Company lists · Data refreshed November 2026

Top 25 Sustainable heating system installers based in the United States

RevenueBase identified 652 company matches for sustainable heating system installers associated with the United States as of November 2026 and tracks 4,955 professional contacts across them, including 1,287 with verified work emails. New York is the largest hub.

This list covers company matches for sustainable heating system installers 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
652Companies
4,955Contacts tracked
1,287Verified emails
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The 25 largest sustainable heating system installers based in the United States

Ranked by team size
Top 25 of 652 company matches for sustainable heating system installers 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMount Kisco, NY, United StatesHQ recorded Nov 6, 202651-200124 contacts →

Exact match

“Dandelion Energy is the nation’s leading residential geothermal provider, on a mission to make the world’s most efficient heating and cooling technology accessible to everyone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchArmonk, NY, United StatesHQ recorded Nov 6, 202651-200111 contacts →

Exact match

“Brightcore Energy is a leading renewable energy solutions provider serving commercial, institutional, and government clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCharlotte, NC, United StatesHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“Founded in 1977, C&C Boiler Sales & Service, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWinter Park, FL, United StatesHQ recorded Nov 6, 2026501-1,00093 contacts →

Exact match

“One Stop Cooling & Heating has been providing exceptional installations and service for 26 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRound Rock, TX, United StatesHQ recorded Nov 6, 202651-20092 contacts →

Exact match

“CASA Mechanical is owned and operated by the W.G.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchPhelps, NY, United StatesHQ recorded Nov 6, 202651-20089 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHam Lake, MN, United StatesHQ recorded Nov 6, 202651-20087 contacts →

Exact match

“Creating Custom Comfort since 1985!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNew Bedford, MA, United StatesHQ recorded Nov 6, 202651-20077 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBozeman, WY, United StatesHQ recorded Nov 6, 2026201-50076 contacts →

Exact match

“Energy 1 designs and installs state-of-the-art Mechanical, Electrical, and Plumbing systems that utilize renewable technologies and deliver efficiency, elegance, and legacies our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchScotts Valley, CA, United StatesHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“Warmboard, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMurfreesboro, TN, United StatesHQ recorded Nov 6, 202651-20063 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Gradient is transforming home comfort with innovative heat pump technology that reduces carbon emissions without compromising performance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchRancho Cordova, CA, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“When you turn to us for your homes' energy efficient upgrade, you can take comfort in knowing you've made the right choice for your Plumbing, Electrical, Solar or Heating and Air…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBoston, MA, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Team Sunshine is New England's Premier Solar Installation Company and has been helping New England Homeowners transition from fossil fuels to renewable energy since 2019.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMarlborough, MA, United StatesHQ recorded Nov 6, 202651-20042 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNew Orleans, LA, United StatesHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Steam Solutions keeps commercial and industrial facilities operating at peak performance through its specialized knowledge of steam systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNewton, MA, United StatesHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“Forge makes home comfort simple and sustainable with energy-efficient heat pump installations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchFort Collins, CO, United StatesHQ recorded Nov 6, 202651-20036 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMemphis, TN, United StatesHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Power Equipment Company (Power Equipment of Memphis) specializes in energy systems and heat generating products, providing the knowledge, products, services and supplies necessary…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBurke, TX, United StatesHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“When it comes to top notch customer service and keeping your company in compliance and the engery bills low, McWilliams is here to make it happen for you!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchKirkland, WA, United StatesHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Cardinal Heating & Air has been in business since 1991, and every service call we take or installation that we perform is more than a number to us.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSan Antonio, TX, United StatesHQ recorded Nov 6, 202611-5033 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchRockland, MA, United StatesHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“Celebrating 75 years in service in 2026!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAtascadero, CA, United StatesHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Solarponics is the Central Coast's go-to renewable energy company, helping residences achieve energy independence for over 45 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchDedham, MA, United StatesHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“MacFarlane Energy's goal is to build long-term relationships with customers who want outstanding customer service and fair treatment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 652 sustainable heating system installers based in the United States

See the full list, filter by size, metro and specialty, and access 1,287 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainable heating system installers based in the United States at a glance

As of Nov 6, 2026
26.0%Verified-email coverage
7.6Average contacts per company
1-10Median size (employees)
1.4%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
340
11-50
242
51-200
50
201-500
4
501-1,000
3
10001+
2

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 652 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 “sustainable heating system installers” 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 1,287 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.

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

How many sustainable heating system installers are there based in the United States?

RevenueBase identified 652 company matches for sustainable heating system installers 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?

Dandelion Energy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most sustainable heating system installers?

New York leads with 9 company records, followed by Houston (7) and Rochester (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 1,287 professional contacts with verified work emails tracked across these 652 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.