Company lists · Data refreshed September 2026

Top 25 Industrial relay manufacturers based in the United States

Name: Industrial relay manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 139 companies tracked

RevenueBase identified 139 industrial relay manufacturers headquartered in the United States as of September 2026 and tracks 9,368 professional contacts across them, including 3,390 with verified work emails. Atlanta is the largest hub.

This list covers industrial relay manufacturers 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 17, 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 17, 2026 86% judged on-target in blind review

139Companies

9,368Contacts tracked

3,390Verified emails

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The 25 largest industrial relay manufacturers based in the United States

Ranked by team size

Top 25 of 139 industrial relay manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial relay manufacturers: 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	Schweitzer Engineering Laboratories SEL	Partial evidence	Pullman, WA, United StatesHQ checked Sep 17, 2026	5,001-10,000	6,489 contacts →
	Partial evidence “SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.” Source: RevenueBase Database · checked Sep 17, 2026
2	Revere Electric Supply	Indirect evidence	Mokena, IL, United StatesHQ checked Sep 17, 2026	201-500	275 contacts →
	Indirect evidence “Revere Electric Supply is a 4th generation, family-owned, automation and electrical distributor that has been “Connecting People To Innovation Since 1919".” Source: RevenueBase Database · checked Sep 17, 2026
3	Systems Control	Strong evidence	Iron Mountain, MI, United StatesHQ checked Sep 17, 2026	501-1,000	240 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
4	Idec USA	Partial evidence	Sunnyvale, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	216 contacts →
	Partial evidence “A global manufacturer with locations throughout Asia, North and South America, and Europe, IDEC Corporation has provided reliable automation, control and safety products worldwide…” Source: RevenueBase Database · checked Sep 17, 2026
5	AA Electric	Indirect evidence	Lakeland, FL, United StatesHQ checked Sep 17, 2026	n/a	161 contacts →
	Indirect evidence “AA Electric is your single source for machine control and automation specialty electrical products.” Source: RevenueBase Database · checked Sep 17, 2026
6	Esterline Power Systems	Strong evidence	Buena Park, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	154 contacts →
	Strong evidence “Esterline Power Systems (Leach International) designs and manufactures a broad range of high-reliable power switching assemblies, relays, and control components and equipment for…” Source: RevenueBase Database · checked Sep 17, 2026
7	C3controls	Indirect evidence	Beaver, PA, United StatesHQ checked Sep 17, 2026	201-500	134 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
8	E-T-A Engineering Technology	Partial evidence	Mt. Prospect, IL, United StatesHQ checked Sep 17, 2026	51-200	111 contacts →
	Partial evidence “E-T-A Engineering Technology is the world’s leading manufacturer of circuit breakers for equipment and is the only resource for all circuit protection technologies: thermal…” Source: RevenueBase Database · checked Sep 17, 2026
9	Aratas America	Partial evidence	Hoffman Estates, IL, United StatesHQ checked Sep 17, 2026	51-200	106 contacts →
	Partial evidence “Aratas America LLC is a leading manufacturer and provider of advanced electronic components, serving customers across the Americas with innovative technologies, technical…” Source: RevenueBase Database · checked Sep 17, 2026
10	Noark Electric	Strong evidence	Addison, TX, United StatesHQ checked Sep 17, 2026	n/a	97 contacts →
	Strong evidence “NOARK Electric is a global manufacturer and supplier of low, medium and high voltage electrical components for industrial and commercial applications.” Source: RevenueBase Database · checked Sep 17, 2026
11	Lutze INC	Strong evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	51-200	58 contacts →
	Strong evidence “LUTZE designs and manufactures control products for industrial automation.” Source: RevenueBase Database · checked Sep 17, 2026
12	Hubbell Industrial Controls, INC	Partial evidence	Archdale, NC, United StatesHQ checked Sep 17, 2026	201-500	53 contacts →
	Partial evidence “HUBBELL INDUSTRIAL CONTROLS, INC- formerly the Euclid Electric & Mfg.” Source: RevenueBase Database · checked Sep 17, 2026
13	Hengstler-Dynapar	Indirect evidence	Elizabethtown, NC, United StatesHQ checked Sep 17, 2026	1,001-5,000	52 contacts →
	Indirect evidence “Hengstler, Dynapar, Dover Motion, Joslyn Clark, Namco, Superior Electric, Veeder‑Root, and Eagle Signal come together as a global family of brands delivering high‑performance…” Source: RevenueBase Database · checked Sep 17, 2026
14	Altran Magnetics, LLC	Partial evidence	Sterling, IL, United StatesHQ checked Sep 17, 2026	11-50	43 contacts →
	Partial evidence “Altran Magnetics, LLC, is a Premier Global Supplier of EMI filter, Motor and Blower, Solid State Relay, DC Contactor, and Photo Control technologies.” Source: RevenueBase Database · checked Sep 17, 2026
15	Song Chuan Precision Group	Strong evidence	Pompano Beach, FL, United StatesHQ checked Sep 17, 2026	11-50	37 contacts →
	Strong evidence “Song Chuan is a world class manufacturer of power electromechanical relays with over 50 years of experience.” Source: RevenueBase Database · checked Sep 17, 2026
16	Gross Automation	Partial evidence	Brookfield, WI, United StatesHQ checked Sep 17, 2026	11-50	32 contacts →
	Partial evidence “At Gross Automation, we are more – much more than a leading distributor of the world’s most trusted brands in industrial automation, electrical components, panels, and systems.” Source: RevenueBase Database · checked Sep 17, 2026
17	CIT Relay & Switch	Strong evidence	Rogers, MN, United StatesHQ checked Sep 17, 2026	501-1,000	31 contacts →
	Strong evidence “CIT Relay & Switch, located in greater Minneapolis, MN, is a designer and manufacturer of quality Electromechanical Relays, Solid State Relays and Electromechanical Switches.” Source: RevenueBase Database · checked Sep 17, 2026
18	Winkle Electric Co., INC	Partial evidence	Youngstown, OH, United StatesHQ checked Sep 17, 2026	11-50	26 contacts →
	Partial evidence “Winkle Electric Company offers extensive Electrical Supply, Factory Automation, Industrial Services, and Custom Control Panels.” Source: RevenueBase Database · checked Sep 17, 2026
19	Mennekes Electrical Products	Strong evidence	Fairfield, NJ, United StatesHQ checked Sep 17, 2026	51-200	21 contacts →
	Strong evidence “MENNEKES is a world-leading manufacturer of industrial electrical products that services the OEM, end-user, contractor and distribution marketplace.” Source: RevenueBase Database · checked Sep 17, 2026
20	Symcom	Indirect evidence	Rapid City, SD, United StatesHQ checked Sep 17, 2026	51-200	21 contacts →
	Indirect evidence “Based out of Rapid City, SD, SymCom has been a leader in electronic control and protection since 1974.” Source: RevenueBase Database · checked Sep 17, 2026
21	Controller Service & Sales INC	Partial evidence	Avon, MA, United StatesHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “Since 1926, Controller Service & Sales has been New England's premiere resource for electrical control components and industrial automation products.” Source: RevenueBase Database · checked Sep 17, 2026
22	Upstate Controls, INC	Indirect evidence	Simpsonville, SC, United StatesHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “Upstate Controls is the easy way to get award-winning brands for Engineered Electrical & Mechanical Automation solutions- Michael just stood in the middle of the production floor.” Source: RevenueBase Database · checked Sep 17, 2026
23	Altech Corporation	Partial evidence	Flemington, NJ, United StatesHQ checked Sep 17, 2026	201-500	17 contacts →
	Partial evidence “Altech Corporation is an established USA supplier of components and devices used in industrial control, instrumentation and automation.” Source: RevenueBase Database · checked Sep 17, 2026
24	Rincon Power	Partial evidence	Carpinteria, CA, United StatesHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “Rincon Power is a leading supplier of high-performance contactors, relays, and switches designed to meet the needs of an electrified future.” Source: RevenueBase Database · checked Sep 17, 2026
25	Divelbiss Corporation	Strong evidence	Fredericktown, OH, United StatesHQ checked Sep 17, 2026	11-50	16 contacts →
	Strong evidence “Divelbiss Corporation - founded in 1974 - designs and manufactures industrially hardened electronic control solutions.” Source: RevenueBase Database · checked Sep 17, 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: industrial relay manufacturers. 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 industrial relay manufacturers.
Partial evidence: Its own public description names part of industrial relay manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial relay manufacturers. 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 139 industrial relay manufacturers based in the United States

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Industrial relay manufacturers based in the United States at a glance

As of Sep 17, 2026

36.2%Verified-email coverage

67.4Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · Atlanta

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 139 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 industrial relay manufacturers, 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 “industrial relay manufacturers”. 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 industrial relay manufacturers), 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 industrial relay manufacturers, 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, 3,390 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 17, 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 industrial relay manufacturers, 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 industrial relay manufacturers are there based in the United States?

RevenueBase identified 139 industrial relay manufacturers 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?

Schweitzer Engineering Laboratories SEL, headquartered in Pullman, tops this list with the largest team on record.

Which city has the most industrial relay manufacturers?

Atlanta leads with 2 headquartered companies, followed by Carpinteria (2) and Charlotte (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 3,390 verified decision-maker contacts tracked across these 139 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 17, 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.