Company lists · Data refreshed November 2026

Top 25 Rooftop unit replacement companies based in the United States

RevenueBase identified 4,253 company matches for rooftop unit replacement companies associated with the United States as of November 2026 and tracks 33,215 professional contacts across them, including 9,002 with verified work emails. Houston is the largest hub.

This list covers company matches for rooftop unit replacement 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 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
4,253Companies
33,215Contacts tracked
9,002Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest rooftop unit replacement companies based in the United States

Ranked by team size
Top 25 of 4,253 company matches for rooftop unit replacement companies 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 matchSan Jose, CA, United StatesHQ recorded Nov 6, 2026201-500364 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchWalnut Creek, CA, United StatesHQ recorded Nov 6, 20261,001-5,000269 contacts →

Exact match

“At The Arcticom Group (TAG), our family of best-in-market operating companies delivers the highest-quality service and customer experience in commercial and industrial HVACR.”

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 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
8Exact matchSmyrna, SC, United StatesHQ recorded Nov 6, 2026201-500191 contacts →

Exact match

“Backed by 80 years of experience, the more than 300 associates at EMCOR Services Aircond design and deliver comprehensive, timely, and cost effective HVAC and building system…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact matchRaleigh, NC, United StatesHQ recorded Nov 6, 2026201-500174 contacts →

Exact match

“Founded in 1954, Newcomb and Company is a full-service mechanical contractor providing customers in the commercial, residential, and industrial sectors with innovative…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact 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
12Exact matchMyrtle Beach, SC, United StatesHQ recorded Nov 6, 202651-200166 contacts →

Exact match

“We believe in… excellence and heart.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact 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
16Exact matchQueens Village, NY, United StatesHQ recorded Nov 6, 2026201-500126 contacts →

Exact match

“Donnelly Mechanical is New York City’s premier provider of innovative commercial HVAC service, maintenance and construction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact 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
18Exact 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
19Exact matchFort Myers, FL, United StatesHQ recorded Nov 6, 2026501-1,000117 contacts →

Exact match

“Crowther Roofing & Cooling is a trusted leader in roofing and HVAC services across South and Southwest Florida.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact 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
21Exact matchMckinney, TX, United StatesHQ recorded Nov 6, 2026201-500115 contacts →

Exact match

“Air-Conditioning Innovative Solutions serves Dallas, Fort Worth, Houston and Austin with commercial HVAC services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact 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
23Exact matchLas Vegas, NV, United StatesHQ recorded Nov 6, 202651-200110 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLargo, FL, United StatesHQ recorded Nov 6, 2026201-500109 contacts →

Exact match

“ConServ Building Services, LLC provides HVAC repairs, preventative maintenance, and 24-hour emergency service for commercial businesses throughout the southeastern United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchArlington Heights, IL, United StatesHQ recorded Nov 6, 202651-200105 contacts →

Exact match

“Meeting Your Needs.Exceeding Your Expectations" For over 70 years, Atomatic Mechanical Services has been dedicated to quality design, installation and service of HVAC systems for…”

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

Showing 25 of 4,253 rooftop unit replacement companies based in the United States

See the full list, filter by size, metro and specialty, and access 9,002 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Rooftop unit replacement companies based in the United States at a glance

As of Nov 6, 2026
27.1%Verified-email coverage
7.8Average contacts per company
11-50Median size (employees)
1.4%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,040
11-50
1,690
51-200
382
201-500
49
501-1,000
9
1,001-5,000
4
5,001-10,000
3
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 4,253 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 “rooftop unit replacement 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 9,002 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 “rooftop unit replacement companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rooftop unit replacement companies are there based in the United States?

RevenueBase identified 4,253 company matches for rooftop unit replacement companies 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?

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

Which city has the most rooftop unit replacement companies?

Houston leads with 61 company records, followed by New York (56) and Dallas (30).

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 9,002 professional contacts with verified work emails tracked across these 4,253 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.

Ready to reach these companies? Verified emails and direct dials for all 4,253 rooftop unit replacement companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.