Company lists · Data refreshed October 2026

Top 25 District heating installation contractors based in the United States

Name: District heating installation contractors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 1,152 companies tracked

RevenueBase identified 1,152 company matches for district heating installation contractors associated with the United States as of October 2026 and tracks 10,374 professional contacts across them, including 3,132 with verified work emails. New York is the largest hub.

This list covers company matches for district heating installation contractors 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 October 11, 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 Oct 11, 2026 How this list was built

1,152Companies

10,374Contacts tracked

3,132Verified emails

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The 25 largest district heating installation contractors based in the United States

Ranked by team size

Top 25 of 1,152 company matches for district heating installation contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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	John W. Danforth Company	Exact match	Tonawanda, NY, United StatesHQ recorded Oct 11, 2026	501-1,000	410 contacts →
	Exact match “We are powered by the best people in the industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2	Weil-Mclain	Exact match	Burr Ridge, IL, United StatesHQ recorded Oct 11, 2026	501-1,000	294 contacts →
	Exact match “Weil-McLain® is a leading North American designer and manufacturer of hydronic comfort heating systems for residential, commercial and institutional buildings since 1881.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3	Vicinity Energy	Exact match	Boston, MA, United StatesHQ recorded Oct 11, 2026	501-1,000	289 contacts →
	Exact match “Vicinity Energy is a leading district energy company that owns and operates the largest portfolio of district energy systems nationwide, providing steam, hot water, and chilled…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4	GEM Incorporated	Exact match	Walbridge, OH, United StatesHQ recorded Oct 11, 2026	1,001-5,000	277 contacts →
	Exact match “Contractor for Life At GEM Inc, we’re experienced problem solvers with the insight, integrity and resources to see you through your toughest challenges.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5	Energy Air, INC	Exact match	Orlando, FL, United StatesHQ recorded Oct 11, 2026	201-500	219 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	R.F. Macdonald CO	Exact match	Hayward, CA, United StatesHQ recorded Oct 11, 2026	201-500	193 contacts →
	Exact match “R.F.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7	Marshalls INC	Exact match	Lynnwood, WA, United StatesHQ recorded Oct 11, 2026	n/a	179 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8	Hill York	Exact match	Dania Beach, FL, United StatesHQ recorded Oct 11, 2026	201-500	168 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 · Oct 11, 2026 · View company records in RevenueBase
9	Newcomb And Company	Exact match	Raleigh, NC, United StatesHQ recorded Oct 11, 2026	201-500	163 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 · Oct 11, 2026 · View company records in RevenueBase
10	SSM Industries, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Oct 11, 2026	201-500	134 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11	The K Company, INC	Exact match	Akron, OH, United StatesHQ recorded Oct 11, 2026	201-500	119 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 · Oct 11, 2026 · View company records in RevenueBase
12	Aerco International, INC	Exact match	Blauvelt, NY, United StatesHQ recorded Oct 11, 2026	51-200	115 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13	DRF Water Heating Solutions	Exact match	Plainfield, IL, United StatesHQ recorded Oct 11, 2026	51-200	107 contacts →
	Exact match “DRF Water Heating Solutions mission is to help as many people as we can.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Lawyer Mechanical Services	Exact match	Las Vegas, NV, United StatesHQ recorded Oct 11, 2026	51-200	107 contacts →
	Exact match “Lawyer Mechanical Services (LMS) creates and maintains comfort.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	Encon Heating & A C	Exact match	Stratford, CT, United StatesHQ recorded Oct 11, 2026	201-500	99 contacts →
	Exact match “ENCON Heating & A/C provides engineering, installation, and maintenance of HVAC systems for both commercial and custom residential applications.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	Atomatic Mechanical Services	Exact match	Arlington Heights, IL, United StatesHQ recorded Oct 11, 2026	51-200	98 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 · Oct 11, 2026 · View company records in RevenueBase
17	C&c Boiler Sales & Service, INC	Exact match	Charlotte, NC, United StatesHQ recorded Oct 11, 2026	51-200	93 contacts →
	Exact match “Founded in 1977, C&C Boiler Sales & Service, Inc.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18	Capstone Mechanical	Exact match	Waco, TX, United StatesHQ recorded Oct 11, 2026	51-200	91 contacts →
	Exact match “The Capstone Vision To be the preferred Mechanical Professionals in Central Texas The Capstone Mission To serve customers with legendary excellence The Capstone Core Values…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	Casa Mechanical Services	Exact match	Round Rock, TX, United StatesHQ recorded Oct 11, 2026	51-200	89 contacts →
	Exact match “CASA Mechanical is owned and operated by the W.G.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	AIR Mechanical INC	Exact match	Ham Lake, MN, United StatesHQ recorded Oct 11, 2026	51-200	85 contacts →
	Exact match “Creating Custom Comfort since 1985!” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21	HALCO	Exact match	Phelps, NY, United StatesHQ recorded Oct 11, 2026	51-200	85 contacts →
	Exact match “Halco is a highly accredited, national award-winning contractor that has been providing high-quality solutions to residential and commercial clients since 1984.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22	Elitaire	Exact match	Cincinnati, OH, United StatesHQ recorded Oct 11, 2026	11-50	78 contacts →
	Exact match “ElitAire - Technical experts in energy-optimized building solutions.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	ARC Mechanical	Exact match	Wilmington, MA, United StatesHQ recorded Oct 11, 2026	51-200	63 contacts →
	Exact match “Founded in 1996, ARC Mechanical offers a full range of commercial and industrial HVAC/R services, including 24/7 emergency response.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24	Dual Fuel	Exact match	Mount Vernon, NY, United StatesHQ recorded Oct 11, 2026	51-200	60 contacts →
	Exact match “Dual Fuel is a Licensed Master Plumber, General Contractor, NYSERDA Real Time Energy Management (RTEM) System and Service Provider, Coned C&I Partner, Coned Multifamily Partner…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	Tebarco Mechanical	Exact match	Alpharetta, GA, United StatesHQ recorded Oct 11, 2026	51-200	57 contacts →
	Exact match “Tebarco is a full service, licensed mechanical contractor & engineering firm.” Recorded in the RevenueBase company graph · Oct 11, 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 “district heating installation 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 1,152 district heating installation contractors based in the United States

See the full list, filter by size, metro and specialty, and access 3,132 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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District heating installation contractors based in the United States at a glance

As of Oct 11, 2026

30.2%Verified-email coverage

9.0Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · New York

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

582

11-50

424

51-200

109

201-500

501-1,000

1,001-5,000

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 1,152 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 “district heating installation 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. 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 3,132 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 October 11, 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 “district heating installation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many district heating installation contractors are there based in the United States?

RevenueBase identified 1,152 company matches for district heating installation contractors associated with the United States as of October 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?

John W. Danforth Company tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most district heating installation contractors?

New York leads with 18 company records, followed by Rochester (9) and Brooklyn (8).

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 3,132 professional contacts with verified work emails tracked across these 1,152 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 October 11, 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.