Company lists · Data refreshed September 2026

Top 17 Optical switches manufacturers based in the United States

RevenueBase identified 34 optical switches manufacturers headquartered in the United States as of September 2026 and tracks 813 professional contacts across them, including 255 with verified work emails. Fremont is the largest hub.

This list covers optical switches 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
34Companies
813Contacts tracked
255Verified emails
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The 17 largest optical switches manufacturers based in the United States

Ranked by team size
Top 17 of 34 optical switches 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 optical switches 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceRosemont, IL, United StatesHQ checked Sep 17, 202610001+315 contacts →

Indirect evidence

“C&K is now part of Littelfuse, Inc.”

Source: RevenueBase Database · checked Sep 17, 2026
2Indirect evidenceTemecula, CA, United StatesHQ checked Sep 17, 202651-200122 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
3Partial evidenceWeymouth, MA, United StatesHQ checked Sep 17, 202651-200118 contacts →

Partial evidence

“Electroswitch, founded in 1946 as a supplier of rugged high quality switches to the defense industry, has grown over the years through a series of innovative product design…”

Source: RevenueBase Database · checked Sep 17, 2026
4Strong evidenceSanta Barbara, CA, United StatesHQ checked Sep 17, 202651-20049 contacts →

Strong evidence

“Calient.AI is the global leader in Optical Circuit Switching systems.”

Source: RevenueBase Database · checked Sep 17, 2026
5Strong evidenceSanta Clara, CA, United StatesHQ checked Sep 17, 202611-5031 contacts →

Strong evidence

“We are nEye.ai, an optical switch startup founded in 2020 to revolutionize the future of data centers.”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidenceNew Providence, NJ, United StatesHQ checked Sep 17, 202611-5023 contacts →

Partial evidence

“Nubis is developing a breakthrough optical technology platform that enables the industry’s highest density and lowest power optical interconnect.”

Source: RevenueBase Database · checked Sep 17, 2026
7Partial evidenceRaleigh, NC, United StatesHQ checked Sep 17, 202651-20019 contacts →

Partial evidence

“Electroswitch Electronic Products was established in 1986 as a unit of Electro Switch Corp, founded in 1946.”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceSan Jose, CA, United StatesHQ checked Sep 17, 202611-507 contacts →

Partial evidence

“NM Laser’s high performance laser shutters define the OEM industry standard, offering unmatched reliability for safety, processing, and modulation applications with high optical…”

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidencePenfield, NY, United StatesHQ checked Sep 17, 202611-507 contacts →

Indirect evidence

“Cytec Corporation is a privately held business incorporated since 1980 and located in Upstate New York.”

Source: RevenueBase Database · checked Sep 17, 2026
10Indirect evidenceDallas, TX, United StatesHQ checked Sep 17, 20261-106 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidenceHickory, NC, United StatesHQ checked Sep 17, 2026201-5005 contacts →

Partial evidence

“With over 30 years of proven innovation, US Conec continues to redefine the optical interconnect industry with next generation high density connectivity solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
12Strong evidenceNew York, NY, United StatesHQ checked Sep 17, 202651-2005 contacts →

Strong evidence

“2001, Luxcore introduced the LambdaRouterTM – the world’s first All-Optical Switch built upon our proprietary semiconductor chip that switched wavelengths of light at the core of…”

Source: RevenueBase Database · checked Sep 17, 2026
13Indirect evidenceBellevue, WA, United StatesHQ checked Sep 17, 202651-2005 contacts →

Indirect evidence

“Hyper Photonix Ltd.”

Source: RevenueBase Database · checked Sep 17, 2026
14Indirect evidenceMilpitas, CA, United StatesHQ checked Sep 17, 202611-505 contacts →

Indirect evidence

“About QT-Brightek Corporation QT-Brightek Corporation is the combination of World Class- Products, Manufacturing and Customer Service.”

Source: RevenueBase Database · checked Sep 17, 2026
15Indirect evidenceWest Greenwich, RI, United StatesHQ checked Sep 17, 20261-103 contacts →

Indirect evidence

“Pressure Controls Inc.”

Source: RevenueBase Database · checked Sep 17, 2026
16Indirect evidenceSomerset, NJ, United StatesHQ checked Sep 17, 202651-2002 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
17Partial evidenceSanta Ana, CA, United StatesHQ checked Sep 17, 202651-2002 contacts →

Partial evidence

“Diptronics manufacturing Inc,established in 1985, specializes in producing and developing Dip switches, Tactile switches, and other precision switches, such as Slide switches…”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 17 of 34 optical switches manufacturers based in the United States

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Optical switches manufacturers based in the United States at a glance

As of Sep 17, 2026
31.4%Verified-email coverage
23.9Average contacts per company
11-50Median size (employees)
5.9%Largest-city concentration · Fremont
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
10
51-200
12
201-500
1
10001+
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 34 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 optical switches 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 “optical switches 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 optical switches 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 optical switches 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, 255 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 optical switches 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 optical switches manufacturers are there based in the United States?

RevenueBase identified 34 optical switches 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?

C&k, headquartered in Rosemont, tops this list with the largest team on record.

Which city has the most optical switches manufacturers?

Fremont leads with 2 headquartered companies, followed by San Jose (2) and Santa Barbara (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 255 verified decision-maker contacts tracked across these 34 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.