Company lists · Data refreshed September 2026

Top 22 Trigeneration system providers based in the United States

RevenueBase identified 50 trigeneration system providers headquartered in the United States as of September 2026 and tracks 738 professional contacts across them, including 236 with verified work emails. Houston is the largest hub.

This list covers trigeneration system providers 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 22, 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 22, 2026 86% judged on-target in blind review
50Companies
738Contacts tracked
236Verified emails
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The 22 largest trigeneration system providers based in the United States

Ranked by team size
Top 22 of 50 trigeneration system providers based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to trigeneration system providers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNorth Billerica, MA, United StatesHQ checked Sep 22, 202651-20064 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceBristol, PA, United StatesHQ checked Sep 22, 202651-20061 contacts →

Partial evidence

“Northeast-Western Energy Systems USA, LLC ("NES-WES") provide reliable, Resilient and Renewable Power Solutions.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceGlendale, WI, United StatesHQ checked Sep 22, 202651-20031 contacts →

Indirect evidence

“Clarke Energy USA, a Rehlko Company, delivers advanced energy solutions that support resilience, efficiency, and sustainability across critical sectors.”

Source: RevenueBase Database · checked Sep 22, 2026
4Partial evidenceAlexandria, VA, United StatesHQ checked Sep 22, 202611-5030 contacts →

Partial evidence

“Enginuity Power Systems is the leading innovator in highly efficient Combined Heat and Power (CHP) systems, which allow consumers to live their lives more sustainability…”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceWayne, PA, United StatesHQ checked Sep 22, 202611-5025 contacts →

Indirect evidence

“E-Finity Distributed Generation is the exclusive Mid-Atlantic and Southeast distributor for Capstone Turbine and is an active member of the distributed generation and combined…”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceTraverse City, MD, United StatesHQ checked Sep 22, 202611-5025 contacts →

Indirect evidence

“Takanock delivers the power data centers require, permanent, grid-connected generation configured to sidestep the interconnection queue, displace the need for conventional backup…”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceCypress, CA, United StatesHQ checked Sep 22, 202611-5020 contacts →

Indirect evidence

“Sapphire Technologies develops and manufactures modular power generation and cooling solutions for data centers, gas infrastructure, and utilities.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceFarmington, NH, United StatesHQ checked Sep 22, 202611-5012 contacts →

Indirect evidence

“Energy Resources Group offers a broad spectrum of cogeneration project capabilities including equipment and services to help bring your project on line on time and within budget…”

Source: RevenueBase Database · checked Sep 22, 2026
9Partial evidenceBallston Spa, NY, United StatesHQ checked Sep 22, 202611-5010 contacts →

Partial evidence

“Aztech Geothermal, LLC offers a comprehensive solution for renewable geothermal heating and cooling systems in residential and commercial buildings with recognized expertise in…”

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceRedmond, WA, United StatesHQ checked Sep 22, 202651-2007 contacts →

Partial evidence

“GeoTility has been designing, installing, and servicing heating and cooling systems for more than 30 years.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceHouston, TX, United StatesHQ checked Sep 22, 202611-507 contacts →

Indirect evidence

“GRIDIRON’s on-site energy provides customers with power and heat that’s affordable, efficient and clean.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceSmithfield, RI, United StatesHQ checked Sep 22, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
13Partial evidenceNew Orleans, LA, United StatesHQ checked Sep 22, 202611-505 contacts →

Partial evidence

“We are a leader in providing “Energy Saving Services.” We provide the best geo thermal air conditioning systems, generators and solar arrays.”

Source: RevenueBase Database · checked Sep 22, 2026
14Partial evidenceAiea, HI, United StatesHQ checked Sep 22, 202611-504 contacts →

Partial evidence

“NIDON Clean Energy provides clean energy solutions with a primary focus on energy efficient air conditioning systems, thereby reducing a customer’s overall electrical demand.”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 22, 202611-504 contacts →

Partial evidence

“Powergen Development Group, LLC is a leading, full-service alternative energy and sustainable energy solutions firm installing and operating CHP Systems continuously since 2012.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceAnchorage, AK, United StatesHQ checked Sep 22, 202611-504 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
17Partial evidenceNorth Palm Beach, FL, United StatesHQ checked Sep 22, 202611-503 contacts →

Partial evidence

“Building small-capacity (35kW to 5MW) distributed Co/TriGeneration plants for commercial facilities.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidencePeachtree Corners, GA, United StatesHQ checked Sep 22, 202611-503 contacts →

Indirect evidence

“USS is your single source for on-site primary power production with our collection of products.”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceDenver, United StatesHQ checked Sep 22, 202611-502 contacts →

Indirect evidence

“Green CHP is an integrated energy solutions provider helping companies that depend on both hot water and electricity move from higher-cost, utility-dependent energy to lower-cost…”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceColumbus, OH, United StatesHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

“AMS is an engineering and design firm providing complete energy solutions to business customers.”

Source: RevenueBase Database · checked Sep 22, 2026
21Partial evidenceSt. Louis, MO, United StatesHQ checked Sep 22, 202611-501 contacts →

Partial evidence

“Rabco Energy Solutions is an experienced, Solar Thermal engineering, cogeneration, systems integration and installation company backed by many years of experience.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceIndianapolis, IN, United StatesHQ checked Sep 22, 20261-101 contacts →

Indirect 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 22, 2026

Showing 22 of 50 trigeneration system providers based in the United States

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Trigeneration system providers based in the United States at a glance

As of Sep 22, 2026
32.0%Verified-email coverage
14.8Average contacts per company
11-50Median size (employees)
8.0%Largest-city concentration · Houston
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
25
51-200
8
1,001-5,000
1

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 50 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 trigeneration system providers, 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 “trigeneration system providers”. 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 trigeneration system providers), 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 trigeneration system providers, 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, 236 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 22, 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 trigeneration system providers, 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 trigeneration system providers are there based in the United States?

RevenueBase identified 50 trigeneration system providers 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?

Tecogen INC, headquartered in North Billerica, tops this list with the largest team on record.

Which city has the most trigeneration system providers?

Houston leads with 4 headquartered companies, followed by Scottsdale (2) and Van Nuys (2).

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 236 verified decision-maker contacts tracked across these 50 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 22, 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.