Company lists · Data refreshed September 2026

Top 25 Fiber optic consulting companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 9,246 companies tracked

RevenueBase identified 9,246 fiber optic consulting companies worldwide as of September 2026 and tracks 177,307 professional contacts across them, including 38,566 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers fiber optic consulting 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 19, 2026. Country and city lists for fiber optic consulting 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 19, 2026 86% judged on-target in blind review

9,246Companies

177,307Contacts tracked

38,566Verified emails

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The 25 largest fiber optic consulting companies worldwide

Ranked by team size

Top 25 of 9,246 fiber optic consulting companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to fiber optic consulting 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	Serede	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 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 19, 2026
2	Viavi Solutions	Indirect evidence	Chandler, AZ, United StatesHQ checked Sep 19, 2026	1,001-5,000	4,248 contacts →
	Indirect 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 19, 2026
3	Zayo Group	Indirect evidence	Denver, CO, United StatesHQ checked Sep 19, 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 19, 2026
4	AFL	Indirect evidence	Duncan, SC, United StatesHQ checked Sep 19, 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 19, 2026
5	Desktop	Indirect evidence	Sumaré, BrazilHQ checked Sep 19, 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 19, 2026
6	LCC	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 19, 2026	5,001-10,000	2,193 contacts →
	Indirect evidence “In Feb.” Source: RevenueBase Database · checked Sep 19, 2026
7	Infinera	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,959 contacts →
	Indirect evidence “Infinera is now part of Nokia.” Source: RevenueBase Database · checked Sep 19, 2026
8	Telecon	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	1,001-5,000	1,573 contacts →
	Indirect 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 19, 2026
9	Hotwire Communications LTD	Strong evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 19, 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 19, 2026
10	Sofrecom Tunisie	Indirect evidence	Tunis, TunisiaHQ checked Sep 19, 2026	1,001-5,000	1,397 contacts →
	Indirect evidence “Sofrecom, filiale du groupe France Télécom - Orange, a développé depuis plus de 45 ans un savoir-faire unique dans les métiers de l’opérateur, qui en fait aujourd’hui l’un des…” Source: RevenueBase Database · checked Sep 19, 2026
11	Subcom	Strong evidence	United StatesHQ checked Sep 19, 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 19, 2026
12	CCI Systems	Indirect evidence	Iron Mountain, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,077 contacts →
	Indirect evidence “CCI Systems is an employee-owned solution provider specializing in telecommunications, comprehensive network assessments, industry-leading engineering, drafting and design…” Source: RevenueBase Database · checked Sep 19, 2026
13	Kelly Group	Indirect evidence	Wembley, United KingdomHQ checked Sep 19, 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 19, 2026
14	KGPCO	Indirect evidence	Faribault, MN, United StatesHQ checked Sep 19, 2026	1,001-5,000	974 contacts →
	Indirect 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 19, 2026
15	Líder Telecom Ltda	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	959 contacts →
	Indirect evidence “A Líder Telecom oferece aos clientes serviços de assessoria necessária ao estabelecimento de seu planejamento técnico e operacional para atendimento a redes corporativas de…” Source: RevenueBase Database · checked Sep 19, 2026
16	SEGRA	Strong evidence	Charlotte, NC, United StatesHQ checked Sep 19, 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 19, 2026
17	NTG Clarity	Indirect evidence	Markham, ON, CanadaHQ checked Sep 19, 2026	501-1,000	876 contacts →
	Indirect evidence “NTG CLARITY is a leader in delivering network, telecom, IT and infrastructure solutions to network service providers and medium and large enterprises.” Source: RevenueBase Database · checked Sep 19, 2026
18	PT Mega Akses Persada Fiberstar	Indirect evidence	Jakarta, IndonesiaHQ checked Sep 19, 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 19, 2026
19	OFS	Strong evidence	Norcross, GA, United StatesHQ checked Sep 19, 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 19, 2026
20	Allied Telesis	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	816 contacts →
	Indirect evidence “Our world is increasing in complexity.” Source: RevenueBase Database · checked Sep 19, 2026
21	Lumos Fiber	Strong evidence	High Point, NC, United StatesHQ checked Sep 19, 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 19, 2026
22	Westower Communications LTD	Indirect evidence	Spruce Grove, AB, CanadaHQ checked Sep 19, 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 19, 2026
23	Nexwave Technologies	Indirect evidence	SingaporeHQ checked Sep 19, 2026	201-500	702 contacts →
	Indirect evidence “Nexwave Technologies is a regional provider of telecommunication network engineering services.” Source: RevenueBase Database · checked Sep 19, 2026
24	Immco INC	Indirect evidence	Canton, GA, IndiaHQ checked Sep 19, 2026	1,001-5,000	692 contacts →
	Indirect evidence “Founded in 1992, IMMCO is a global provider of network design, GIS, and software solutions for the broadband and telecommunications industries.” Source: RevenueBase Database · checked Sep 19, 2026
25	Smartlink Group	Indirect evidence	Annapolis, MD, United StatesHQ checked Sep 19, 2026	501-1,000	689 contacts →
	Indirect evidence “Smartlink powers the digital infrastructure behind today’s connected world.” Source: RevenueBase Database · checked Sep 19, 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 consulting 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 optic consulting companies.
Partial evidence: Its own public description names part of fiber optic consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name fiber optic consulting 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 9,246 fiber optic consulting companies worldwide

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Fiber optic consulting companies worldwide at a glance

As of Sep 19, 2026

21.8%Verified-email coverage

19.2Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Shenzhen

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

3,712

11-50

3,281

51-200

1,528

201-500

429

501-1,000

137

1,001-5,000

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 consulting 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 optic consulting companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “fiber optic consulting 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 optic consulting 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 optic consulting 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, 38,566 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 19, 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 consulting companies by location

35 lists · largest first

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

Countries

Cities

Fiber optic consulting companies based in Sao Paulo, Brazil86

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 consulting 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 optic consulting companies are there worldwide?

RevenueBase identified 9,246 fiber optic consulting 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?

Serede, headquartered in Rio De Janeiro, tops this list with the largest team on record.

Which country has the most fiber optic consulting companies?

The United States leads with 1,879 companies, followed by Brazil (854) and the United Kingdom (463). Every fiber optic consulting companies list by country and city is linked on this page.

Which city has the most fiber optic consulting companies?

Shenzhen leads with 157 headquartered companies, followed by Sao Paulo (86) and Paris (59).

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 38,566 verified decision-maker contacts tracked across these 9,246 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 19, 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.