Company lists · Data refreshed September 2026

Top 25 Fiber optics companies worldwide

Name: Fiber optics companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 5,898 companies tracked

RevenueBase identified 5,898 fiber optics companies worldwide as of September 2026 and tracks 146,544 professional contacts across them, including 38,056 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers fiber optics companies worldwide, 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 20, 2026. Country and city lists for fiber optics companies follow the table.

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 20, 2026 86% judged on-target in blind review

5,898Companies

146,544Contacts tracked

38,056Verified emails

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The 25 largest fiber optics companies worldwide

Ranked by team size

Top 25 of 5,898 fiber optics companies worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to fiber optics companies: 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	Frontier Internet	Partial evidence	Dallas, TX, United StatesHQ checked Sep 20, 2026	10001+	11,368 contacts →
	Partial evidence “Frontier, a Verizon company, is one of the largest fiber providers in the U.S.” Source: RevenueBase Database · checked Sep 20, 2026
2	CIENA	Indirect evidence	Hanover, MD, United StatesHQ checked Sep 20, 2026	5,001-10,000	9,426 contacts →
	Indirect evidence “Ciena (NYSE:CIEN) is the global leader in high-speed connectivity.” Source: RevenueBase Database · checked Sep 20, 2026
3	STL	Indirect evidence	Pune, IndiaHQ checked Sep 20, 2026	1,001-5,000	5,391 contacts →
	Indirect evidence “STL is a global leader in advanced connectivity solutions, providing end-to-end solutions for building AI-ready infrastructure, FTTx, Rural, Enterprise and Data Centre networks.” Source: RevenueBase Database · checked Sep 20, 2026
4	Fiberhome	Indirect evidence	Wuhan, ChinaHQ checked Sep 20, 2026	10001+	4,327 contacts →
	Indirect evidence “FiberHome is an internationally renowned provider of ICT network products and solutions, Our mission is to maximize the potential of digital connections and benefit the society.” Source: RevenueBase Database · checked Sep 20, 2026
5	Tejas Networks	Partial evidence	Bangalore, IndiaHQ checked Sep 20, 2026	1,001-5,000	3,282 contacts →
	Partial evidence “Tejas Networks is a global broadband, optical and wireless networking company, with a focus on technology, innovation and R&D.” Source: RevenueBase Database · checked Sep 20, 2026
6	AFL	Indirect evidence	Duncan, SC, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,813 contacts →
	Indirect 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 20, 2026
7	Desktop	Indirect evidence	Sumaré, BrazilHQ checked Sep 20, 2026	1,001-5,000	2,354 contacts →
	Indirect evidence “A Desktop é uma empresa de telecomunicação comprometida em conectar você ao futuro com velocidade, estabilidade e inovação!” Source: RevenueBase Database · checked Sep 20, 2026
8	Lumentum	Partial evidence	San Jose, CA, United StatesHQ checked Sep 20, 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 20, 2026
9	Infinera	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,959 contacts →
	Indirect evidence “Infinera is now part of Nokia.” Source: RevenueBase Database · checked Sep 20, 2026
10	Huber Suhner	Partial evidence	Herisau, SwitzerlandHQ checked Sep 20, 2026	1,001-5,000	1,933 contacts →
	Partial evidence “HUBER+SUHNER designs and builds components and system solutions for electrical and optical connectivity.” Source: RevenueBase Database · checked Sep 20, 2026
11	Hotwire Communications LTD	Strong evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,420 contacts →
	Strong evidence “Hotwire Communications is a national leader in fiber optic technology, delivering advanced, customized telecommunications solutions to residential, commercial, senior-living…” Source: RevenueBase Database · checked Sep 20, 2026
12	LS Cable & System	Indirect evidence	Anyang-si, South KoreaHQ checked Sep 20, 2026	5,001-10,000	1,352 contacts →
	Indirect evidence “LS Cable & System \| Connecting the World with Smarter, Greener Cable Solutions LS Cable & System (LS C&S) is a global leader in power and communication cable solutions, driving…” Source: RevenueBase Database · checked Sep 20, 2026
13	Uniti Group INC	Partial evidence	Little Rock, AR, United StatesHQ checked Sep 20, 2026	501-1,000	1,247 contacts →
	Partial evidence “Uniti is a premier insurgent fiber provider dedicated to enabling mission-critical connectivity across the United States.” Source: RevenueBase Database · checked Sep 20, 2026
14	Shentel	Indirect evidence	Edinburg, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,186 contacts →
	Indirect evidence “Shentel has been keeping communities connected since 1902.” Source: RevenueBase Database · checked Sep 20, 2026
15	Subcom	Strong evidence	United StatesHQ checked Sep 20, 2026	1,001-5,000	1,185 contacts →
	Strong evidence “SubCom engineers, manufactures, and installs subsea fiber optic data cables - the unsung heroes of global communication.” Source: RevenueBase Database · checked Sep 20, 2026
16	Sabre Industries, INC	Indirect evidence	Alvarado, TX, MexicoHQ checked Sep 20, 2026	1,001-5,000	1,033 contacts →
	Indirect evidence “Sabre Industries’ culture of innovation is the driving force behind our trusted power utility, telecom, and data center solutions.” Source: RevenueBase Database · checked Sep 20, 2026
17	Dura-Line	Indirect evidence	Knoxville, TN, United StatesHQ checked Sep 20, 2026	1,001-5,000	983 contacts →
	Indirect evidence “About Orbia Connectivity Solutions (Dura-Line) Orbia’s Connectivity Solutions business, Dura-Line, is a leading manufacturer and distributor of high-density polyethylene (HDPE)…” Source: RevenueBase Database · checked Sep 20, 2026
18	SEGRA	Strong evidence	Charlotte, NC, United StatesHQ checked Sep 20, 2026	1,001-5,000	950 contacts →
	Strong evidence “Segra owns and operates a wide and dense fiber-optic infrastructure footprint that provides state-of-the-art connectivity, cybersecurity, voice, cloud and colocation solutions…” Source: RevenueBase Database · checked Sep 20, 2026
19	PT Mega Akses Persada Fiberstar	Indirect evidence	Jakarta, IndonesiaHQ checked Sep 20, 2026	501-1,000	831 contacts →
	Indirect evidence “Indonesia's robust IT market has paved the way for increasing demand in IT infrastructure, products and services.” Source: RevenueBase Database · checked Sep 20, 2026
20	OFS	Strong evidence	Norcross, GA, United StatesHQ checked Sep 20, 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 20, 2026
21	PLP	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 20, 2026	1,001-5,000	783 contacts →
	Indirect evidence “PLP protects the world’s most critical connections by creating stronger and more reliable networks.” Source: RevenueBase Database · checked Sep 20, 2026
22	Reichle & De-Massari	Indirect evidence	Wetzikon, SwitzerlandHQ checked Sep 20, 2026	1,001-5,000	735 contacts →
	Indirect evidence “Reichle & De-Massari AG (R&M) is an independent Swiss family-owned business with more than 60 years of experience in the information and communications technology markets.” Source: RevenueBase Database · checked Sep 20, 2026
23	Lumos Fiber	Strong evidence	High Point, NC, United StatesHQ checked Sep 20, 2026	501-1,000	717 contacts →
	Strong evidence “Lumos delivers 100% Fiber Optic Internet and Whole-Home Wi-Fi to a growing network of homes, businesses and multi-family buildings throughout the Midwest and Eastern US.” Source: RevenueBase Database · checked Sep 20, 2026
24	Altafiber	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 20, 2026	1,001-5,000	662 contacts →
	Indirect evidence “Born from a long, rich and proven history of serving communities through innovation and transformation, we are now taking our impact to another level to be even more for the…” Source: RevenueBase Database · checked Sep 20, 2026
25	Netceed	Indirect evidence	East Brunswick, NJ, United StatesHQ checked Sep 20, 2026	1,001-5,000	650 contacts →
	Indirect evidence “Netceed is a global infrastructure supply chain solutions platform that enables the critical networks modern society depends on and connects the world through integrated products…” Source: RevenueBase Database · checked Sep 20, 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: fiber optics companies. 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 fiber optics companies.
Partial evidence: Its own public description names part of fiber optics companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name fiber optics companies. 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 5,898 fiber optics companies worldwide

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Fiber optics companies worldwide at a glance

As of Sep 20, 2026

26.0%Verified-email coverage

24.8Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · Shenzhen

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

1,853

11-50

2,057

51-200

1,253

201-500

397

501-1,000

145

1,001-5,000

123

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 fiber optics companies, 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.
Coverage: Every country. Country and city lists for fiber optics companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “fiber optics companies”. 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 fiber optics companies), 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 fiber optics companies, and records with no verified work email.
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, 38,056 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 20, 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.

Fiber optics companies by location

24 lists · largest first

Every Fiber optics companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 fiber optics companies, 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 fiber optics companies are there worldwide?

RevenueBase identified 5,898 fiber optics companies worldwide 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?

Frontier Internet, headquartered in Dallas, tops this list with the largest team on record.

Which country has the most fiber optics companies?

The United States leads with 1,113 companies, followed by China (659) and Brazil (493). Every fiber optics companies list by country and city is linked on this page.

Which city has the most fiber optics companies?

Shenzhen leads with 217 headquartered companies, followed by Sao Paulo (45) and London (30).

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 38,056 verified decision-maker contacts tracked across these 5,898 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 20, 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.