Company lists · Data refreshed November 2026

Top 25 Hvac efficiency consultants based in the United States

RevenueBase identified 3,367 company matches for hvac efficiency consultants associated with the United States as of November 2026 and tracks 27,934 professional contacts across them, including 8,444 with verified work emails. Houston is the largest hub.

This list covers company matches for hvac efficiency consultants 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 6, 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 6, 2026 How this list was built
3,367Companies
27,934Contacts tracked
8,444Verified emails
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The 25 largest hvac efficiency consultants based in the United States

Ranked by team size
Top 25 of 3,367 company matches for hvac efficiency consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchGreensboro, TN, United StatesHQ recorded Nov 6, 20261,001-5,000469 contacts →

Exact match

“Since 1947, Hoffman & Hoffman, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMedford, MA, United StatesHQ recorded Nov 6, 2026201-500381 contacts →

Exact match

“At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchGaithersburg, MD, United StatesHQ recorded Nov 6, 2026201-500333 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 6, 2026 · View company records in RevenueBase
4Exact matchColumbus, TX, United StatesHQ recorded Nov 6, 20261,001-5,000249 contacts →

Exact match

“Airtron has developed itself into one of the leading heating, ventilation, and air conditioning (HVAC) providers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 2026201-500223 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMarietta, GA, United StatesHQ recorded Nov 6, 2026201-500211 contacts →

Exact match

“MAXAIR Mechanical, founded in 1988, is a people first company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261,001-5,000210 contacts →

Exact match

“Ambient is a national collective of HVAC design and implementation firms, each entity esteemed in their respective regions with decades of experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGreenwood Village, CO, United StatesHQ recorded Nov 6, 2026201-500208 contacts →

Exact match

“Haynes Mechanical Systems has been keeping commercial buildings running strong since 1968.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAlexandria, VA, United StatesHQ recorded Nov 6, 2026n/a205 contacts →

Exact match

“The Air Conditioning Contractors of America (ACCA) is the national association of heating, ventilation, air conditioning, and refrigeration contractors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchCoconut Grove, FL, United StatesHQ recorded Nov 6, 20265,001-10,000200 contacts →

Exact match

“Watsco Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLaurel, CA, United StatesHQ recorded Nov 6, 2026501-1,000175 contacts →

Exact match

“AMS is one of the nation’s leading providers of commercial heating, ventilation, and air conditioning (HVAC) maintenance, repair, replacement, and new equipment installation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLynnwood, WA, United StatesHQ recorded Nov 6, 2026n/a173 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchGastonia, NC, United StatesHQ recorded Nov 6, 2026201-500169 contacts →

Exact match

“For nearly a century, GSM Services has built its reputation on reliability, honesty, expert service, and high-quality workmanship.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPensacola, FL, United StatesHQ recorded Nov 6, 2026201-500159 contacts →

Exact match

“Engineered Cooling Services is the Southeast’s leading energy and HVAC services company headquartered in Pensacola, FL with local offices in Mobile, Montgomery, Birmingham…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchRichardson, TX, United StatesHQ recorded Nov 6, 202651-200135 contacts →

Exact match

“Engineered Air Balance is the leading authority in total system balancing, building commissioning, and critical environment certifications at the forefront of industry standards…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMilford, OH, United StatesHQ recorded Nov 6, 202651-200134 contacts →

Exact match

“We are a global provider of energy efficiency solutions for commercial buildings with five business offerings: HVAC Testing, Adjusting & Balancing, Intelli-Hood® Kitchen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAkron, OH, United StatesHQ recorded Nov 6, 2026201-500126 contacts →

Exact match

“Since 1972, The K Company has been setting the standard in commercial, residential and industrial heating, air conditioning, ventilation and refrigeration systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchUs, United StatesHQ recorded Nov 6, 20261,001-5,000126 contacts →

Exact match

“Trane, the world leader in creating and sustaining safe, comfortable and energy efficient environments - improves the performance of homes and buildings around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNorfolk, VA, United StatesHQ recorded Nov 6, 2026501-1,000124 contacts →

Exact match

“AIR Control Concepts (“AIR”) is a company that partners with and supports leading commercial HVAC solutions providers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCincinnati, OH, United StatesHQ recorded Nov 6, 202651-200124 contacts →

Exact match

“National HVACR Solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500121 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 · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLombard, IL, United StatesHQ recorded Nov 6, 202651-200115 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 · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNorth Little Rock, MS, United StatesHQ recorded Nov 6, 2026201-500114 contacts →

Exact match

“Our goal at Powers is to make your buildings productive, comfortable, and efficient to operate.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchDouglasville, GA, United StatesHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“Exceeding expectations since 1971, Seasons 4 has been providing custom HVAC systems for supermarkets, schools, commercial and office buildings, government facilities, and other…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBroadview Hts, OH, United StatesHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“Air Control Products has been a trusted partner in the commercial HVAC industry for over 50 years, helping engineers, contractors, and facility teams design and implement…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 3,367 hvac efficiency consultants based in the United States

See the full list, filter by size, metro and specialty, and access 8,444 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hvac efficiency consultants based in the United States at a glance

As of Nov 6, 2026
30.2%Verified-email coverage
8.3Average contacts per company
1-10Median size (employees)
1.8%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,694
11-50
1,271
51-200
296
201-500
37
501-1,000
6
1,001-5,000
6
5,001-10,000
3
10001+
3

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 3,367 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 “hvac efficiency consultants” 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 8,444 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 6, 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 “hvac efficiency consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hvac efficiency consultants are there based in the United States?

RevenueBase identified 3,367 company matches for hvac efficiency consultants 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?

Hoffman & Hoffman, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hvac efficiency consultants?

Houston leads with 59 company records, followed by New York (49) and Austin (33).

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 8,444 professional contacts with verified work emails tracked across these 3,367 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 6, 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.