Company lists · Data refreshed November 2026

Top 13 Fuel cell system installers based in the United States

RevenueBase identified 26 company matches for fuel cell system installers associated with the United States as of November 2026 and tracks 1,400 professional contacts across them, including 448 with verified work emails. Irvine is the largest hub.

This list covers company matches for fuel cell 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
26Companies
1,400Contacts tracked
448Verified emails
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The 13 largest fuel cell system installers based in the United States

Ranked by team size
Top 13 of 26 company matches for fuel cell 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 matchIrving, TX, United StatesHQ recorded Nov 6, 20261,001-5,000634 contacts →

Exact match

“OWL™ Services is the premier sales, installation, program management, compliance and service provider to industrial, commercial fleet, municipal and electrical vehicle charging…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMemphis, TN, United StatesHQ recorded Nov 6, 202611-5051 contacts →

Exact match

“FFC manufactures New PMA fuel cells, and overhauls / repairs fuel cells for all aircraft platforms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBend, OR, United StatesHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Telecom Backup Power Founded in 1996 as Northwest Power Systems, H2 PowerTech (formerly IdaTech) provides industry leading reformer, hydrogen production, and fuel cell technology…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Manage full cycle of fuel cell projects from Engineering, Procurement, and Construction, Financing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchEagle River, WI, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Our goal is to provide you with all the information you need to make informed bladder fuel cell maintenance and replacement choices.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCollege Station, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

“FuelCellsEtc specializes in providing highly customized Fuel Cell and Electrolyzer components.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGroton, CT, United StatesHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Our mission is to build a cleaner world through design and integration of zero-emission fuel cell systems for heavy-duty markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchFolsom, CA, United StatesHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Altergy Systems®, the global leader in reliable backup power solutions for telecom and critical power applications, delivers proven fuel cell technology that provides on-demand…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLake Park, FL, United StatesHQ recorded Nov 6, 20261-106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchFremont, CA, United StatesHQ recorded Nov 6, 202611-505 contacts →

Exact match

“We are revolutionizing power generation using readily available renewable fuels.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLexington, SC, United StatesHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Future Fuels is a family-owned turn-key alternative energy solutions company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPoway, CA, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Greenumerix Technology is an advanced hydrogen fuel cell powertrain design, development and vehicle system integration company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCleveland, OH, United StatesHQ recorded Nov 6, 20261-101 contacts →

Exact match

“AnywherEnergy Systems is a modular scalable fuel cell power generator for luxury RVs and long-haul/reefer trucks for extended off-grid power that is clean, quiet, more than 2-3X…”

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

Showing 13 of 26 fuel cell system installers based in the United States

See the full list, filter by size, metro and specialty, and access 448 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Fuel cell system installers based in the United States at a glance

As of Nov 6, 2026
32.0%Verified-email coverage
53.8Average contacts per company
11-50Median size (employees)
7.7%Largest-city concentration · Irvine
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
9
11-50
13
51-200
1
201-500
1
501-1,000
1
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 26 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 “fuel cell 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 448 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 “fuel cell system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fuel cell system installers are there based in the United States?

RevenueBase identified 26 company matches for fuel cell 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?

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

Which city has the most fuel cell system installers?

Irvine leads with 2 company records, followed by Alliance (1) and Bend (1).

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 448 professional contacts with verified work emails tracked across these 26 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.