Company lists · Data refreshed September 2026

Top 25 Optical transmission equipment manufacturers based in the United States

Name: Optical transmission equipment 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 245 companies tracked

RevenueBase identified 245 optical transmission equipment manufacturers headquartered in the United States as of September 2026 and tracks 10,644 professional contacts across them, including 3,156 with verified work emails. San Jose is the largest hub.

This list covers optical transmission equipment 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

245Companies

10,644Contacts tracked

3,156Verified emails

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The 25 largest optical transmission equipment manufacturers based in the United States

Ranked by team size

Top 25 of 245 optical transmission equipment 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 transmission equipment 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	Lumentum	Partial evidence	San Jose, CA, United StatesHQ checked Sep 17, 2026	10001+	2,257 contacts →
	Partial evidence “Lumentum (NASDAQ: LITE) is a global leader in optical and photonic technologies that power the networks and infrastructure behind AI, cloud computing, and next-generation…” Source: RevenueBase Database · checked Sep 17, 2026
2	OFS	Strong evidence	Norcross, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	816 contacts →
	Strong evidence “OFS is a world-leading innovator, manufacturer and provider of infrastructure solutions for communication networks and specialty fiber optic products.” Source: RevenueBase Database · checked Sep 17, 2026
3	AOI	Strong evidence	Sugar Land, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	416 contacts →
	Strong evidence “Applied Optoelectronics, Inc.\| NASDAQ: AAOI AOI is a leading designer and manufacturer of fiber optic networking products.” Source: RevenueBase Database · checked Sep 17, 2026
4	Source Photonics	Indirect evidence	West Hills, CA, United StatesHQ checked Sep 17, 2026	501-1,000	285 contacts →
	Indirect evidence “Source Photonics is a leading global provider of innovative and reliable technology that enables communications and data connectivity, in next-generation mobile and fixed-line…” Source: RevenueBase Database · checked Sep 17, 2026
5	Optical Cable Corporation	Partial evidence	Roanoke, VA, United StatesHQ checked Sep 17, 2026	201-500	261 contacts →
	Partial evidence “When we first built our reputation as pioneers in fiber optic cable industry, OCC made a commitment to quality, performance, and service.” Source: RevenueBase Database · checked Sep 17, 2026
6	MRV Communications	Partial evidence	Chatsworth, CA, United StatesHQ checked Sep 17, 2026	201-500	259 contacts →
	Partial evidence “MRV is now part of ADVA Optical Networking MRV Communications enables service providers, data center operators and enterprises to make their networks smarter, faster and easier to…” Source: RevenueBase Database · checked Sep 17, 2026
7	Clearfield	Strong evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	201-500	258 contacts →
	Strong evidence “Clearfield, Inc.(NASDAQ: CLFD) designs, manufactures, and distributes fiber optic management, protection, and delivery solutions that play a critical role in enabling broadband…” Source: RevenueBase Database · checked Sep 17, 2026
8	Acacia	Partial evidence	Maynard, MA, United StatesHQ checked Sep 17, 2026	10001+	225 contacts →
	Partial evidence “Acacia is an optical networking strategy and technology company that empowers cloud and service providers to meet the fast-growing consumer demands for data.” Source: RevenueBase Database · checked Sep 17, 2026
9	Oplink Communications, LLC	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	196 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
10	Multilink INC	Indirect evidence	Elyria, OH, United StatesHQ checked Sep 17, 2026	201-500	154 contacts →
	Indirect evidence “Multilink is one of the world's leading engineers and product developers of telecommunications network components, servicing the traditional CATV MSO's (Cable Television Multiple…” Source: RevenueBase Database · checked Sep 17, 2026
11	Fiber Instrument Sales, INC	Strong evidence	Oriskany, NY, United StatesHQ checked Sep 17, 2026	201-500	148 contacts →
	Strong evidence “Fiber Instrument Sales, Inc.(FIS) was founded in 1985 to fulfill the growing need in the communications industry for fiber optic cables and connectivity equipment.” Source: RevenueBase Database · checked Sep 17, 2026
12	Cortina Systems	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 17, 2026	201-500	148 contacts →
	Indirect evidence “Cortina Systems, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
13	Skorpios Technologies, INC	Indirect evidence	Temecula, CA, United StatesHQ checked Sep 17, 2026	51-200	122 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
14	Amphenol Fiber Systems International	Strong evidence	Allen, TX, United StatesHQ checked Sep 17, 2026	201-500	100 contacts →
	Strong evidence “Amphenol Fiber Systems International (AFSI) is a full service fiber optic company specializing in the fabrication and manufacture of fiber optic connectivity products and systems.” Source: RevenueBase Database · checked Sep 17, 2026
15	XTERA	Indirect evidence	Mckinney, TX, United StatesHQ checked Sep 17, 2026	51-200	94 contacts →
	Indirect evidence “Xtera is an innovative provider of sub-sea telecoms solutions and carries an extensive portfolio of intellectual property.” Source: RevenueBase Database · checked Sep 17, 2026
16	Fiber Optic Center	Strong evidence	New Bedford, MA, United StatesHQ checked Sep 17, 2026	11-50	85 contacts →
	Strong evidence “Fiber Optic Center, Inc,(FOC), is an international distributor of fiber optic components, equipment and supplies and the industry connection to the most innovative optical…” Source: RevenueBase Database · checked Sep 17, 2026
17	HALO	Partial evidence	Tustin, CA, United StatesHQ checked Sep 17, 2026	201-500	78 contacts →
	Partial evidence “Halo, a global leader in the fiber optics industry, is shaping the future with compatible transceiver technology.” Source: RevenueBase Database · checked Sep 17, 2026
18	Cotsworks, INC	Strong evidence	Cleveland, OH, United StatesHQ checked Sep 17, 2026	51-200	76 contacts →
	Strong evidence “Moog \| Cotsworks designs and manufactures rugged optical components and subsystems to operate in harsh environments.” Source: RevenueBase Database · checked Sep 17, 2026
19	Blonder Tongue LLC	Partial evidence	Old Bridge, NJ, United StatesHQ checked Sep 17, 2026	51-200	70 contacts →
	Partial evidence “Blonder Tongue, LLC was formed to purchase the assets of Blonder Tongue Laboratories, Inc, the oldest designer and manufacturer of telecommunications and cable television video…” Source: RevenueBase Database · checked Sep 17, 2026
20	Addon Networks	Partial evidence	Tustin, CA, United StatesHQ checked Sep 17, 2026	201-500	69 contacts →
	Partial evidence “AddOn Networks is a leader in optical connectivity solutions serving a wide range of customers, from global organizations in financials, web 2.0/cloud, to SMB, healthcare, and…” Source: RevenueBase Database · checked Sep 17, 2026
21	Prolabs	Indirect evidence	Tustin, CA, United StatesHQ checked Sep 17, 2026	201-500	68 contacts →
	Indirect evidence “For over 20 years, ProLabs has been supplying quality network solutions for some of the largest datacenters in the world.” Source: RevenueBase Database · checked Sep 17, 2026
22	Lightwave Logic, INC	Partial evidence	Englewood, CO, United StatesHQ checked Sep 17, 2026	11-50	55 contacts →
	Partial evidence “Lightwave Logic, Inc.(NASDAQ: LWLG) develops a platform leveraging its proprietary engineered electro-optic (EO) polymers to transmit data at higher speeds with less power.” Source: RevenueBase Database · checked Sep 17, 2026
23	OE Solutions	Partial evidence	Ridgefield Park, NJ, United StatesHQ checked Sep 17, 2026	201-500	55 contacts →
	Partial evidence “OE Solutions (KOSDAQ: 138080) is a global technology leader in optical transceivers for both wireless and wireline markets.” Source: RevenueBase Database · checked Sep 17, 2026
24	Fiberdyne Labs	Indirect evidence	Frankfort, NY, United StatesHQ checked Sep 17, 2026	51-200	50 contacts →
	Indirect evidence “Fiberdyne Labs, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
25	Approved Networks, A Brand Of Legrand	Indirect evidence	Orange County, OH, United StatesHQ checked Sep 17, 2026	51-200	49 contacts →
	Indirect evidence “Approved Networks is a proud brand of Legrand in the Data, Power, and Control Division.” 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: optical transmission equipment 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 optical transmission equipment manufacturers.
Partial evidence: Its own public description names part of optical transmission equipment manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name optical transmission equipment 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 245 optical transmission equipment manufacturers based in the United States

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Optical transmission equipment manufacturers based in the United States at a glance

As of Sep 17, 2026

29.7%Verified-email coverage

43.4Average contacts per company

11-50Median size (employees)

5.3%Largest-city concentration · San Jose

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 245 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 transmission equipment 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 transmission equipment 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 transmission equipment 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 transmission equipment 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, 3,156 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 transmission equipment 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 transmission equipment manufacturers are there based in the United States?

RevenueBase identified 245 optical transmission equipment 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?

Lumentum, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most optical transmission equipment manufacturers?

San Jose leads with 13 headquartered companies, followed by Fremont (9) and Irvine (6).

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 3,156 verified decision-maker contacts tracked across these 245 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.