Company lists · Data refreshed September 2026

Top 25 Customer service consulting companies based in Chicago, United States

Name: Customer service consulting companies 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 148 companies tracked

RevenueBase identified 148 customer service consulting companies headquartered in Chicago, United States as of September 2026 and tracks 1,238 professional contacts across them, including 179 with verified work emails. New York is the largest hub.

This list covers customer service consulting companies 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

148Companies

1,238Contacts tracked

179Verified emails

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The 25 largest customer service consulting companies based in Chicago, United States

Ranked by team size

Top 25 of 148 customer service consulting companies 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 customer service 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	Miller Heiman Group, A Korn Ferry Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	501-1,000	371 contacts →
	Indirect evidence “Miller Heiman Group is now part of Korn Ferry.” Source: RevenueBase Database · checked Sep 19, 2026
2	Bluerock	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	53 contacts →
	Indirect evidence “BlueROCK was founded on the premise that all companies should have a trusted partner for unbiased technology advice and guidance.” Source: RevenueBase Database · checked Sep 19, 2026
3	Mars-Technominds, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	43 contacts →
	Partial evidence “MARS-Technominds has indeed come a long way in setting high standards in technology and consulting services and has certainly proved to be a force to reckon with since its…” Source: RevenueBase Database · checked Sep 19, 2026
4	Acliviti	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	38 contacts →
	Partial evidence “At Acliviti, we believe exceptional customer experience isn’t just a tech initiative - it’s a strategic advantage.” Source: RevenueBase Database · checked Sep 19, 2026
5	Voyage Advisory	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “Voyage’s team of management consultants work side-by-side with leaders to achieve their top objectives and solve their toughest problems.” Source: RevenueBase Database · checked Sep 19, 2026
6	Unbiased Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “We are UNBIASED, experienced, consultants that help law firms and law departments improve client service delivery, enhance business operations and leverage technology solutions.” Source: RevenueBase Database · checked Sep 19, 2026
7	Sidago Integrated Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	13 contacts →
	Indirect evidence “Sidago Integrated Solutions is a full service outsourcing consultation business that provides small to large sized business solutions.” Source: RevenueBase Database · checked Sep 19, 2026
8	Gillum Strategy Partners	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	10 contacts →
	Partial evidence “Gillum Strategy Partners is a boutique management consulting firm with a focus on the creation and execution of strategies that deliver demonstrable value.” Source: RevenueBase Database · checked Sep 19, 2026
9	Boru INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Boru helps small businesses increase sales and improve service results- We help you understand the optimum steps that will lead to accelerated sales and then build momentum toward…” Source: RevenueBase Database · checked Sep 19, 2026
10	RAO Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “RAO Solutions was formed to affect positive, qualitative and quantitative change within your organization.” Source: RevenueBase Database · checked Sep 19, 2026
11	Moran Consulting, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	6 contacts →
	Strong evidence “Since 1997, Moran Consulting has created customized customer service training solutions for more than 700 organizations in a variety of industries across the world.” Source: RevenueBase Database · checked Sep 19, 2026
12	Digital Primates	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Recognized as experts who work at the forefront of new technologies, Digital Primates brings a unique approach to our client engagements.” Source: RevenueBase Database · checked Sep 19, 2026
13	Bumper Lanes	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Helping companies and people become better versions of themselves through marketing strategy, messaging, and focusing on constant improvement to people, process, product, and…” Source: RevenueBase Database · checked Sep 19, 2026
14	Eguide Tech Allies	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	4 contacts →
	Partial evidence “OUR MISSION To keep our clients tech savvy by enriching lives and growing businesses through technology consulting, implementation, and training.” Source: RevenueBase Database · checked Sep 19, 2026
15	BEN Jacobson Consultants	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Ben Jacobson Consultants was founded in 2001 and has been helping businesses operate with maximum efficiency ever since.” Source: RevenueBase Database · checked Sep 19, 2026
16	Avenir Design LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “Avenir Design helps businesses improve their customer experiences.” Source: RevenueBase Database · checked Sep 19, 2026
17	Topout Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “TopOut Group is a Chicago, Illinois based tech services consulting company.” Source: RevenueBase Database · checked Sep 19, 2026
18	Stampley Technology And Management, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “ST & M, LLC is a full-service technology consulting firm targeting small to midsize companies lacking the budget for full-time IT departments and staff.” Source: RevenueBase Database · checked Sep 19, 2026
19	CCM Consulting Group, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	3 contacts →
	Partial evidence “CCM Consulting Group provides staffing assistance to a variety of industries and provides virtual call center operations services.” Source: RevenueBase Database · checked Sep 19, 2026
20	PWW Consulting	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	3 contacts →
	Partial evidence “Founded in 2005, PWW Consulting is the culmination of decades of management consulting and strategic planning on behalf of a broad range of client partners that require more…” Source: RevenueBase Database · checked Sep 19, 2026
21	Axios Partners INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “Axios leads clients to innovate and manage their customer value for revenue and profit growth.” Source: RevenueBase Database · checked Sep 19, 2026
22	Arcy Adele	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial 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
23	The Experience Maker, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “A remarkable customer experience is your best sales and marketing strategy.” Source: RevenueBase Database · checked Sep 19, 2026
24	The Neale Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “The Neale Group finds the opportunities at the intersection of customer need and business strategy.” Source: RevenueBase Database · checked Sep 19, 2026
25	Mcgarity Consulting Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	2 contacts →
	Partial evidence “At McGarity LLC, we specialize in providing comprehensive consulting and strategy solutions tailored to meet the unique needs of businesses across diverse industries.” 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: customer service 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 customer service consulting companies.
Partial evidence: Its own public description names part of customer service consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer service 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 148 customer service consulting companies based in Chicago, United States

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Customer service consulting companies based in Chicago, United States at a glance

As of Sep 19, 2026

14.5%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

153.4%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

106

11-50

51-200

201-500

501-1,000

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 148 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 customer service 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.
What qualifies: Companies headquartered in Chicago, United States whose own description of what they do matches “customer service 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 customer service 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 customer service consulting companies, 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, 179 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.

Customer service consulting companies by metro in the United States

Customer service consulting companies in New York227
Customer service consulting companies in Chicago148
Customer service consulting companies in Atlanta143
Customer service consulting companies in Houston137
Customer service consulting companies in Los Angeles117
Customer service consulting companies in Dallas107
Customer service consulting companies in Miami87
Customer service consulting companies in Austin80
Customer service consulting companies in Denver76
Customer service consulting companies in San Francisco76
Customer service consulting companies in Boston72
Customer service consulting companies in Washington64
Customer service consulting companies in Seattle62
Customer service consulting companies in Minneapolis60
Customer service consulting companies in Orlando59
Customer service consulting companies in Phoenix57
Customer service consulting companies in Charlotte55
Customer service consulting companies in Tampa52
Customer service consulting companies in San Diego50
Customer service consulting companies in Cincinnati38
Customer service consulting companies in Philadelphia38
Customer service consulting companies in San Antonio38
Customer service consulting companies in Scottsdale38
Customer service consulting companies in Las Vegas37
Customer service consulting companies in Columbus33
Customer service consulting companies in Raleigh30
Customer service consulting companies in Portland29
Customer service consulting companies in Salt Lake City27
Customer service consulting companies in Fort Lauderdale26
Customer service consulting companies in Wilmington26
Customer service consulting companies in Baltimore25

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 customer service 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 customer service consulting companies are there based in Chicago, United States?

RevenueBase identified 148 customer service consulting companies 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?

Miller Heiman Group, A Korn Ferry Company, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most customer service consulting companies?

New York leads with 227 headquartered companies, followed by Chicago (148) and Atlanta (143).

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 179 verified decision-maker contacts tracked across these 148 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.