Company lists · Data refreshed October 2026

Top 25 Building automation and heat pump control companies based in the United States

RevenueBase identified 3,414 company matches for building automation and heat pump control companies associated with the United States as of October 2026 and tracks 58,795 professional contacts across them, including 23,315 with verified work emails. Houston is the largest hub.

This list covers company matches for building automation and heat pump control 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 October 9, 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 9, 2026 How this list was built
3,414Companies
58,795Contacts tracked
23,315Verified emails
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The 25 largest building automation and heat pump control companies based in the United States

Ranked by team size
Top 25 of 3,414 company matches for building automation and heat pump control companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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 matchPasadena, CA, United StatesHQ recorded Oct 9, 20265,001-10,0002,573 contacts →

Exact match

“Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than mechanical projects.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2Exact matchKennesaw, GA, United StatesHQ recorded Oct 9, 2026501-1,0001,181 contacts →

Exact match

“Automated Logic Corporation (ALC) provides innovative building automation and control systems.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3Exact matchAtlanta, GA, United StatesHQ recorded Oct 9, 20261,001-5,0001,088 contacts →

Exact match

“McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4Exact matchLouisville, KY, United StatesHQ recorded Oct 9, 2026501-1,0001,016 contacts →

Exact match

“CMTA is part of Legence, a Nasdaq Listed company.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5Exact matchPhoenix, AZ, United StatesHQ recorded Oct 9, 20261,001-5,000666 contacts →

Exact match

“Climatec has been making buildings safer, more comfortable and efficient for over 40 years.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6Exact matchEdison, NJ, United StatesHQ recorded Oct 9, 20261,001-5,000658 contacts →

Exact match

“Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7Exact matchAurora, OH, United StatesHQ recorded Oct 9, 20261,001-5,000646 contacts →

Exact match

“As part of the RoviSys family of companies, we deliver vendor independent building automation, electrical power management, facility monitoring, and systems integration solutions…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8Exact matchNorthbrook, IL, United StatesHQ recorded Oct 9, 20261,001-5,000592 contacts →

Exact match

“At F.E.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9Exact matchIndianapolis, IN, United StatesHQ recorded Oct 9, 20261,001-5,000537 contacts →

Exact match

“DEEM, LLC is a mechanical and electrical company centrally located in Fishers, Indiana with satellite offices throughout the Midwest down to the southeastern United States.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10Exact matchCharlotte, NC, United StatesHQ recorded Oct 9, 2026501-1,000489 contacts →

Exact match

“Since 1996, MSS has made thousands of facilities more efficient, comfortable, secure and reliable for owners, operators and occupiers across the Carolinas and throughout North…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11Exact matchLittleton, CO, United StatesHQ recorded Oct 9, 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 · Oct 9, 2026 · View company records in RevenueBase
12Exact matchGreensboro, NC, United StatesHQ recorded Oct 9, 20261,001-5,000458 contacts →

Exact match

“Since 1947, Hoffman & Hoffman, Inc.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13Exact matchLynnwood, WA, United StatesHQ recorded Oct 9, 2026201-500420 contacts →

Exact match

“UMC helps clients solve the complex challenges of built environments and their systems.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14Exact matchMesa, AZ, United StatesHQ recorded Oct 9, 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 · Oct 9, 2026 · View company records in RevenueBase
15Exact matchSan Jose, CA, United StatesHQ recorded Oct 9, 2026201-500359 contacts →

Exact match

“Whether building quality work environments, valuable relationships or community ties, Air Systems never cuts corners.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16Exact matchGreensboro, NC, United StatesHQ recorded Oct 9, 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 · Oct 9, 2026 · View company records in RevenueBase
17Exact matchSan Jose, CA, United StatesHQ recorded Oct 9, 2026201-500349 contacts →

Exact match

“United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18Exact matchColumbia, MD, United StatesHQ recorded Oct 9, 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 · Oct 9, 2026 · View company records in RevenueBase
19Exact matchPleasanton, CA, United StatesHQ recorded Oct 9, 2026201-500338 contacts →

Exact match

“Sunbelt Controls is a leading full-service building automation contractor for new construction and retrofit projects in the Western United States.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchGaithersburg, MD, United StatesHQ recorded Oct 9, 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 · Oct 9, 2026 · View company records in RevenueBase
21Exact matchDallas, TX, United StatesHQ recorded Oct 9, 2026201-500328 contacts →

Exact match

“Entech consists of several cohesive business groups working together to provide services for commercial and industrial buildings.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22Exact matchFort Worth, TX, United StatesHQ recorded Oct 9, 2026201-500306 contacts →

Exact match

“DynaTen leads the DFW Metroplex in engineering, design, technology, controls, service maintenance, and mechanical contracting.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23Exact matchRenton, WA, United StatesHQ recorded Oct 9, 2026201-500306 contacts →

Exact match

“ATS, established in 1986, specializes in custom engineered and installed Building Automation Systems control solutions for buildings’ mechanical and electrical systems, allowing…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24Exact matchLogansport, IN, United StatesHQ recorded Oct 9, 2026201-500257 contacts →

Exact match

“Dilling Group Inc.(DGI) provides industrial and commercial solutions with exceptional value.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25Exact matchTukwila, WA, United StatesHQ recorded Oct 9, 2026201-500240 contacts →

Exact match

“As one of the largest full service mechanical contractors headquartered in the Pacific Northwest, Holaday Parks has grown well beyond Seattle.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase

Showing 25 of 3,414 building automation and heat pump control companies based in the United States

See the full list, filter by size, metro and specialty, and access 23,315 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building automation and heat pump control companies based in the United States at a glance

As of Oct 9, 2026
39.7%Verified-email coverage
17.2Average contacts per company
11-50Median size (employees)
1.6%Largest-city concentration · Houston
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
1,374
11-50
1,348
51-200
505
201-500
99
501-1,000
29
1,001-5,000
17
5,001-10,000
6
10001+
6

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 3,414 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 “building automation and heat pump control 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 23,315 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 9, 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 “building automation and heat pump control companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building automation and heat pump control companies are there based in the United States?

RevenueBase identified 3,414 company matches for building automation and heat pump control companies 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?

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

Which city has the most building automation and heat pump control companies?

Houston leads with 54 company records, followed by New York (54) and Phoenix (25).

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 23,315 professional contacts with verified work emails tracked across these 3,414 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 9, 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.