Company lists · Data refreshed September 2026

Top 25 District energy companies based in the United States

Name: District energy 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 16, 2026 53 companies tracked

RevenueBase identified 53 district energy companies headquartered in the United States as of September 2026 and tracks 1,368 professional contacts across them, including 790 with verified work emails. New York is the largest hub.

This list covers district energy 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 16, 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 16, 2026 86% judged on-target in blind review

53Companies

1,368Contacts tracked

790Verified emails

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The 25 largest district energy companies based in the United States

Ranked by team size

Top 25 of 53 district energy companies based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to district energy 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	Vicinity Energy	Strong evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	501-1,000	286 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
2	Noco Energy Corp	Partial evidence	Tonawanda, NY, United StatesHQ checked Sep 16, 2026	201-500	176 contacts →
	Partial evidence “With a rich history spanning more than 90 years, NOCO is a leading full-service energy company servicing customers across Upstate New York.” Source: RevenueBase Database · checked Sep 16, 2026
3	Cordia	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 16, 2026	201-500	161 contacts →
	Partial evidence “Cordia is a sustainable energy solutions provider.” Source: RevenueBase Database · checked Sep 16, 2026
4	Scale Microgrids	Partial evidence	Ridgewood, NJ, United StatesHQ checked Sep 16, 2026	51-200	119 contacts →
	Partial evidence “The future of humanity is dependent on making our energy infrastructure cleaner, more affordable, and more resilient.” Source: RevenueBase Database · checked Sep 16, 2026
5	Centrio	Partial evidence	Houston, CO, United StatesHQ checked Sep 16, 2026	201-500	112 contacts →
	Partial evidence “CenTrio Energy is the leader in providing innovative energy solutions for our clients.” Source: RevenueBase Database · checked Sep 16, 2026
6	Thermal Energy Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	51-200	50 contacts →
	Partial evidence “Houston-based Thermal Energy Corporation (TECO) is the energy behind what’s next on the campus of the Texas Medical Center (TMC), the world’s largest medical city.” Source: RevenueBase Database · checked Sep 16, 2026
7	TEAL	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	51-200	41 contacts →
	Indirect evidence “TEAL is a unique business solution that provides owners, developers, and property managers with innovative, vertically-integrated managed central plant solutions.” Source: RevenueBase Database · checked Sep 16, 2026
8	Detroit Thermal, LLC	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 16, 2026	11-50	37 contacts →
	Indirect evidence “Detroit Thermal, L.L.C.” Source: RevenueBase Database · checked Sep 16, 2026
9	Burton Energy Group	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 16, 2026	11-50	36 contacts →
	Partial evidence “Burton Energy Group is a privately held, independent company providing energy management services for commercial businesses with multi-site, geographically diverse facilities.” Source: RevenueBase Database · checked Sep 16, 2026
10	Tycho Energy	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 16, 2026	11-50	25 contacts →
	Partial evidence “Tycho Energy started in 2017 to serve the needs of homeowners and companies who want to be in a better situation when it comes to energy.” Source: RevenueBase Database · checked Sep 16, 2026
11	International District Energy Association	Strong evidence	Westborough, MA, United StatesHQ checked Sep 16, 2026	1-10	16 contacts →
	Strong evidence “The International District Energy Association (IDEA) is a nonprofit industry association that is committed to building a faster path to net zero by advancing district energy, an…” Source: RevenueBase Database · checked Sep 16, 2026
12	RRH Energy Services	Partial evidence	New York, NY, United StatesHQ checked Sep 16, 2026	11-50	10 contacts →
	Partial evidence “About Us RRH Energy Services is a New York based energy services company operating businesses across several U.S states.” Source: RevenueBase Database · checked Sep 16, 2026
13	Rochester District Heating Cooperative	Partial evidence	Rochester, NY, United StatesHQ checked Sep 16, 2026	11-50	8 contacts →
	Partial evidence “At Rochester District Heating (RDH) we are committed to the Rochester community, producing and delivering reliable, high quality steam since 1985.” Source: RevenueBase Database · checked Sep 16, 2026
14	Ashley Energy	Partial evidence	St Louis, MO, United StatesHQ checked Sep 16, 2026	11-50	6 contacts →
	Partial evidence “Ashley Energy delivers clean, reliable and cost-effective energy to a range of businesses and buildings throughout downtown St.” Source: RevenueBase Database · checked Sep 16, 2026
15	Hartford Steam Company	Indirect evidence	Hartford, CT, United StatesHQ checked Sep 16, 2026	11-50	6 contacts →
	Indirect evidence “The Hartford Steam Company heats and cools some of Hartford’s most prominent addresses – from the XL Center to Traveler’s Tower to Hartford Hospital.” Source: RevenueBase Database · checked Sep 16, 2026
16	EC Power INC	Indirect evidence	Smithfield, RI, United StatesHQ checked Sep 16, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
17	FS Energy, LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 16, 2026	11-50	5 contacts →
	Partial evidence “FS Energy, LLC, a subsidiary of FirstService Corporation, takes a unique, holistic approach to energy management by applying state-of-the-art data analysis to evaluate a…” Source: RevenueBase Database · checked Sep 16, 2026
18	Lumeco Energy	Partial evidence	Laurel, MD, United StatesHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “Lumeco Energy is a leading energy services company providing energy efficient solutions for residential and commercial customers in Delaware, Baltimore, Washington DC, and the DC…” Source: RevenueBase Database · checked Sep 16, 2026
19	Energy Savers, INC	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 16, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
20	Clearway Community Energy	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 16, 2026	201-500	4 contacts →
	Partial evidence “Clearway Community Energy is a comprehensive energy solutions provider.” Source: RevenueBase Database · checked Sep 16, 2026
21	Djoule LLC	Strong evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1-10	4 contacts →
	Strong evidence “dJoule (pronounced "jewel") sparks investment in ambitious district energy solutions for industry, institutions, corporations, and campuses that are economically and strategically…” Source: RevenueBase Database · checked Sep 16, 2026
22	Cleveland Thermal Energy Corporation	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 16, 2026	1-10	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
23	US Energy Distribution, LLC	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 16, 2026	51-200	3 contacts →
	Strong evidence “US ENERGY DISTRIBUTION, LLC is a company based out of 79 W PACES FERRY RD, Atlanta, Georgia, United States.” Source: RevenueBase Database · checked Sep 16, 2026
24	Twin City Energy Services, INC	Indirect evidence	Bloomington, IL, United StatesHQ checked Sep 16, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
25	Telgen	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial evidence “Telgen is an Indianapolis-based energy company focusing on the cogeneration of heat and power for industrial and commercial facilities.” Source: RevenueBase Database · checked Sep 16, 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: district energy 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 district energy companies.
Partial evidence: Its own public description names part of district energy companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name district energy 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 53 district energy companies based in the United States

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District energy companies based in the United States at a glance

As of Sep 16, 2026

57.7%Verified-email coverage

25.8Average contacts per company

11-50Median size (employees)

7.5%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 53 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 district energy 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 “district energy 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 district energy 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 district energy 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, 790 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 16, 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.

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 district energy 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 district energy companies are there based in the United States?

RevenueBase identified 53 district energy 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?

Vicinity Energy, headquartered in Boston, tops this list with the largest team on record.

Which city has the most district energy companies?

New York leads with 4 headquartered companies, followed by Houston (3) and Phoenix (3).

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 790 verified decision-maker contacts tracked across these 53 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 16, 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.