Company lists · Data refreshed September 2026
Top 25 Multicore fiber manufacturers based in the United States
RevenueBase identified 166 multicore fiber manufacturers headquartered in the United States as of September 2026 and tracks 12,052 professional contacts across them, including 4,034 with verified work emails. Fremont is the largest hub.
This list covers multicore fiber 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 30, 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.
The 25 largest multicore fiber manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,813 contacts → | ||||
Partial evidence “Founded in 1984, AFL is a global manufacturer providing end-to-end solutions to the energy, broadband, data center, AI and industrial markets.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,257 contacts → | ||||
Indirect 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 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 225 contacts → | ||||
Indirect 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 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 148 contacts → | ||||
Partial 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 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 130 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 122 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 121 contacts → | ||||
Partial evidence “Founded in 1984, AFL is an international manufacturer providing end-to-end network solutions to the energy, service provider, enterprise, hyperscale and industrial markets.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 96 contacts → | ||||
Partial evidence “WEINERT Fiber Optics is an established leader with decades of unique fiber optic experience.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 85 contacts → | ||||
Partial 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 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 65 contacts → | ||||
Partial evidence “Incom is the world’s largest supplier of glass and polymer fused fiber optic solutions that enable innovation in the medical, scientific, display and defense industries.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 63 contacts → | ||||
Indirect evidence “DiCon Fiberoptics, Inc, is a well-established photonics technology company based in the San Francisco Bay Area.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 55 contacts → | ||||
Indirect 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 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 50 contacts → | ||||
Indirect evidence “Fiberdyne Labs, Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 46 contacts → | ||||
Strong evidence “The company designs, develops, manufactures, and markets innovative fiber-optic products to communications networks, and provides customized solutions to instrument, defense…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 42 contacts → | ||||
Indirect evidence “Founded in 2003, Proficium is a leader in revolutionizing the optical connectivity landscape within the AI and hyperscale data center environment.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 36 contacts → | ||||
Partial evidence “Optical Zonu Corporation is a privately owned high technology company located in Los Angeles, CA, specializing in the design and manufacturing of Fiber Optic Components for Analog…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 35 contacts → | ||||
Partial evidence “Suncall America provides high-precision fiber optic connectors and adapters designed to address the density and performance challenges of today’s data-driven networks.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 28 contacts → | ||||
Strong evidence “Omnitron Systems designs and manufactures fiber optic connectivity products that enable the delivery of next-generation network services.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
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: multicore fiber 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 multicore fiber manufacturers.
- Partial evidence
- Its own public description names part of multicore fiber manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name multicore fiber 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 166 multicore fiber manufacturers based in the United States
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Multicore fiber manufacturers based in the United States at a glance
As of Sep 30, 2026Companies by employee count
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 166 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 multicore fiber 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 “multicore fiber 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 multicore fiber 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 multicore fiber 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, 4,034 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 30, 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 multicore fiber 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 multicore fiber manufacturers are there based in the United States?
RevenueBase identified 166 multicore fiber 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?
AFL, headquartered in Duncan, tops this list with the largest team on record.
Which city has the most multicore fiber manufacturers?
Fremont leads with 8 headquartered companies, followed by Irvine (4) and San Jose (4).
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 4,034 verified decision-maker contacts tracked across these 166 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 30, 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.
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