Company lists · Data refreshed September 2026

Top 25 Enterprise telecom consulting companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 13,743 companies tracked

RevenueBase identified 13,743 enterprise telecom consulting companies worldwide as of September 2026 and tracks 255,469 professional contacts across them, including 48,111 with verified work emails and 18,643 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers enterprise 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 2, 2026. Country and city lists for enterprise 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

13,743Companies

255,469Contacts tracked

48,111Verified emails

18,643Mobile numbers

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The 25 largest enterprise telecom consulting companies worldwide

Ranked by team size

Top 25 of 13,743 enterprise telecom consulting companies worldwide, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise 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	Serede	Partial evidence	Rio De Janeiro, BR	10001+	8,035 contacts →
	Partial 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 2, 2026
2	Tata Communications Transformation Services Tcts	Indirect evidence	Mumbai, IndiaHQ checked Sep 2, 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 2, 2026
3	GTL Limited	Strong evidence	Navi Mumbai, IndiaHQ checked Sep 2, 2026	1,001-5,000	2,780 contacts →
	Strong 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 2, 2026
4	Airtel Business	Indirect evidence	Gurgaon, IndiaHQ checked Sep 2, 2026	10001+	2,760 contacts →
	Indirect evidence “The B2B arm of Bharti Airtel, we are India's leading provider of secure and reliable connectivity, technology, and communications solutions.” Source: RevenueBase Database · checked Sep 2, 2026
5	Rede Conecta	Partial evidence	Fortaleza, BR	10001+	2,446 contacts →
	Partial evidence “A Rede Conecta é uma empresa prestadora de serviços de implantação e manutenção em redes de Telecom.” Source: RevenueBase Database · checked Sep 2, 2026
6	LCC	Indirect evidence	Hertogenbosch, NL	5,001-10,000	2,189 contacts →
	Indirect evidence “In Feb.” Source: RevenueBase Database · checked Sep 2, 2026
7	Telecon	Partial evidence	Montreal, QC, CA	1,001-5,000	1,567 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 2, 2026
8	Tulip Telecom	Strong evidence	New Delhi, IndiaHQ checked Sep 2, 2026	1,001-5,000	1,481 contacts →
	Strong evidence “Tulip Telecom Ltd.(BSE: 532691/NSE: TULIP) is India’s leading Enterprise Communications Service provider.” Source: RevenueBase Database · checked Sep 2, 2026
9	Sofrecom Tunisie	Indirect evidence	Tunis, TunisiaHQ checked Sep 2, 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 2, 2026
10	Italtel	Indirect evidence	Milan, IT	1,001-5,000	1,280 contacts →
	Indirect evidence “We help our customers to choose the most suitable solutions for the characteristics of their business, to develop the traditional communication technologies they already have in…” Source: RevenueBase Database · checked Sep 2, 2026
11	Zelenza	Indirect evidence	Getafe, ES	1,001-5,000	1,123 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 2, 2026
12	Zinnov	Partial evidence	New York, NY, US	201-500	1,109 contacts →
	Partial evidence “Zinnov is a full-stack global management consulting firm specializing in GCC set-up and scale-up, M&A, PE advisory, AI strategy, and partner ecosystem growth for technology…” Source: RevenueBase Database · checked Sep 2, 2026
13	CCI Systems	Partial evidence	Iron Mountain, MI, US	1,001-5,000	1,082 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 2, 2026
14	ACP Gruppe	Partial evidence	Koln, DE	1,001-5,000	1,070 contacts →
	Partial evidence “ACP bietet herstellerunabhängig Consulting, Beschaffung und Integration, Managed Services, Datacenter Services sowie IT-Finanzierung für das gesamte IT-Sortiment und betreut…” Source: RevenueBase Database · checked Sep 2, 2026
15	Kelly Group	Indirect evidence	Wembley, GB	1,001-5,000	1,059 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 2, 2026
16	Mfec Public Company Limited	Indirect evidence	Chomphon, ThailandHQ checked Sep 2, 2026	1,001-5,000	980 contacts →
	Indirect evidence “MFEC Public Company Limited (PLC) established in 1997, is positioned as a premier IT service provider specializing in network computing and e-business, serving mainly large…” Source: RevenueBase Database · checked Sep 2, 2026
17	KGPCO	Indirect evidence	Faribault, MN, US	1,001-5,000	972 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 2, 2026
18	Líder Telecom Ltda	Partial evidence	Sao Paulo, BR	1,001-5,000	958 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 2, 2026
19	Multinet Pakistan Private Limited	Partial evidence	Karachi, PakistanHQ checked Sep 2, 2026	1,001-5,000	890 contacts →
	Partial evidence “Multinet Pakistan is one of the premier information and communication solution providers for leading enterprises in the region.” Source: RevenueBase Database · checked Sep 2, 2026
20	NTG Clarity	Strong evidence	Markham, ON, CA	501-1,000	868 contacts →
	Strong 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 2, 2026
21	NUMEN	Partial evidence	Wilmington, DE, US	501-1,000	822 contacts →
	Partial evidence “Numen is an international consultancy specialized in enterprise technologies.” Source: RevenueBase Database · checked Sep 2, 2026
22	Mundivox Communications	Indirect evidence	Sao Paulo, BR	501-1,000	817 contacts →
	Indirect evidence “Com mais de 25 anos de experiência, a Mundivox é uma operadora licenciada pela Anatel, especializada em soluções integradas de comunicação para o mercado corporativo.” Source: RevenueBase Database · checked Sep 2, 2026
23	Allied Telesis	Indirect evidence	Bothell, WA, US	1,001-5,000	811 contacts →
	Indirect evidence “Our world is increasing in complexity.” Source: RevenueBase Database · checked Sep 2, 2026
24	Bestel	Partial evidence	Cancun, MX	501-1,000	798 contacts →
	Partial evidence “Somos un equipo de expertos en Telecomunicaciones y Tecnologías de Información.” Source: RevenueBase Database · checked Sep 2, 2026
25	Network Techlab India Limited	Indirect evidence	Thane, IndiaHQ checked Sep 2, 2026	501-1,000	743 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 2, 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: enterprise 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 enterprise telecom consulting companies.
Partial evidence: Its own public description names part of enterprise 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 enterprise 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 13,743 enterprise telecom consulting companies worldwide

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Enterprise telecom consulting companies worldwide at a glance

As of Sep 2, 2026

18.8%Verified-email coverage

7.3%Mobile-number coverage

18.6Average contacts per company

11-50Median size (employees)

2.1%Largest-city concentration · Sao Paulo

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

6,682

11-50

4,777

51-200

1,566

201-500

377

501-1,000

131

1,001-5,000

5,001-10,000

10001+

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 enterprise 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: 58 countries, largest first: the United States, Brazil, India, the United Kingdom, France, Germany, Italy, Spain, Canada, Australia and 48 more. Country and city lists for enterprise telecom consulting companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “enterprise 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 enterprise 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 enterprise 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, 48,111 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 between September 2, 2026 and September 14, 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.

Enterprise telecom consulting companies by location

107 lists · largest first

Every Enterprise 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 enterprise 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 enterprise telecom consulting companies are there worldwide?

RevenueBase identified 13,743 enterprise 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?

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

Which country has the most enterprise telecom consulting companies?

The United States leads with 3,389 companies, followed by Brazil (1,060) and India (940). Every enterprise telecom consulting companies list by country and city is linked on this page.

Which city has the most enterprise telecom consulting companies?

Sao Paulo leads with 288 headquartered companies, followed by London (189) and Dubai (122).

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 48,111 verified decision-maker contacts tracked across these 13,743 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 2, 2026 and September 14, 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.