for heat recovery system installation companies 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 September 20, 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 Sep 20, 2026 How this list was built

505Companies

6,431Contacts tracked

2,461Verified emails

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The 25 largest heat recovery system installation companies based in the United States

Ranked by team size

Top 25 of 505 company matches for heat recovery system installation companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	API Heat Transfer	Exact match	Buffalo, NY, United StatesHQ recorded Sep 20, 2026	1,001-5,000	364 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 · Sep 20, 2026 · View company records in RevenueBase
2	Thermal Engineering International USA INC	Exact match	La Palma, CA, United StatesHQ recorded Sep 20, 2026	201-500	219 contacts →
	Exact match “At TEi, we help the power and process industries operate safely, sustainably, and without costly downtime.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Nooter Eriksen, INC	Exact match	St. Louis, MO, United StatesHQ recorded Sep 20, 2026	201-500	198 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Hudson Technologies	Exact match	Woodcliff Lake, NJ, United StatesHQ recorded Sep 20, 2026	201-500	172 contacts →
	Exact match “At Hudson Technologies, we focus our full attention on refrigerants and how they impact chiller performance.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Hill York	Exact match	Dania Beach, FL, United StatesHQ recorded Sep 20, 2026	201-500	168 contacts →
	Exact match “Hill York is a full service contractor that offers a full array of energy efficient air-conditioning services from concept to completion, maintenance to repair and everything in…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Industrial AIR Flow Dynamics INC	Exact match	Cleveland, TX, United StatesHQ recorded Sep 20, 2026	201-500	112 contacts →
	Exact match “IAFD is the leading provider of replacement expansion joint systems, penetration seal systems and HRSG duct/liner replacement systems sold to power plants.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Midwest Mechanical Commercial, Industrial Hvac Mechanical Services	Exact match	Lombard, IL, United StatesHQ recorded Sep 20, 2026	51-200	110 contacts →
	Exact match “Chicago's Facilities Management Company Midwest Mechanical is a commercial HVAC services and facility management company focused on energy efficiency for building owners and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Renewaire, LLC	Exact match	Waunakee, WI, United StatesHQ recorded Sep 20, 2026	51-200	91 contacts →
	Exact match “For over 40 years, RenewAire has been manufacturing energy recovery ventilators (ERVs) and dedicated outdoor air systems (DOAS).” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	C&c Boiler Sales & Service, INC	Exact match	Charlotte, NC, United StatesHQ recorded Sep 20, 2026	51-200	90 contacts →
	Exact match “Founded in 1977, C&C Boiler Sales & Service, Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Hrst, INC	Exact match	Minnetonka, MN, United StatesHQ recorded Sep 20, 2026	51-200	80 contacts →
	Exact match “We are a power plant technical services and products company specializing in Heat Recovery Steam Generators (HRSGs), waste heat boilers and smaller gas/oil-fired power boilers.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Elitaire	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 20, 2026	11-50	74 contacts →
	Exact match “ElitAire - Technical experts in energy-optimized building solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Energy 1	Exact match	Bozeman, MT, United StatesHQ recorded Sep 20, 2026	201-500	72 contacts →
	Exact match “Energy 1 designs and installs state-of-the-art Mechanical, Electrical, and Plumbing systems that utilize renewable technologies and deliver efficiency, elegance, and legacies our…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	BD Energy Systems, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 20, 2026	51-200	65 contacts →
	Exact match “BD Energy Systems LLC located in Houston, TX, USA is a world leading engineering company operating in the Petrochemical, Fertilizer, Refining, and Gas Processing industry…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	ARC Mechanical	Exact match	Wilmington, MA, United StatesHQ recorded Sep 20, 2026	51-200	64 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 · Sep 20, 2026 · View company records in RevenueBase
15	Tecogen INC	Exact match	North Billerica, MA, United StatesHQ recorded Sep 20, 2026	51-200	64 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Envirosep	Exact match	Georgetown, SC, United StatesHQ recorded Sep 20, 2026	51-200	62 contacts →
	Exact match “Envirosep Company Overview: Envirosep designs and manufactures integrated solutions for fluid handling, heat transfer and energy recovery.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Dunn Heat Exchangers INC	Exact match	Texas City, TX, United StatesHQ recorded Sep 20, 2026	51-200	57 contacts →
	Exact match “Dunn Heat Exchangers, Inc.'s heat exchanger cleaning services are unmatched in the industry.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Thermalnetics	Exact match	Auburn Hills, MI, United StatesHQ recorded Sep 20, 2026	51-200	53 contacts →
	Exact match “ThermalNetics, a member of Daikin Group, is on the leading edge of energy recovery and environmentally responsible heating and cooling.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	XETEX	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 20, 2026	201-500	53 contacts →
	Exact match “Helping buildings breathe better.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Henick-Lane	Exact match	Long Island City, United StatesHQ recorded Sep 20, 2026	51-200	53 contacts →
	Exact match “Established in 1969, Henick-Lane is a leading provider of reliable, cost-effective, and state-of-the-art HVAC construction, installation and maintenance service in NYC and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	Emcor Services Betlem	Exact match	Rochester, NY, United StatesHQ recorded Sep 20, 2026	51-200	52 contacts →
	Exact match “EMCOR Services Betlem has been in business for over 90 years, designing, building, and servicing HVAC, refrigeration, controls, and piping systems for new construction…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Xcel Mechanical Systems	Exact match	Gardena, CA, United StatesHQ recorded Sep 20, 2026	51-200	52 contacts →
	Exact match “Xcel Mechanical Systems is an award-winning engineering and construction firm specializing in commercial and industrial HVAC, plumbing, and process piping systems.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	ACS INC Hvac	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 20, 2026	51-200	52 contacts →
	Exact match “Air Conditioning Solutions is a positive high energy full service air conditioning company with extensive capabilities in emerging technologies, service, plant optimizations…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Matrix HG Inc. Matrix	Exact match	Concord, CA, United StatesHQ recorded Sep 20, 2026	201-500	51 contacts →
	Exact match “DESIGN + BUILD Matrix HG is a commercial HVAC company serving the greater San Francisco Bay Area.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Campbell INC	Exact match	Northwood, OH, United StatesHQ recorded Sep 20, 2026	51-200	51 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 · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “heat recovery system installation companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 505 heat recovery system installation companies based in the United States

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Heat recovery system installation companies based in the United States at a glance

As of Sep 20, 2026

38.3%Verified-email coverage

12.7Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · Houston

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

223

11-50

187

51-200

201-500

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 505 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 “heat recovery system installation companies” 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 2,461 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 September 20, 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 “heat recovery system installation companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heat recovery system installation companies are there based in the United States?

RevenueBase identified 505 company matches for heat recovery system installation companies associated with the United States as of September 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?

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

Which city has the most heat recovery system installation companies?

Houston leads with 11 company records, followed by Tulsa (10) and New York (8).

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 2,461 professional contacts with verified work emails tracked across these 505 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 September 20, 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.