Company lists · Data refreshed November 2026

Top 25 Rooftop unit installation services based in the United States

Name: Rooftop unit installation services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 6,820 companies tracked

RevenueBase identified 6,820 company matches for rooftop unit installation services associated with the United States as of November 2026 and tracks 57,518 professional contacts across them, including 17,720 with verified work emails. Houston is the largest hub.

This list covers company matches for rooftop unit installation services 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

6,820Companies

57,518Contacts tracked

17,720Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest rooftop unit installation services based in the United States

Ranked by team size

Top 25 of 6,820 company matches for rooftop unit installation services 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Mckenney's, INC	Exact match	Atlanta, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,143 contacts →
	Exact match “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Cmta, INC	Exact match	Louisville, TN, United StatesHQ recorded Nov 6, 2026	501-1,000	1,049 contacts →
	Exact match “CMTA is part of Legence, a Nasdaq Listed company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Hoffman & Hoffman, INC	Exact match	Greensboro, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	469 contacts →
	Exact match “Since 1947, Hoffman & Hoffman, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	John W. Danforth Company	Exact match	Tonawanda, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	420 contacts →
	Exact match “We are powered by the best people in the industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	AIR Systems, INC	Exact match	San Jose, CA, United StatesHQ recorded Nov 6, 2026	201-500	364 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
6	United Mechanical	Exact match	San Jose, CA, United StatesHQ recorded Nov 6, 2026	201-500	350 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 · Nov 6, 2026 · View company records in RevenueBase
7	Habegger Corporation	Exact match	Cincinnati, OH, United StatesHQ recorded Nov 6, 2026	501-1,000	338 contacts →
	Exact match “The Habegger Corporation \| Complete HVAC Solutions since 1952.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Boland	Exact match	Gaithersburg, MD, United StatesHQ recorded Nov 6, 2026	201-500	333 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
9	Villara Building Systems	Exact match	Mcclellan Park, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	315 contacts →
	Exact match “Villara is one of the nation’s largest mechanical contractors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	The Arcticom Group	Exact match	Walnut Creek, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	269 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
11	Airtron Heating & AIR Conditioning	Exact match	Columbus, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	249 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
12	Pueblo Mechanical & Controls	Exact match	Phoenix, AZ, United StatesHQ recorded Nov 6, 2026	501-1,000	228 contacts →
	Exact match “Pueblo was founded in Arizona to achieve sustained and profitable growth by providing services that consistently satisfy the needs and expectations of its customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Energy Air, INC	Exact match	Orlando, FL, United StatesHQ recorded Nov 6, 2026	201-500	223 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Critchfield Mechanical, INC	Exact match	San Jose, CA, United StatesHQ recorded Nov 6, 2026	201-500	218 contacts →
	Exact match “Since 1977, Critchfield Mechanical, Inc.(CMI) has been one of the finest mechanical contractors in California, specializing in the design, fabrication and installation of heating…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Maxair Mechanical	Exact match	Marietta, GA, United StatesHQ recorded Nov 6, 2026	201-500	211 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
16	Star Service INC	Exact match	Baton Rouge, LA, United StatesHQ recorded Nov 6, 2026	201-500	210 contacts →
	Exact match “Our commitment to the commercial HVAC industry has remained unchanged since we began in 1952.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Haynes Mechanical Systems	Exact match	Greenwood Village, CO, United StatesHQ recorded Nov 6, 2026	201-500	208 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
18	Watsco, INC	Exact match	Coconut Grove, FL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	200 contacts →
	Exact match “Watsco Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Isaac Heating And AIR Conditioning	Exact match	Rochester, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	193 contacts →
	Exact match “Isaac Heating and Air Conditioning has been family-owned and operated in Rochester since 1945.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Emcor Services Aircond	Exact match	Smyrna, SC, United StatesHQ recorded Nov 6, 2026	201-500	191 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
21	Hill York	Exact match	Dania Beach, FL, United StatesHQ recorded Nov 6, 2026	201-500	177 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 · Nov 6, 2026 · View company records in RevenueBase
22	American Mechanical Services	Exact match	Laurel, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	175 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
23	Newcomb And Company	Exact match	Raleigh, NC, United StatesHQ recorded Nov 6, 2026	201-500	174 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
24	Marshalls INC	Exact match	Lynnwood, WA, United StatesHQ recorded Nov 6, 2026	n/a	173 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Premistar	Exact match	Deerfield, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	171 contacts →
	Exact match “PremiStar, formerly Reedy Industries, operates a footprint of 52 commercial HVAC, building automation and plumbing branches across 16 states.” Recorded in the RevenueBase company graph · Nov 6, 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 “rooftop unit installation services”. 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 6,820 rooftop unit installation services based in the United States

See the full list, filter by size, metro and specialty, and access 17,720 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Rooftop unit installation services based in the United States at a glance

As of Nov 6, 2026

30.8%Verified-email coverage

8.4Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · Houston

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

3,208

11-50

2,734

51-200

641

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 6,820 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 installation services” 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 17,720 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.

Rooftop unit installation services by metro

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 installation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rooftop unit installation services are there based in the United States?

RevenueBase identified 6,820 company matches for rooftop unit installation services 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?

Mckenney's, 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 installation services?

Houston leads with 97 company records, followed by New York (83) and San Antonio (48).

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 17,720 professional contacts with verified work emails tracked across these 6,820 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 6,820 rooftop unit installation services based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Rooftop unit installation services by geography

Browse the directory

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.