Company lists · Data refreshed September 2026

Top 25 Automotive electrical connectors based in the United States

Name: Automotive electrical connectors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 179 companies tracked

RevenueBase identified 179 automotive electrical connectors headquartered in the United States as of September 2026 and tracks 11,931 professional contacts across them, including 3,080 with verified work emails. Irvine is the largest hub.

This list covers automotive electrical connectors 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 16, 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 16, 2026 86% judged on-target in blind review

179Companies

11,931Contacts tracked

3,080Verified emails

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The 25 largest automotive electrical connectors based in the United States

Ranked by team size

Top 25 of 179 automotive electrical connectors based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to automotive electrical connectors: 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	Samtec INC	Partial evidence	New Albany, IN, United StatesHQ checked Sep 16, 2026	5,001-10,000	2,536 contacts →
	Partial evidence “Founded in 1976, Samtec is much more than just another connector company.” Source: RevenueBase Database · checked Sep 16, 2026
2	Bizlink Group	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 16, 2026	10001+	1,054 contacts →
	Indirect evidence “Founded in 1996 and headquartered in Silicon Valley, USA, BizLink is dedicated to making transformative connections that bring visionary ideas to life.” Source: RevenueBase Database · checked Sep 16, 2026
3	Fujikura Automotive America	Partial evidence	Southfield, MI, United StatesHQ checked Sep 16, 2026	5,001-10,000	765 contacts →
	Partial evidence “The Fujikura Group offers a wide range of automotive products, including wire-harnesses, several types of sensors, and electronic products.” Source: RevenueBase Database · checked Sep 16, 2026
4	Pei-Genesis	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 16, 2026	501-1,000	597 contacts →
	Partial evidence “PEI-Genesis is a world leader in the distribution, manufacture and integration of electronic connectors and cable assemblies with a highly evolved system for mass customized…” Source: RevenueBase Database · checked Sep 16, 2026
5	Positronic Amphenol	Partial evidence	Springfield, MO, United StatesHQ checked Sep 16, 2026	501-1,000	327 contacts →
	Partial evidence “Headquartered in Springfield, Missouri, Positronic, an Amphenol company has been providing connector solutions worldwide since 1966.” Source: RevenueBase Database · checked Sep 16, 2026
6	ECM	Indirect evidence	Westfield, PA, United StatesHQ checked Sep 16, 2026	501-1,000	292 contacts →
	Indirect evidence “We Make Powerful Connections.” Source: RevenueBase Database · checked Sep 16, 2026
7	Amphenol Industrial Operations	Indirect evidence	Endicott, NY, United StatesHQ checked Sep 16, 2026	1,001-5,000	191 contacts →
	Indirect evidence “Amphenol Industrial Operations, headquartered in Endicott, New York with global manufacturing, sales and marketing locations, specializes in delivering a comprehensive range of…” Source: RevenueBase Database · checked Sep 16, 2026
8	St. Clair Technologies, INC	Indirect evidence	Chandler, AZ, United StatesHQ checked Sep 16, 2026	1,001-5,000	171 contacts →
	Indirect evidence “At St.” Source: RevenueBase Database · checked Sep 16, 2026
9	GSW Manufacturing	Partial evidence	Findlay, OH, United StatesHQ checked Sep 16, 2026	1,001-5,000	137 contacts →
	Partial evidence “GSW Manufacturing is a wiring harness manufacturer for the automotive industry.” Source: RevenueBase Database · checked Sep 16, 2026
10	American Furukawa INC	Indirect evidence	Plymouth, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	129 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
11	Amphenol Unlimited Services	Indirect evidence	Oconto, WI, United StatesHQ checked Sep 16, 2026	501-1,000	125 contacts →
	Indirect evidence “Unlimited Services is headquarters in Oconto, Wisconsin with 2 additional manufacturing locations in Mexico.” Source: RevenueBase Database · checked Sep 16, 2026
12	Hirel Connectors, INC	Partial evidence	Claremont, CA, United StatesHQ checked Sep 16, 2026	201-500	119 contacts →
	Partial evidence “HiRel Connectors Inc.” Source: RevenueBase Database · checked Sep 16, 2026
13	Meritec	Partial evidence	Painesville, OH, United StatesHQ checked Sep 16, 2026	201-500	89 contacts →
	Partial evidence “Meritec provides custom connectors and custom cable assemblies to OEMs in a variety of markets in the electronics industry.” Source: RevenueBase Database · checked Sep 16, 2026
14	Thermtrol Corporation	Indirect evidence	North Canton, OH, United StatesHQ checked Sep 16, 2026	501-1,000	83 contacts →
	Indirect evidence “Thermtrol Corporation is a manufacturer of wire/cable harnesses, thermal protectors, and sub-assemblies with over 35 years of experience.” Source: RevenueBase Database · checked Sep 16, 2026
15	Amphenol Sine Systems	Indirect evidence	Clinton Township, MI, United StatesHQ checked Sep 16, 2026	201-500	72 contacts →
	Indirect evidence “Amphenol Sine Systems designs, manufacturers and supplies high-performance interconnect systems for a range of Industrial applications including for use with Automation, Marine…” Source: RevenueBase Database · checked Sep 16, 2026
16	Thomas & Betts A Member Of The ABB Group	Partial evidence	Memphis, TN, United StatesHQ checked Sep 16, 2026	n/a	68 contacts →
	Partial evidence “Bringing the Power of Electricity into Your Life Every day, everywhere, hundreds of millions of electrical products get plugged in.” Source: RevenueBase Database · checked Sep 16, 2026
17	Waytek INC	Indirect evidence	Chanhassen, MN, United StatesHQ checked Sep 16, 2026	51-200	62 contacts →
	Indirect evidence “Waytek is dedicated to providing an exceptional customer experience.” Source: RevenueBase Database · checked Sep 16, 2026
18	Amphenol Adronics	Partial evidence	Hays, KS, United StatesHQ checked Sep 16, 2026	501-1,000	61 contacts →
	Partial evidence “Amphenol Adronics, a member of Amphenol Group, is a world leader providing automotive applications for Radio, GPS, Camara, Ethernet, Autonomous Vehicles, Headliner, Body Pillar…” Source: RevenueBase Database · checked Sep 16, 2026
19	American Autowire	Strong evidence	Bellmawr, NJ, United StatesHQ checked Sep 16, 2026	51-200	55 contacts →
	Strong evidence “American Autowire is the premier automotive electrical manufacturer for OEM/Restoration, Modified Restoration, and Street Rod/Custom Vehicles.” Source: RevenueBase Database · checked Sep 16, 2026
20	JOY Signal Technology	Partial evidence	Chico, CA, United StatesHQ checked Sep 16, 2026	51-200	54 contacts →
	Partial evidence “Joy Signal Technology and its Ohio affiliate, Meritec, are signal integrity leaders and preferred vertically integrated manufacturers of high-performance electrical and electronic…” Source: RevenueBase Database · checked Sep 16, 2026
21	AIR Electro, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 16, 2026	51-200	53 contacts →
	Indirect evidence “Veteran founded in 1952, Air Electro brings over 70 years of experience to the aerospace, defense, transportation, space, automation, IoT, industrial and transportation industries.” Source: RevenueBase Database · checked Sep 16, 2026
22	Royal Power Solutions CO	Strong evidence	Carol Stream, IL, United StatesHQ checked Sep 16, 2026	201-500	53 contacts →
	Strong evidence “Headquartered in Carol Stream, Illinois, Royal Power Solutions is a leading global supplier of high-precision, critical electrical connectivity components for automotive and…” Source: RevenueBase Database · checked Sep 16, 2026
23	Kato Cable	Partial evidence	Mankato, MN, United StatesHQ checked Sep 16, 2026	51-200	52 contacts →
	Partial evidence “Kato Cable is a premier wire harness and electrical assembly manufacturer based in Mankato, Minnesota.” Source: RevenueBase Database · checked Sep 16, 2026
24	Iriso Usa, INC	Partial evidence	Farmington Hills, MI, United StatesHQ checked Sep 16, 2026	1,001-5,000	50 contacts →
	Partial evidence “IRISO Electronics is a dedicated global manufacturer of PCB mounted connectors.” Source: RevenueBase Database · checked Sep 16, 2026
25	Optronics International LLC	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 16, 2026	51-200	42 contacts →
	Indirect evidence “As the fastest-growing vehicle lighting and harness manufacturer in the U.S, Optronics International attributes its success to delivering better value, better options and better…” Source: RevenueBase Database · checked Sep 16, 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: automotive electrical connectors. 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 automotive electrical connectors.
Partial evidence: Its own public description names part of automotive electrical connectors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name automotive electrical connectors. 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 179 automotive electrical connectors based in the United States

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Automotive electrical connectors based in the United States at a glance

As of Sep 16, 2026

25.8%Verified-email coverage

66.7Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Irvine

Sep 16, 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 179 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 automotive electrical connectors, 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 “automotive electrical connectors”. 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 automotive electrical connectors), 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 automotive electrical connectors, 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, 3,080 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 16, 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 automotive electrical connectors, 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 automotive electrical connectors are there based in the United States?

RevenueBase identified 179 automotive electrical connectors 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?

Samtec INC, headquartered in New Albany, tops this list with the largest team on record.

Which city has the most automotive electrical connectors?

Irvine leads with 3 headquartered companies, followed by San Diego (3) and Bellmawr (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 3,080 verified decision-maker contacts tracked across these 179 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 16, 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.