Company lists · Data refreshed September 2026

Top 25 Hvac customer portal software companies based in the United States

Name: Hvac customer portal software 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 28, 2026 2,924 companies tracked

RevenueBase identified 2,924 hvac customer portal software companies headquartered in the United States as of September 2026 and tracks 28,261 professional contacts across them, including 9,449 with verified work emails. New York is the largest hub.

This list covers hvac customer portal software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

2,924Companies

28,261Contacts tracked

9,449Verified emails

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The 25 largest hvac customer portal software companies based in the United States

Ranked by team size

Top 25 of 2,924 hvac customer portal software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to hvac customer portal software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Johnstone Supply	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,664 contacts →
	Indirect evidence “Making it easier for HVACR contractors to do business.” Source: RevenueBase Database · checked Sep 28, 2026
2	Housecall PRO	Indirect evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,193 contacts →
	Indirect evidence “Housecall Pro was founded in 2013 with one mission: to help home service professionals succeed.” Source: RevenueBase Database · checked Sep 28, 2026
3	Texas Airsystems	Partial evidence	Irving, TX, United StatesHQ checked Sep 28, 2026	201-500	523 contacts →
	Partial evidence “In business for over 45 years, Texas AirSystems has grown to be recognized as one of the premier partners for commercial HVAC solutions in Texas, boasting over 500 associates…” Source: RevenueBase Database · checked Sep 28, 2026
4	Havtech	Partial evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	201-500	333 contacts →
	Partial evidence “Havtech delivers innovative commercial and industrial HVAC solutions across Maryland, Washington, D.C, Virginia, Pennsylvania, and West Virginia.” Source: RevenueBase Database · checked Sep 28, 2026
5	Gustave A. Larson	Indirect evidence	Pewaukee, WI, United StatesHQ checked Sep 28, 2026	201-500	324 contacts →
	Indirect evidence “Gustave A.” Source: RevenueBase Database · checked Sep 28, 2026
6	Boland	Partial evidence	Gaithersburg, MD, United StatesHQ checked Sep 28, 2026	201-500	323 contacts →
	Partial evidence “Boland is the leading commercial HVAC systems, services, and building energy solutions provider in the DC metro area.” Source: RevenueBase Database · checked Sep 28, 2026
7	Contractor	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 28, 2026	n/a	274 contacts →
	Indirect evidence “At Contractor+, we are dedicated to empowering field service contractors by streamlining operations, enhancing client relationships, and driving business growth.” Source: RevenueBase Database · checked Sep 28, 2026
8	The Arcticom Group	Partial evidence	Walnut Creek, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	259 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
9	Servicetrade	Partial evidence	Durham, NC, United StatesHQ checked Sep 28, 2026	201-500	242 contacts →
	Partial evidence “ServiceTrade partners with commercial service contractors to deliver technology that enhances technician productivity, improves customer experiences, and drives scalable growth.” Source: RevenueBase Database · checked Sep 28, 2026
10	Tolin Mechanical Systems	Partial evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	201-500	220 contacts →
	Partial evidence “Tolin Mechanical is a Leading Energy & Commercial HVAC Services Company.” Source: RevenueBase Database · checked Sep 28, 2026
11	Airtron Heating & AIR Conditioning	Partial evidence	Columbus, OH, United StatesHQ checked Sep 28, 2026	1,001-5,000	214 contacts →
	Partial evidence “Airtron has developed itself into one of the leading heating, ventilation, and air conditioning (HVAC) providers.” Source: RevenueBase Database · checked Sep 28, 2026
12	Energy Air, INC	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 28, 2026	201-500	213 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
13	Gardiner	Indirect evidence	Solon, OH, United StatesHQ checked Sep 28, 2026	201-500	205 contacts →
	Indirect evidence “At Gardiner, we've gotten used to clients being shocked by everything we can do to improve a building.” Source: RevenueBase Database · checked Sep 28, 2026
14	US AIR Conditioning Distributors	Indirect evidence	City Of Industry, CA, United StatesHQ checked Sep 28, 2026	201-500	183 contacts →
	Indirect evidence “US Air Conditioning Distributors, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
15	Fidelity Building Services Group	Partial evidence	Hunt Valley, MD, United StatesHQ checked Sep 28, 2026	1,001-5,000	171 contacts →
	Partial evidence “Fidelity Building Services Group (Fidelity) is one of the nation’s leading providers of HVAC/Mechanical Services, Building Automation, Emergency Power, and Energy Solutions…” Source: RevenueBase Database · checked Sep 28, 2026
16	American Mechanical Services	Partial evidence	Laurel, MD, United StatesHQ checked Sep 28, 2026	501-1,000	169 contacts →
	Partial evidence “AMS is one of the nation’s leading providers of commercial heating, ventilation, and air conditioning (HVAC) maintenance, repair, replacement, and new equipment installation.” Source: RevenueBase Database · checked Sep 28, 2026
17	Trane AIR Conditioning	Indirect evidence	Us, United StatesHQ checked Sep 28, 2026	1,001-5,000	164 contacts →
	Indirect evidence “Trane, the world leader in creating and sustaining safe, comfortable and energy efficient environments - improves the performance of homes and buildings around the world.” Source: RevenueBase Database · checked Sep 28, 2026
18	Engineered Cooling Services	Partial evidence	Pensacola, FL, United StatesHQ checked Sep 28, 2026	201-500	160 contacts →
	Partial evidence “Engineered Cooling Services is the Southeast’s leading energy and HVAC services company headquartered in Pensacola, FL with local offices in Mobile, Montgomery, Birmingham…” Source: RevenueBase Database · checked Sep 28, 2026
19	Premistar	Partial evidence	Deerfield, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	159 contacts →
	Partial evidence “PremiStar, formerly Reedy Industries, operates a footprint of 52 commercial HVAC, building automation and plumbing branches across 16 states.” Source: RevenueBase Database · checked Sep 28, 2026
20	Heating And Cooling Supply	Partial evidence	San Diego, United StatesHQ checked Sep 28, 2026	51-200	140 contacts →
	Partial evidence “Since 1960, Heating and Cooling Supply has developed and flourished into the HVAC distribution powerhouse it is today.” Source: RevenueBase Database · checked Sep 28, 2026
21	Motili	Partial evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	51-200	135 contacts →
	Partial evidence “Motili offers scalable turnkey HVAC technology, products, and solutions for residential and commercial properties large and small, across the United States.” Source: RevenueBase Database · checked Sep 28, 2026
22	Donnelly Mechanical Corporation	Partial evidence	Queens Village, NY, United StatesHQ checked Sep 28, 2026	201-500	130 contacts →
	Partial evidence “Donnelly Mechanical is New York City’s premier provider of innovative commercial HVAC service, maintenance and construction.” Source: RevenueBase Database · checked Sep 28, 2026
23	Uptick	Strong evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	51-200	126 contacts →
	Strong evidence “Uptick is the leading software provider to fire, security, and HVAC maintenance companies.” Source: RevenueBase Database · checked Sep 28, 2026
24	Team AIR Distributing	Strong evidence	Nashville, TN, United StatesHQ checked Sep 28, 2026	201-500	123 contacts →
	Strong evidence “As a leader in the heating and air conditioning distribution business, we serve our customers by distributing HVAC products with excellence.” Source: RevenueBase Database · checked Sep 28, 2026
25	Engineering Excellence	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 28, 2026	51-200	121 contacts →
	Indirect evidence “National HVACR Solutions.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: hvac customer portal software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names hvac customer portal software companies.
Partial evidence: Its own public description names part of hvac customer portal software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hvac customer portal software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,924 hvac customer portal software companies based in the United States

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Hvac customer portal software companies based in the United States at a glance

As of Sep 28, 2026

33.4%Verified-email coverage

9.7Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,458

11-50

1,101

51-200

264

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 2,924 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among hvac customer portal software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “hvac customer portal software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names hvac customer portal software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among hvac customer portal software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 9,449 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Hvac customer portal software companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names hvac customer portal software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many hvac customer portal software companies are there based in the United States?

RevenueBase identified 2,924 hvac customer portal software companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Johnstone Supply, headquartered in Portland, tops this list with the largest team on record.

Which city has the most hvac customer portal software companies?

New York leads with 40 headquartered companies, followed by Houston (38) and San Antonio (26).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 9,449 verified decision-maker contacts tracked across these 2,924 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.