Company lists · Data refreshed October 2026

Top 25 Energy efficient heaters suppliers based in the United States

Name: Energy efficient heaters suppliers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 25, 2026 449 companies tracked

RevenueBase identified 449 company matches for energy efficient heaters suppliers associated with the United States as of October 2026 and tracks 4,974 professional contacts across them, including 1,244 with verified work emails. Houston is the largest hub.

This list covers company matches for energy efficient heaters suppliers 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 25, 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 25, 2026 How this list was built

449Companies

4,974Contacts tracked

1,244Verified emails

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The 25 largest energy efficient heaters suppliers based in the United States

Ranked by team size

Top 25 of 449 company matches for energy efficient heaters suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 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	Watsco, INC	Exact match	Coconut Grove, FL, United StatesHQ recorded Oct 25, 2026	5,001-10,000	196 contacts →
	Exact match “Watsco Inc.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
2	Marshalls INC	Exact match	Lynnwood, WA, United StatesHQ recorded Oct 25, 2026	n/a	179 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3	Hill York	Exact match	Dania Beach, FL, United StatesHQ recorded Oct 25, 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 25, 2026 · View company records in RevenueBase
4	Marley Engineered Products	Exact match	Bennettsville, SC, United StatesHQ recorded Oct 25, 2026	201-500	168 contacts →
	Exact match “Marley Engineered Products® draws upon a long history of providing reliable comfort heating and ventilation solutions.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5	Aerco International, INC	Exact match	Blauvelt, NY, United StatesHQ recorded Oct 25, 2026	51-200	115 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
6	The Chill Brothers	Exact match	Spring, TX, United StatesHQ recorded Oct 25, 2026	51-200	102 contacts →
	Exact match “Based in Houston Texas, The Chill Brothers is an HVAC distribution and service business focused on residential and commercial customers in the Greater Houston area.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7	C&c Boiler Sales & Service, INC	Exact match	Charlotte, NC, United StatesHQ recorded Oct 25, 2026	51-200	93 contacts →
	Exact match “Founded in 1977, C&C Boiler Sales & Service, Inc.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8	King Electrical Mfg. CO	Exact match	Seattle, WA, United StatesHQ recorded Oct 25, 2026	51-200	80 contacts →
	Exact match “Why King?” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9	HTP Comfort Solutions	Exact match	New Bedford, MA, United StatesHQ recorded Oct 25, 2026	51-200	76 contacts →
	Exact match “Established in 1974, HTP Comfort Solutions LLC is a full-fledged manufacturer on the cutting edge of energy efficient space and water heating technology.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10	Alpine Home AIR	Exact match	Chicago, IL, United StatesHQ recorded Oct 25, 2026	51-200	68 contacts →
	Exact match “Founded in 2002, Alpine is a team of forward-thinking innovators working to provide intelligent heating and cooling solutions to homeowners in a way that:* Leads Americans away…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11	Tecogen INC	Exact match	North Billerica, MA, United StatesHQ recorded Oct 25, 2026	51-200	67 contacts →
	Exact match “Tecogen is a leading manufacturer of Combined Heat and Power products including natural gas engine-driven cogeneration, air conditioning systems and high efficiency water heaters…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12	Warmboard INC	Exact match	Scotts Valley, CA, United StatesHQ recorded Oct 25, 2026	51-200	64 contacts →
	Exact match “Warmboard, Inc.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13	Brennan Heating & AIR Conditioning	Exact match	Seattle, WA, United StatesHQ recorded Oct 25, 2026	201-500	64 contacts →
	Exact match “Since 1987, Brennan Heating & Air Conditioning has served tens of thousands of satisfied customers throughout the Puget Sound region.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14	Tempo INC	Exact match	Irving, TX, United StatesHQ recorded Oct 25, 2026	201-500	63 contacts →
	Exact match “Tempo Air has proudly served the cooling and heating needs of the Dallas-Fort Worth residential community since 1966.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15	Roscoe Brown, INC	Exact match	Murfreesboro, TN, United StatesHQ recorded Oct 25, 2026	51-200	61 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16	Matrix HG Inc. Matrix	Exact match	Concord, CA, United StatesHQ recorded Oct 25, 2026	201-500	51 contacts →
	Exact match “DESIGN + BUILD Matrix HG is a commercial HVAC company serving the greater San Francisco Bay Area.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17	D&b Building Solutions	Exact match	Bloomfield, NJ, United StatesHQ recorded Oct 25, 2026	11-50	50 contacts →
	Exact match “D&B Building Solutions provides world class heating, ventilating, air conditioning and power generation equipment from leading vendors, including Daikin, Alliance Air Products…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18	Valiant Home & Energy	Exact match	Waterbury, CT, United StatesHQ recorded Oct 25, 2026	201-500	49 contacts →
	Exact match “Formerly BantamWesson, Valiant Energy Solutions is an energy solutions provider that enables homeowners and organizations to achieve significant energy and cost savings.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19	Campbell INC	Exact match	Northwood, OH, United StatesHQ recorded Oct 25, 2026	51-200	48 contacts →
	Exact match “We are a full service HVAC contractor employing a highly skilled team of professionals trained in all aspects from proactive preventive maintenance through design/build and…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20	Modern Heating & AIR Conditioning	Exact match	Minneapolis, MN, United StatesHQ recorded Oct 25, 2026	51-200	45 contacts →
	Exact match “Modern Heating & Air Conditioning specializes in providing energy efficient mechanical services to keep energy costs under control and create more comfortable environments for…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21	Greens Energy Services, INC	Exact match	Orlando, FL, United StatesHQ recorded Oct 25, 2026	51-200	43 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22	Belred Heating, Cooling, Plumbing & Electrical	Exact match	Woodinville, WA, United StatesHQ recorded Oct 25, 2026	51-200	43 contacts →
	Exact match “Most homeowners juggle four different contractors for their home, one for HVAC, one for plumbing, one for electrical, one for emergencies.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23	Fireplace Warehouse	Exact match	Denver, CO, United StatesHQ recorded Oct 25, 2026	51-200	42 contacts →
	Exact match “The Premiere Fireplace Store Welcome to Fireplace Warehouse ETC, – Providing Alternate Home Heating Solutions Since 1998 Whether you’re looking to augment your home’s heat sources…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24	FORGE	Exact match	Newton, MA, United StatesHQ recorded Oct 25, 2026	51-200	40 contacts →
	Exact match “Forge makes home comfort simple and sustainable with energy-efficient heat pump installations.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25	Endless Energy	Exact match	Marlborough, MA, United StatesHQ recorded Oct 25, 2026	51-200	40 contacts →
	Exact match “Endless Energy is a locally owned energy efficiency and HVAC company with over 40 years of service to our community.” Recorded in the RevenueBase company graph · Oct 25, 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 “energy efficient heaters suppliers”. 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 449 energy efficient heaters suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 1,244 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy efficient heaters suppliers based in the United States at a glance

As of Oct 25, 2026

25.0%Verified-email coverage

11.1Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Houston

Oct 25, 2026Page data refreshed

Companies by employee count

1-10

195

11-50

171

51-200

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 449 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 “energy efficient heaters suppliers” 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 1,244 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 25, 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 “energy efficient heaters suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficient heaters suppliers are there based in the United States?

RevenueBase identified 449 company matches for energy efficient heaters suppliers 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?

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

Which city has the most energy efficient heaters suppliers?

Houston leads with 6 company records, followed by New York (6) and Chicago (5).

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 1,244 professional contacts with verified work emails tracked across these 449 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 25, 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.