Company lists · Data refreshed September 2026

Top 25 Fiber optic network installers worldwide

Name: Fiber optic network installers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 7,788 companies tracked

RevenueBase identified 7,788 fiber optic network installers worldwide as of September 2026 and tracks 197,112 professional contacts across them, including 45,835 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers fiber optic network installers 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 optic network installers 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

7,788Companies

197,112Contacts tracked

45,835Verified emails

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The 25 largest fiber optic network installers worldwide

Ranked by team size

Top 25 of 7,788 fiber optic network installers worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to fiber optic network installers: 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	Serede	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	10001+	8,011 contacts →
	Indirect evidence “A Serede é uma empresa prestadora de serviços de implantação e manutenção em redes de Telecom, fundada em 06 de agosto de 2007.” Source: RevenueBase Database · checked Sep 20, 2026
3	Windstream	Indirect evidence	Little Rock, AR, United StatesHQ checked Sep 20, 2026	10001+	7,275 contacts →
	Indirect evidence “Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
4	Viavi Solutions	Partial evidence	Chandler, AZ, United StatesHQ checked Sep 20, 2026	1,001-5,000	4,248 contacts →
	Partial evidence “VIAVI Solutions (NASDAQ: VIAV) is a global leader in both network and service enablement and optical security performance products and solutions.” Source: RevenueBase Database · checked Sep 20, 2026
5	Circet	Indirect evidence	Paris, FranceHQ checked Sep 20, 2026	10001+	3,901 contacts →
	Indirect evidence “A global player in the telecom infrastructure services industry, the Circet Group provides operators, local authorities and key accounts throughout the world with an integrated…” Source: RevenueBase Database · checked Sep 20, 2026
6	Zayo Group	Indirect evidence	Denver, CO, United StatesHQ checked Sep 20, 2026	5,001-10,000	2,948 contacts →
	Indirect evidence “For more than 18 years, Zayo Group of companies has helped the world’s most ambitious organizations build the infrastructure behind what’s next.” Source: RevenueBase Database · checked Sep 20, 2026
7	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
8	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
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	Metronet	Partial evidence	Evansville, IN, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,938 contacts →
	Partial evidence “Metronet, the nation's fastest-growing fiber-to-the-home builder, is now owned by a joint venture of T-Mobile, America's 5G leader, and KKR, the global investment firm.” Source: RevenueBase Database · checked Sep 20, 2026
11	Congruex	Indirect evidence	Boulder, CO, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,676 contacts →
	Indirect evidence “Congruex was formed in 2017 to take advantage of historic demand for digital connectivity.” Source: RevenueBase Database · checked Sep 20, 2026
12	Telecon	Partial evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	1,001-5,000	1,573 contacts →
	Partial evidence “From a regional telecom networks builder in 1967 in Quebec (Canada), Telecon has grown into a world-class industry-leading telecom networks design, infrastructure and connectivity…” Source: RevenueBase Database · checked Sep 20, 2026
13	Pt. Mora Telematika Indonesia TBK	Indirect evidence	Jakarta Pusat, IndonesiaHQ checked Sep 20, 2026	1,001-5,000	1,510 contacts →
	Indirect evidence “Moratelindo is part of PT Ekamas Mora RepublikTbk (MoraRepublic), one of Indonesia’s largest integrated infrastructure Telecommunication and connectivity providers.” Source: RevenueBase Database · checked Sep 20, 2026
14	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
15	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
16	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
17	Kelly Group	Indirect evidence	Wembley, United KingdomHQ checked Sep 20, 2026	1,001-5,000	1,053 contacts →
	Indirect evidence “Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.” Source: RevenueBase Database · checked Sep 20, 2026
18	KGPCO	Partial evidence	Faribault, MN, United StatesHQ checked Sep 20, 2026	1,001-5,000	974 contacts →
	Partial evidence “KGPCo is a key strategic partner to the world’s leading communication and technology companies creating the next generation of networks.” Source: RevenueBase Database · checked Sep 20, 2026
19	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
20	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
21	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
22	Nokia Shanghai Bell	Indirect evidence	上海, ChinaHQ checked Sep 20, 2026	10001+	789 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
23	ITG Communications, LLC	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 20, 2026	1,001-5,000	765 contacts →
	Indirect evidence “Founded in 2013, ITG is a national provider of end-to-end digital infrastructure services delivered through a turnkey model.” Source: RevenueBase Database · checked Sep 20, 2026
24	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
25	Westower Communications LTD	Indirect evidence	Spruce Grove, AB, CanadaHQ checked Sep 20, 2026	201-500	711 contacts →
	Indirect evidence “WesTower Communications is Canada’s largest Telecommunications construction company and is committed to meeting the dynamic needs of today’s wireless telecommunications and…” 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 optic network installers. 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 optic network installers.
Partial evidence: Its own public description names part of fiber optic network installers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name fiber optic network installers. 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 7,788 fiber optic network installers worldwide

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Fiber optic network installers worldwide at a glance

As of Sep 20, 2026

23.3%Verified-email coverage

25.3Average contacts per company

11-50Median size (employees)

0.9%Largest-city concentration · Sao Paulo

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

2,968

11-50

2,890

51-200

1,302

201-500

332

501-1,000

125

1,001-5,000

100

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 optic network installers, 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 optic network installers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “fiber optic network installers”. 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 optic network installers), 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 optic network installers, 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, 45,835 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 optic network installers by location

44 lists · largest first

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

Countries

Cities

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 optic network installers, 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 optic network installers are there worldwide?

RevenueBase identified 7,788 fiber optic network installers 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 optic network installers?

The United States leads with 1,784 companies, followed by Brazil (709) and the United Kingdom (513). Every fiber optic network installers list by country and city is linked on this page.

Which city has the most fiber optic network installers?

Sao Paulo leads with 70 headquartered companies, followed by Shenzhen (49) and London (48).

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 45,835 verified decision-maker contacts tracked across these 7,788 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.