Company lists · Data refreshed September 2026

Top 25 Backup power system companies based in the United States

Name: Backup power system 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 19, 2026 774 companies tracked

RevenueBase identified 774 backup power system companies headquartered in the United States as of September 2026 and tracks 27,073 professional contacts across them, including 8,835 with verified work emails. Houston is the largest hub.

This list covers backup power system 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 19, 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 19, 2026 86% judged on-target in blind review

774Companies

27,073Contacts tracked

8,835Verified emails

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The 25 largest backup power system companies based in the United States

Ranked by team size

Top 25 of 774 backup power system companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to backup power system 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	Briggs & Stratton	Partial evidence	Milwaukee, WI, United StatesHQ checked Sep 19, 2026	5,001-10,000	3,123 contacts →
	Partial evidence “Briggs & Stratton, headquartered in Milwaukee, Wisconsin, provides innovative products and diverse power solutions to help people get work done.” Source: RevenueBase Database · checked Sep 19, 2026
2	Mitsubishi Power Americas	Partial evidence	Lake Mary, FL, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,859 contacts →
	Partial evidence “Mitsubishi Power Americas is creating a future that works for people and the planet through innovative power generation technology and solutions.” Source: RevenueBase Database · checked Sep 19, 2026
3	Rehlko	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,709 contacts →
	Indirect evidence “Rehlko is a global leader in energy resilience, delivering the solutions critical to sustain and improve life.” Source: RevenueBase Database · checked Sep 19, 2026
4	Industrial Electric Mfg. IEM	Strong evidence	Fremont, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	969 contacts →
	Strong evidence “Industrial Electric Mfg.(IEM) is the largest independent full-line manufacturer of electrical distribution equipment and integrated power systems in the U.S.” Source: RevenueBase Database · checked Sep 19, 2026
5	Mainspring Energy	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 19, 2026	201-500	479 contacts →
	Partial evidence “Mainspring is a power generator manufacturer redefining how local power is delivered to capacity constrained companies and communities.” Source: RevenueBase Database · checked Sep 19, 2026
6	Asco Power Technologies	Partial evidence	Florham Park, NJ, United StatesHQ checked Sep 19, 2026	1,001-5,000	468 contacts →
	Partial evidence “ASCO Power Technologies has provided power reliability solutions for more than 125 years.” Source: RevenueBase Database · checked Sep 19, 2026
7	Trystar	Partial evidence	Faribault, MN, United StatesHQ checked Sep 19, 2026	501-1,000	427 contacts →
	Partial evidence “Trystar is at the forefront of advancing power solutions, charged and driven by a committed, dynamic team, tackling complex challenges, and creating innovative solutions.” Source: RevenueBase Database · checked Sep 19, 2026
8	Murata Power Solutions	Partial evidence	Westborough, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	369 contacts →
	Partial evidence “Murata Power Solutions is powering the future with sustainable energy solutions.” Source: RevenueBase Database · checked Sep 19, 2026
9	Solaris Energy Infrastructure	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	501-1,000	331 contacts →
	Partial evidence “Solaris Energy Infrastructure (NYSE: SEI) delivers proprietary power generation and distribution solutions, as well as logistics equipment and services, to clients in the data…” Source: RevenueBase Database · checked Sep 19, 2026
10	Mesa Power Solutions	Partial evidence	Loveland, CO, United StatesHQ checked Sep 19, 2026	1,001-5,000	329 contacts →
	Partial evidence “We are a leading energy services provider specializing in the engineering, manufacturing, sales, leasing, and operations of cutting-edge power technology including natural gas and…” Source: RevenueBase Database · checked Sep 19, 2026
11	Power Plus	Partial evidence	Anaheim, CA, United StatesHQ checked Sep 19, 2026	201-500	323 contacts →
	Partial evidence “For more than 35 years, Power Plus has been serving our customers across the Country providing Temporary Power, Rental Generators, and performing Generator Service & Maintenance.” Source: RevenueBase Database · checked Sep 19, 2026
12	Sunbelt Solomon	Partial evidence	Temple, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	271 contacts →
	Partial evidence “Sunbelt Solomon is a leading provider of customized electrical power solutions and services.” Source: RevenueBase Database · checked Sep 19, 2026
13	DC Group	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 19, 2026	201-500	270 contacts →
	Partial evidence “DC Group delivers one-stop maintenance and emergency service solutions for every make and model of uninterruptible power supply (UPS) equipment built since the 1980s including…” Source: RevenueBase Database · checked Sep 19, 2026
14	Active Power INC	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	51-200	264 contacts →
	Partial evidence “At Active Power, our mission is to empower customers with sustainable, reliable, intelligent power solutions.” Source: RevenueBase Database · checked Sep 19, 2026
15	LG Energy Solution Vertech, INC	Indirect evidence	Westborough, MA, United StatesHQ checked Sep 19, 2026	51-200	244 contacts →
	Indirect evidence “LG Energy Solution Vertech, Inc.(LGES Vertech) delivers exceptional customer engagement throughout every stage of acquiring, installing, and operating advanced, reliable, and…” Source: RevenueBase Database · checked Sep 19, 2026
16	Tripp Lite	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	239 contacts →
	Indirect evidence “Tripp Lite joined the Eaton family in March 2021.” Source: RevenueBase Database · checked Sep 19, 2026
17	Electro-Mechanical	Partial evidence	Bristol, VA, United StatesHQ checked Sep 19, 2026	501-1,000	221 contacts →
	Partial evidence “Electro-Mechanical, LLC is a global leader in developing and manufacturing technologies used for electrical power distribution switching, power quality and power protection…” Source: RevenueBase Database · checked Sep 19, 2026
18	National Power	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	51-200	218 contacts →
	Partial evidence “We Deliver Resilience and Reliability in Power and Infrastructure Solutions.” Source: RevenueBase Database · checked Sep 19, 2026
19	Unico LLC	Indirect evidence	Franksville, WI, United StatesHQ checked Sep 19, 2026	201-500	214 contacts →
	Indirect evidence “The key factor to technological success is the speed of innovation.” Source: RevenueBase Database · checked Sep 19, 2026
20	Generator Supercenter	Indirect evidence	Tomball, TX, United StatesHQ checked Sep 19, 2026	501-1,000	205 contacts →
	Indirect evidence “Generator Supercenter is a company based out of United States.” Source: RevenueBase Database · checked Sep 19, 2026
21	Maverick Power	Partial evidence	Mckinney, TX, United StatesHQ checked Sep 19, 2026	201-500	205 contacts →
	Partial evidence “At Maverick Power, we are revolutionizing power solutions for businesses with a strong commitment to innovation, efficiency, and reliability.” Source: RevenueBase Database · checked Sep 19, 2026
22	Energy Vault	Strong evidence	Westlake Village, VA, United StatesHQ checked Sep 19, 2026	51-200	203 contacts →
	Strong evidence “Energy Vault® is an integrated power infrastructure platform that builds, owns and operates flexible, reliable energy systems to accelerate time-to-power for utilities…” Source: RevenueBase Database · checked Sep 19, 2026
23	Genserve	Strong evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	198 contacts →
	Strong evidence “GenServe supports critical infrastructure by delivering expert, OEM-agnostic power services across all generator systems and brands.” Source: RevenueBase Database · checked Sep 19, 2026
24	Peterson Power Systems	Strong evidence	San Leandro, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	179 contacts →
	Strong evidence “Peterson Power Systems serves Northern California, western Oregon, and southern Washington, providing Caterpillar diesel and natural gas engines for power generation, as well as…” Source: RevenueBase Database · checked Sep 19, 2026
25	Cyber Power Systems USA , INC	Strong evidence	Shakopee, MN, United StatesHQ checked Sep 19, 2026	51-200	176 contacts →
	Strong evidence “CyberPower designs and manufactures uninterruptible power supply (UPS) systems, power distribution units (PDUs), rack enclosures, surge protectors, remote management hardware…” Source: RevenueBase Database · checked Sep 19, 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: backup power system 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 backup power system companies.
Partial evidence: Its own public description names part of backup power system companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name backup power system 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 774 backup power system companies based in the United States

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Backup power system companies based in the United States at a glance

As of Sep 19, 2026

32.6%Verified-email coverage

35.0Average contacts per company

11-50Median size (employees)

3.5%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

283

11-50

267

51-200

139

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 774 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 backup power system 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 “backup power system 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 backup power system 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 backup power system 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, 8,835 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 19, 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.

Backup power system companies by metro

Backup power system companies in Houston27

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 backup power system 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 backup power system companies are there based in the United States?

RevenueBase identified 774 backup power system 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?

Briggs & Stratton, headquartered in Milwaukee, tops this list with the largest team on record.

Which city has the most backup power system companies?

Houston leads with 27 headquartered companies, followed by Miami (11) and Dallas (10).

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 8,835 verified decision-maker contacts tracked across these 774 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 19, 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.