Company lists · Data refreshed November 2026

Top 25 Residential heating contractors worldwide

Name: Residential heating contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 20,069 companies tracked

RevenueBase identified 20,069 company matches for residential heating contractors worldwide as of November 2026 and tracks 148,638 professional contacts across them, including 38,539 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for residential heating contractors worldwide, 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. Country and city lists for residential heating contractors follow the table.

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

20,069Companies

148,638Contacts tracked

38,539Verified emails

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The 25 largest residential heating contractors worldwide

Ranked by team size

Top 25 of 20,069 company matches for residential heating contractors worldwide, 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	American Residential Services	Exact match	Memphis, NC, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,013 contacts →
	Exact match “American Residential Services (ARS®/Rescue Rooter®) is one of the nation’s largest providers of heating, air conditioning, indoor air quality, plumbing, drain cleaning…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Reliance Home Comfort	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	1,001-5,000	1,656 contacts →
	Exact match “As a leader in home services and energy efficient solutions for over 60 years, Reliance Home Comfort® (Reliance) is committed to being the Destination of Choice by delivering…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Service Experts	Exact match	Richardson, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,552 contacts →
	Exact match “Service Experts is North America's leading HVAC, Plumbing & Electrical company with 75+ locations nationwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Bravida Danmark A S	Exact match	Brøndby, DenmarkHQ recorded Nov 6, 2026	1,001-5,000	1,385 contacts →
	Exact match “Bravida Danmark er blandt landets største tekniske installations- og servicevirksomheder med over medarbejdere i byer landet over, og vi er en arbejdsplads, der har plads til alle.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Enercare INC	Exact match	Markham, ON, CanadaHQ recorded Nov 6, 2026	1,001-5,000	1,082 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	LEE Company	Exact match	Franklin, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,067 contacts →
	Exact match “Since 1944, we’ve been family-owned and family-focused, built on values that last and a mission that matters.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Proxiserve	Exact match	Levallois-perret, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,054 contacts →
	Exact match “A major player in the energy transition and leader in home services, PROXISERVE provides its customers with innovative solutions enabling them to reduce their energy consumption…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Ventec S.A	Exact match	Casablanca, MoroccoHQ recorded Nov 6, 2026	1,001-5,000	1,010 contacts →
	Exact match “La Société Ventec a été créée au Maroc en 1949 par Monsieur Albert MARQUET Président Directeur Général de Ventec en France.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Bravida Norge AS	Exact match	Oslo, NorwayHQ recorded Nov 6, 2026	1,001-5,000	934 contacts →
	Exact match “Bravida gir bygninger liv.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	BAXI	Exact match	Warwick, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	865 contacts →
	Exact match “We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Feenstra	Exact match	Lelystad, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	813 contacts →
	Exact match “Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	HTS Engineering	Exact match	Toronto, TX, CanadaHQ recorded Nov 6, 2026	1,001-5,000	748 contacts →
	Exact match “Your success is our success.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Coolsys	Exact match	Brea, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	741 contacts →
	Exact match “CoolSys solves the most complex challenges in refrigeration, air conditioning, heating, engineering, and energy management.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	ONE Hour Heating & AIR Conditioning	Exact match	Phoenix, AZ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	573 contacts →
	Exact match “When homeowners want a reliable heater or air conditioning system that they don’t have to think about, they call One Hour Heating & Air Conditioning.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Horizon Services, LLC	Exact match	Wilmington, MD, United StatesHQ recorded Nov 6, 2026	501-1,000	472 contacts →
	Exact match “Horizon Services is the premier heating, air conditioning, plumbing, drain cleaning and sewer services company in Delaware (New Castle County & Kent County), Pennsylvania…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	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
17	Ferroli Group	Exact match	San Bonifacio, ItalyHQ recorded Nov 6, 2026	1,001-5,000	442 contacts →
	Exact match “Feel Well.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Aire Serv Heating And AIR Conditioning	Exact match	Waco, TX, United StatesHQ recorded Nov 6, 2026	201-500	389 contacts →
	Exact match “For consumer services visit To discover more about franchise opportunities with Aire Serv® in your area visit Established in 1992, Aire Serv® is a global franchise organization…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Hiller Plumbing, Heating, Cooling & Electrical	Exact match	Nashville, TN, United StatesHQ recorded Nov 6, 2026	501-1,000	383 contacts →
	Exact match “Hiller provides residential and commercial service and repair throughout Tennessee, Southern Kentucky, Northern Alabama, Southeastern Arkansas, Northeastern Mississippi, Northern…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Iserba	Exact match	Beynost, FranceHQ recorded Nov 6, 2026	501-1,000	377 contacts →
	Exact match “ISERBA est un acteur national majeur au service de l'habitat social, créée en 1978 par la famille DEGORCE.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Logista Hometech	Exact match	Arras, FranceHQ recorded Nov 6, 2026	1,001-5,000	373 contacts →
	Exact match “Spécialiste de la maintenance immobilière, nous entretenons et dépannons les équipements de chauffage, VMC, plomberie, sanitaire, climatisation… pour les bailleurs sociaux et les…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Brady Services	Exact match	Greensboro, NC, United StatesHQ recorded Nov 6, 2026	501-1,000	358 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 · Nov 6, 2026 · View company records in RevenueBase
23	Havtech	Exact match	Columbia, VA, United StatesHQ recorded Nov 6, 2026	201-500	351 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 · Nov 6, 2026 · View company records in RevenueBase
24	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
25	Entech Sales & Service, LLC	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	201-500	343 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 · 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 “residential heating contractors”. 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 20,069 residential heating contractors worldwide

See the full list, filter by size, metro and specialty, and access 38,539 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Residential heating contractors worldwide at a glance

As of Nov 6, 2026

25.9%Verified-email coverage

7.4Average contacts per company

1-10Median size (employees)

0.6%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

9,973

11-50

7,354

51-200

1,645

201-500

241

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for residential heating contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “residential heating contractors” 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. 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 38,539 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.

Residential heating contractors by location

62 lists · largest first

Every Residential heating contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “residential heating contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many residential heating contractors are there worldwide?

RevenueBase identified 20,069 company matches for residential heating contractors worldwide 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?

American Residential Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most residential heating contractors?

The United States leads with 9,961 companies, followed by Canada (1,314) and France (1,228). Every residential heating contractors list by country and city is linked on this page.

Which city has the most residential heating contractors?

London leads with 117 company records, followed by Houston (108) and New York (97).

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 38,539 professional contacts with verified work emails tracked across these 20,069 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.