Company lists · Data refreshed September 2026

Top 25 Enterprise telecom audit firms worldwide

RevenueBase identified 849 enterprise telecom audit firms worldwide as of September 2026 and tracks 5,570 professional contacts across them, including 1,445 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers enterprise telecom audit firms 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 28, 2026. Country and city lists for enterprise telecom audit firms 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 28, 2026 86% judged on-target in blind review
849Companies
5,570Contacts tracked
1,445Verified emails
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The 25 largest enterprise telecom audit firms worldwide

Ranked by team size
Top 25 of 849 enterprise telecom audit firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise telecom audit firms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceGurgaon, IndiaHQ checked Sep 28, 2026201-500266 contacts →

Partial evidence

“Edge Telecom Pvt.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 2026201-500243 contacts →

Indirect evidence

“Thoropass is the only end-to-end cybersecurity auditor.”

Source: RevenueBase Database · checked Sep 28, 2026
3Strong evidenceNew Delhi, IndiaHQ checked Sep 28, 2026201-500170 contacts →

Strong evidence

“Eminence is a leading audit, survey and project management company providing Telecom, IT and Solar Industry related services to Large Corporate’s, Telecom Infra Providers, Active…”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceLahore, PakistanHQ checked Sep 28, 202611-50121 contacts →

Partial evidence

“KomKonsult Pvt Ltd established since 2001, is providing telecom professional services for Wireline, Wireless and Safe-City Network Rollout, Network Planning & Optimization…”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceWestlake, OH, United StatesHQ checked Sep 28, 202651-200117 contacts →

Indirect evidence

“Over 20 years ago, SpyGlass began with a vision of using the power of analysis for universal technology and communications savings.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceRoswell, GA, United StatesHQ checked Sep 28, 2026201-500110 contacts →

Indirect evidence

“Founded in SourceOne Corporation was acquired by Ms.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceCornelius, NC, United StatesHQ checked Sep 28, 202611-5082 contacts →

Indirect evidence

“Founded in 1996, TeleSource, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceSao Paulo, BrazilHQ checked Sep 28, 202651-20071 contacts →

Partial evidence

“For over 35 years, Sumus has been building its story alongside some of the largest companies in Brazil, offering technology, intelligence, and trust to transform telecom cost…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceNeuilly-plaisance, FranceHQ checked Sep 28, 202651-20064 contacts →

Indirect evidence

“GLOBAL PARTNER audite, optimise et manage les solutions de télécommunication et d'impression.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceForest Park, IL, United StatesHQ checked Sep 28, 202651-20063 contacts →

Partial evidence

“ICOMM is a services-first telecom management and consulting company, offering IT Telecom Expense Management, support services for fixed telephony, UCaaS and mobility services…”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceWest Long Branch, NJ, United StatesHQ checked Sep 28, 2026n/a63 contacts →

Indirect evidence

“The Abadi Group is expert at uncovering waste and overcharges, as well as reducing overall voice and data costs.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceSan Antonio, TX, United StatesHQ checked Sep 28, 202651-20054 contacts →

Partial evidence

“Our company is leading the Telecom BPO movement.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceBirmingham, AL, United StatesHQ checked Sep 28, 202611-5046 contacts →

Indirect evidence

“SecurIT360 is a unique company driven by Cyber knowledge and applying it to eliminate blind spots.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceWoodland Hills, CA, United StatesHQ checked Sep 28, 202651-20045 contacts →

Partial evidence

“IntraTEM helps U.S-based organizations take control of their technology and telecom spend.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceVendeville, FranceHQ checked Sep 28, 202611-5041 contacts →

Indirect evidence

“Services aux entreprises dans différents domaines des infrastructures informatique.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceAndover, United KingdomHQ checked Sep 28, 202651-20041 contacts →

Partial evidence

“Lynx-UK is a telecommunications engineering and network asset management company.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceConroe, TX, United StatesHQ checked Sep 28, 202651-20040 contacts →

Partial evidence

“Teligistics is the leading experts in helping companies cut their telecom costs while providing complete visibility into their networks solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceLondon, ON, CanadaHQ checked Sep 28, 202611-5039 contacts →

Indirect evidence

“Digital Boundary Group is an Information Technology Security Assurance Services firm serving clients throughout North America since 2003.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceBarueri, BrazilHQ checked Sep 28, 202611-5039 contacts →

Partial evidence

“K2A Partners is a Technology and Consulting firm focused in reducing and optimizing Telecom and IT costs.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceCiudad De México, MexicoHQ checked Sep 28, 202651-20039 contacts →

Partial evidence

“Our goal is to optimize our client’s telecom services to afford Digital Transformation.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceMadison, WI, United StatesHQ checked Sep 28, 202611-5038 contacts →

Partial evidence

“Discover telecom and technology expense management on your terms.”

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidencePune, IndiaHQ checked Sep 28, 202651-20036 contacts →

Strong evidence

“Insta ICT Solutions has been established in Pune, India in year 2015 and offers Telecom Network performance management services, Network analytics, site audit, deployment services…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidencePewee Valley, KY, United StatesHQ checked Sep 28, 202611-5035 contacts →

Indirect evidence

“TDM is a business solutions provider chartered to help business clients to fully understand their options for communications or business operations technologies, select the best…”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceMarlton, NJ, United StatesHQ checked Sep 28, 202611-5031 contacts →

Indirect evidence

“OpDecision is a leading provider of corporate wireless expense management services.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceBloomington, MN, United StatesHQ checked Sep 28, 20261-1030 contacts →

Partial evidence

“Since Mobile-Link Communications has been helping businesses of all sizes navigate the complex world of telecommunications.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 849 enterprise telecom audit firms worldwide

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Enterprise telecom audit firms worldwide at a glance

As of Sep 28, 2026
25.9%Verified-email coverage
6.6Average contacts per company
1-10Median size (employees)
2.9%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
521
11-50
253
51-200
60
201-500
8
501-1,000
2
1,001-5,000
1

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 enterprise telecom audit firms, 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 enterprise telecom audit firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “enterprise telecom audit firms”. 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 audit firms), 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 audit firms, 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, 1,445 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 28, 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 audit firms by location

5 lists · largest first

Every Enterprise telecom audit firms 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 enterprise telecom audit firms, 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 audit firms are there worldwide?

RevenueBase identified 849 enterprise telecom audit firms 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?

Edge Telecom Pvt. LTD, headquartered in Gurgaon, tops this list with the largest team on record.

Which country has the most enterprise telecom audit firms?

The United States leads with 260 companies, followed by Brazil (93) and France (86). Every enterprise telecom audit firms list by country and city is linked on this page.

Which city has the most enterprise telecom audit firms?

Sao Paulo leads with 25 headquartered companies, followed by Paris (12) and New York (11).

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 1,445 verified decision-maker contacts tracked across these 849 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 28, 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.