Company lists · Data refreshed October 2026

Top 18 Frequency regulation equipment manufacturers based in the United States

RevenueBase identified 38 company matches for frequency regulation equipment manufacturers associated with the United States as of October 2026 and tracks 8,816 professional contacts across them, including 3,228 with verified work emails. Aston is the largest hub.

This list covers company matches for frequency regulation equipment manufacturers 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 October 13, 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 Oct 13, 2026 How this list was built
38Companies
8,816Contacts tracked
3,228Verified emails
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The 18 largest frequency regulation equipment manufacturers based in the United States

Ranked by team size
Top 18 of 38 company matches for frequency regulation equipment manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 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 matchPullman, WA, United StatesHQ recorded Oct 13, 20265,001-10,0006,798 contacts →

Exact match

“SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2Exact matchAyer, MA, United StatesHQ recorded Oct 13, 2026201-500359 contacts →

Exact match

“AMSC (NASDAQ: AMSC) generates the ideas, technologies and solutions that meet the world’s demand for smarter, cleaner … better energy.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
3Exact matchIron Mountain, MI, United StatesHQ recorded Oct 13, 2026501-1,000242 contacts →

Exact match

“Systems Control, a Hubbell brand, designs and manufactures turnkey control systems and control relays that are involved in the protection and control of transmission and…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
4Exact matchFlemington, NJ, United StatesHQ recorded Oct 13, 202651-200164 contacts →

Exact match

“Magna-Power designs and manufactures robust programmable power products in the USA that set industry standards for quality, size, and control.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5Exact matchLenexa, KS, United StatesHQ recorded Oct 13, 202651-200154 contacts →

Exact match

“NovaTech Automation produces the easiest to use and best supported automation products and solutions for electric utilities.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
6Exact matchTrafford, PA, United StatesHQ recorded Oct 13, 2026201-500144 contacts →

Exact match

“Cleaveland/Price is a engineering/manufacturing firm serving the needs of the electric power industry.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
7Exact matchHighland, IL, United StatesHQ recorded Oct 13, 2026501-1,000112 contacts →

Exact match

“In 2025, Basler Electric Company was acquired by Littelfuse, Inc, a global, diversified industrial technology manufacturing company dedicated to creating a sustainable, connected…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8Exact matchAzusa, CA, United StatesHQ recorded Oct 13, 2026201-50065 contacts →

Exact match

“Lindsey Systems is recognized globally as an innovator in the electric power industry.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9Exact matchUnited StatesHQ recorded Oct 13, 2026201-50049 contacts →

Exact match

“Professional Power Products offers quality electrical power generation equipment for the entire power industry.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Oct 13, 202651-20029 contacts →

Exact match

“Current Power delivers high-power electrical and automation systems engineered for reliability, scalability, and rapid deployment in data centers and AI-driven facilities.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11Exact matchBessemer, AL, United StatesHQ recorded Oct 13, 2026201-50024 contacts →

Exact match

“Power Grid Components (PGC), now MacLean Power Systems (MPS), supplies highly engineered power equipment for substations across the North American grid.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12Exact matchPaterson, NJ, United StatesHQ recorded Oct 13, 202651-20020 contacts →

Exact match

“One hundred and twenty years ago Tesla invented the first alternating motor.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13Exact matchStanhope, NJ, United StatesHQ recorded Oct 13, 202611-5017 contacts →

Exact match

“Panel Components & Systems, Inc.(PC & S) has over 25 plus years of experience in manufacturing and product distribution.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14Exact matchBristol, VA, United StatesHQ recorded Oct 13, 20261,001-5,00017 contacts →

Exact match

“Federal Pacific is a unified family of power engineering brands, rooted in Bristol, Virginia since 1958.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15Exact matchFort Lee, NJ, United StatesHQ recorded Oct 13, 202651-20016 contacts →

Exact match

“Pioneer Power Solutions, Inc.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
16Exact matchRaleigh, NC, United StatesHQ recorded Oct 13, 20261,001-5,00012 contacts →

Exact match

“The energy landscape is undergoing a fundamental shift.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17Exact matchMiami, FL, United StatesHQ recorded Oct 13, 20261-108 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
18Exact matchNaperville, IL, United StatesHQ recorded Oct 13, 20261-102 contacts →

Exact match

“Innovative Werks is an automation and controls company, providing seamless and comprehensive technology services to industry-level customers.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase

Showing 18 of 38 frequency regulation equipment manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 3,228 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Frequency regulation equipment manufacturers based in the United States at a glance

As of Oct 13, 2026
36.6%Verified-email coverage
232.0Average contacts per company
51-200Median size (employees)
2.6%Largest-city concentration · Aston
Oct 13, 2026Page data refreshed

Companies by employee count

1-10
7
11-50
7
51-200
11
201-500
7
501-1,000
2
1,001-5,000
3
5,001-10,000
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 38 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 “frequency regulation equipment manufacturers” 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 3,228 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 October 13, 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 “frequency regulation equipment manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many frequency regulation equipment manufacturers are there based in the United States?

RevenueBase identified 38 company matches for frequency regulation equipment manufacturers associated with the United States as of October 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?

Schweitzer Engineering Laboratories SEL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most frequency regulation equipment manufacturers?

Aston leads with 1 company records, followed by Ayer (1) and Azusa (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 3,228 professional contacts with verified work emails tracked across these 38 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 October 13, 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.