Company lists · Data refreshed September 2026

Top 25 Telecom transformation consultants based in Chicago, United States

Name: Telecom transformation consultants based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 78 companies tracked

RevenueBase identified 78 telecom transformation consultants headquartered in Chicago, United States as of September 2026 and tracks 1,347 professional contacts across them, including 517 with verified work emails. New York is the largest hub.

This list covers telecom transformation consultants headquartered in Chicago, United States, 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.

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

78Companies

1,347Contacts tracked

517Verified emails

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The 25 largest telecom transformation consultants based in Chicago, United States

Ranked by team size

Top 25 of 78 telecom transformation consultants based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to telecom transformation consultants: 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	NITEL	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	274 contacts →
	Indirect evidence “As of April 1, 2025, Nitel was officially acquired by Comcast Business, joining forces to deliver even more powerful and streamlined technology solutions.” Source: RevenueBase Database · checked Sep 19, 2026
2	Avant Communications	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	263 contacts →
	Indirect evidence “As the nation’s premier distributor of next generation technologies, AVANT has the resources and relationships needed to successfully navigate the ever-changing world of…” Source: RevenueBase Database · checked Sep 19, 2026
3	Glotel, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	219 contacts →
	Partial evidence “Founded in 1989, Glotel opened its doors as a telecom staffing provider.” Source: RevenueBase Database · checked Sep 19, 2026
4	CGN Global	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	104 contacts →
	Partial evidence “A Chicago-based firm with offices in Mexico, the UK, France, Turkey, India, and China, providing supply chain, digital, strategy and transformation consulting services to…” Source: RevenueBase Database · checked Sep 19, 2026
5	Aberdeen Advisors LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	85 contacts →
	Partial evidence “Headquartered in Chicago, with satellite offices in India and Mexico, Aberdeen Advisors LLC is a boutique digital consultancy providing innovative products and services.” Source: RevenueBase Database · checked Sep 19, 2026
6	Revel Labs	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	31 contacts →
	Partial evidence “Revel Labs was founded from a legacy of leading Fortune 500 companies through technology fueled transformation, from ecommerce to cloud enablement to AI.” Source: RevenueBase Database · checked Sep 19, 2026
7	Pearl Consulting Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence “Pearl Consulting Group is a global IT consulting firm dedicated to helping businesses navigate the complexities of technology with confidence.” Source: RevenueBase Database · checked Sep 19, 2026
8	I.Q. Technologies, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “Just like people, every business is unique in its own specific way.” Source: RevenueBase Database · checked Sep 19, 2026
9	Avatria, A Transperfect Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	n/a	14 contacts →
	Indirect evidence “Avatria is the dedicated digital consulting arm of, a global leader in professional services and globalization solutions.” Source: RevenueBase Database · checked Sep 19, 2026
10	Next Dynamics	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “Next Dynamics is a management consulting and technology solutions firm focused on helping organizations navigate and execute meaningful digital transformation.” Source: RevenueBase Database · checked Sep 19, 2026
11	Eclipse	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	10 contacts →
	Partial evidence “One of the nation's leading telecommunications consulting firms.” Source: RevenueBase Database · checked Sep 19, 2026
12	Rise Technology Advisors	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “We shepherd businesses into the next generation of technology.” Source: RevenueBase Database · checked Sep 19, 2026
13	Stern Recruiting	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	7 contacts →
	Partial evidence “Industry experts in telecom, technology & cloud” Source: RevenueBase Database · checked Sep 19, 2026
14	365 Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Born and raised in the Cloud!” Source: RevenueBase Database · checked Sep 19, 2026
15	Braincloud Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “BrainCloud Group is a trusted advisor to any enterprise looking to stay ahead of the rapid pace of innovation in communication, collaboration, automation and cybersecurity…” Source: RevenueBase Database · checked Sep 19, 2026
16	Trinumstudio	Strong evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	5 contacts →
	Strong evidence “TrinumStudio® is a leading digital transformation consultancy that empowers organizations to harness the power of technology to drive innovation, efficiency, and growth.” Source: RevenueBase Database · checked Sep 19, 2026
17	Aptive Solutions	Partial evidence	Chicago, United StatesHQ checked Sep 19, 2026	11-50	3 contacts →
	Partial evidence “Aptive Solutions is a Digital Consulting firm focused on Advisory and Implementation services on Digital Transformation projects, Big data Implementation using AWS and Azure cloud…” Source: RevenueBase Database · checked Sep 19, 2026
18	Arcy Adele	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “We are a tech and operations consulting agency- Now operating a CEO Quick Launch Our company’s competitive edge is our combination of sales strategy, supply chain/operations, and…” Source: RevenueBase Database · checked Sep 19, 2026
19	Gravitypath	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Successful digital infrastructure C-Suite leaders who bring our experience, methods, relationships, expert resources, and passion for delivering superior outcomes to our client…” Source: RevenueBase Database · checked Sep 19, 2026
20	Three Horizon Advisors, Inc. 3ha	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Three Horizon Advisors, Inc.(3HA) is a boutique strategy consulting firm focused on the telecom and technology sectors.” Source: RevenueBase Database · checked Sep 19, 2026
21	Arkestrate, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Complex digital transformations are difficult to define, troublesome to coordinate and a challenge to manage.” Source: RevenueBase Database · checked Sep 19, 2026
22	Sahnalink	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Partners in your digital transformation journey!” Source: RevenueBase Database · checked Sep 19, 2026
23	Sopris Technologies, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
24	Falstad Consulting	Indirect evidence	Chicago, United StatesHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Falstad Consulting was established in 2016 with a focus on operations and turnaround management.” Source: RevenueBase Database · checked Sep 19, 2026
25	Transparent Analysis	Partial evidence	Chicago, United StatesHQ checked Sep 19, 2026	1-10	1 contacts →
	Partial evidence “Transparent Analysis provides management consulting services to small and medium sized businesses in the telecom and technology sectors.” 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: telecom transformation consultants. 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 transformation consultants.
Partial evidence: Its own public description names part of telecom transformation consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecom transformation consultants. 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 78 telecom transformation consultants based in Chicago, United States

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Telecom transformation consultants based in Chicago, United States at a glance

As of Sep 19, 2026

38.4%Verified-email coverage

17.3Average contacts per company

1-10Median size (employees)

164.1%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 78 companies.

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 transformation consultants, 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.
What qualifies: Companies headquartered in Chicago, United States whose own description of what they do matches “telecom transformation consultants”. 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 transformation consultants), 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 transformation consultants, and records with no verified work email. Companies headquartered outside Chicago are excluded even when they keep an office there.
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, 517 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.

Telecom transformation consultants by metro in the United States

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 transformation consultants, 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 transformation consultants are there based in Chicago, United States?

RevenueBase identified 78 telecom transformation consultants headquartered in Chicago, United States 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?

NITEL, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most telecom transformation consultants?

New York leads with 128 headquartered companies, followed by Chicago (78) and Dallas (74).

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 517 verified decision-maker contacts tracked across these 78 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.