Company lists · Data refreshed September 2026

Top 25 Telecom consulting companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 11,604 companies tracked

RevenueBase identified 11,604 telecom consulting companies worldwide as of September 2026 and tracks 197,704 professional contacts across them, including 37,181 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers telecom 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 21, 2026. Country and city lists for telecom 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 21, 2026 86% judged on-target in blind review

11,604Companies

197,704Contacts tracked

37,181Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest telecom consulting companies worldwide

Ranked by team size

Top 25 of 11,604 telecom consulting companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to telecom 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	Icomon Tecnologia Ltda	Partial evidence	São Paulo, BrazilHQ checked Sep 21, 2026	10001+	4,895 contacts →
	Partial evidence “A Icomon atua há 37 anos com alta performance em tecnologia e telecomunicações.” Source: RevenueBase Database · checked Sep 21, 2026
2	Amaris Consulting	Partial evidence	Chêne-bourg, SwitzerlandHQ checked Sep 21, 2026	5,001-10,000	4,824 contacts →
	Partial evidence “Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses.” Source: RevenueBase Database · checked Sep 21, 2026
3	Tata Communications Transformation Services Tcts	Indirect evidence	Mumbai, IndiaHQ checked Sep 21, 2026	1,001-5,000	4,599 contacts →
	Indirect evidence “Tata Communications Transformation Services (TCTS), a 100% subsidiary of Tata Communications Ltd, provides business transformation, managed network operations, network…” Source: RevenueBase Database · checked Sep 21, 2026
4	Management Solutions	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	1,001-5,000	4,468 contacts →
	Partial evidence “Management Solutions is a leading provider of business consulting services for regulated industries.” Source: RevenueBase Database · checked Sep 21, 2026
5	Alten Italia	Indirect evidence	Milano, ItalyHQ checked Sep 21, 2026	1,001-5,000	3,085 contacts →
	Indirect evidence “Il Gruppo ALTEN, leader europeo nella consulenza per le tecnologie avanzate in campo ingegneristico e ICT, è quotato alla Borsa di Parigi e vanta più di 57.700 collaboratori in…” Source: RevenueBase Database · checked Sep 21, 2026
6	GTL Limited	Partial evidence	Navi Mumbai, IndiaHQ checked Sep 21, 2026	1,001-5,000	2,780 contacts →
	Partial evidence “GTL, a Global Group Enterprise, is a leading Network Services company, offering services and solutions to address the Network Life Cycle requirements of Telecom Operators…” Source: RevenueBase Database · checked Sep 21, 2026
7	LCC	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 21, 2026	5,001-10,000	2,193 contacts →
	Indirect evidence “In Feb.” Source: RevenueBase Database · checked Sep 21, 2026
8	Telecon	Partial evidence	Montreal, QC, CanadaHQ checked Sep 21, 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 21, 2026
9	Pt. Mora Telematika Indonesia TBK	Partial evidence	Jakarta Pusat, IndonesiaHQ checked Sep 21, 2026	1,001-5,000	1,510 contacts →
	Partial 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 21, 2026
10	Sofrecom Tunisie	Indirect evidence	Tunis, TunisiaHQ checked Sep 21, 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 21, 2026
11	Zelenza	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	1,001-5,000	1,125 contacts →
	Indirect evidence “En Zelenza somos líderes en servicios integrados TIC, Ingeniería de Redes Telco, Defensa y Seguridad y Customer Experience.” Source: RevenueBase Database · checked Sep 21, 2026
12	CCI Systems	Partial evidence	Iron Mountain, MI, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,077 contacts →
	Partial 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 21, 2026
13	Kelly Group	Indirect evidence	Wembley, United KingdomHQ checked Sep 21, 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 21, 2026
14	Líder Telecom Ltda	Partial evidence	São Paulo, BrazilHQ checked Sep 21, 2026	1,001-5,000	959 contacts →
	Partial 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 21, 2026
15	Ervin Cable Construction LLC	Partial evidence	Sturgis, KY, United StatesHQ checked Sep 21, 2026	1,001-5,000	949 contacts →
	Partial evidence “Ervin Cable Construction, LLC (ECC) is a seasoned leader in telecommunications construction, founded in 1980.” Source: RevenueBase Database · checked Sep 21, 2026
16	NTG Clarity	Partial evidence	Markham, ON, CanadaHQ checked Sep 21, 2026	501-1,000	876 contacts →
	Partial 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 21, 2026
17	Allied Telesis	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	816 contacts →
	Indirect evidence “Our world is increasing in complexity.” Source: RevenueBase Database · checked Sep 21, 2026
18	Ansco & Associates, LLC	Indirect evidence	Norcross, GA, United StatesHQ checked Sep 21, 2026	1,001-5,000	810 contacts →
	Indirect evidence “Ansco & Associates, LLC (“Ansco”) has been providing engineering, construction, and professional services in the national marketplace for over 35 years.” Source: RevenueBase Database · checked Sep 21, 2026
19	Nunsys	Indirect evidence	Paterna, SpainHQ checked Sep 21, 2026	1,001-5,000	739 contacts →
	Indirect evidence “NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.” Source: RevenueBase Database · checked Sep 21, 2026
20	Westower Communications LTD	Partial evidence	Spruce Grove, AB, CanadaHQ checked Sep 21, 2026	201-500	711 contacts →
	Partial 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 21, 2026
21	Tower Engineering Professionals	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 21, 2026	1,001-5,000	707 contacts →
	Indirect evidence “Tower Engineer Professionals was founded in 1997 by two tower-climbing engineers.” Source: RevenueBase Database · checked Sep 21, 2026
22	Nexwave Technologies	Partial evidence	SingaporeHQ checked Sep 21, 2026	201-500	702 contacts →
	Partial evidence “Nexwave Technologies is a regional provider of telecommunication network engineering services.” Source: RevenueBase Database · checked Sep 21, 2026
23	OFG	Partial evidence	Córdoba, SpainHQ checked Sep 21, 2026	1,001-5,000	701 contacts →
	Partial evidence “OFG is an international company with more than 20 years of experience in the telecommunications sector.” Source: RevenueBase Database · checked Sep 21, 2026
24	Teleysia Networks I Pvt. LTD	Partial evidence	Ahmedabad, IndiaHQ checked Sep 21, 2026	501-1,000	698 contacts →
	Partial evidence “Teleysia Networks has started operations since April 2008 and it is an innovative, efficient and effective solution providing telecom Consultancy Company with mission to become…” Source: RevenueBase Database · checked Sep 21, 2026
25	Immco INC	Partial evidence	Canton, GA, IndiaHQ checked Sep 21, 2026	1,001-5,000	692 contacts →
	Partial 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 21, 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: telecom 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 telecom consulting companies.
Partial evidence: Its own public description names part of telecom consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecom 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 11,604 telecom consulting companies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 37,181 reachable decision-makers.

Free signup · no credit card

View the full list →

Telecom consulting companies worldwide at a glance

As of Sep 21, 2026

18.8%Verified-email coverage

17.0Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

5,934

11-50

3,771

51-200

1,284

201-500

358

501-1,000

112

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 telecom 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 telecom consulting companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “telecom 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 telecom 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 telecom 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, 37,181 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 21, 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.

Telecom consulting companies by location

54 lists · largest first

Every Telecom consulting companies 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 telecom 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 telecom consulting companies are there worldwide?

RevenueBase identified 11,604 telecom 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?

Icomon Tecnologia Ltda, headquartered in Sao Paulo, tops this list with the largest team on record.

Which country has the most telecom consulting companies?

The United States leads with 2,265 companies, followed by Brazil (911) and the United Kingdom (559). Every telecom consulting companies list by country and city is linked on this page.

Which city has the most telecom consulting companies?

Sao Paulo leads with 205 headquartered companies, followed by London (142) and Madrid (95).

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 37,181 verified decision-maker contacts tracked across these 11,604 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 11,604 telecom consulting companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.