Company lists · Data refreshed September 2026

Top 20 IT consulting services based in Chicago, United States

Name: IT consulting services based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 481 companies tracked

RevenueBase identified 481 IT consulting services headquartered in Chicago, United States as of September 2026 and tracks 7,391 professional contacts across them, including 2,968 with verified work emails. New York is the largest hub.

This list covers IT consulting services 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

481Companies

7,391Contacts tracked

2,968Verified emails

Unlock all 481 companies Free signup · no credit card · 500 free credits

The 20 largest IT consulting services based in Chicago, United States

Ranked by team size

Top 20 of 481 IT consulting services based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT consulting services: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	AaretePartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	201-500	538
	“AArete is a global management and technology consulting firm specializing in driving profitability improvement, digital transformation, and strategy & change for clients.” Source: company website · checked Sep 4, 2026
2	SDI PresencePartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	201-500	389
	“SDI Presence LLC is an IT consultancy and managed services provider (MSP) that leverages its strong team presence to advance our clients to a secure digital enterprise.” Source: company website · checked Sep 4, 2026
3	Krasan Consulting ServicesPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	201-500	168
	“Krasan Consulting Services is a Chicago-based boutique management consulting and technology solutions integrator.” Source: company website · checked Sep 4, 2026
4	RKONPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	164
	“Since 1998, RKON has delivered IT Transformation helping private equity and enterprise firms achieve Quiet IT from vision to execution.” Source: company website · checked Sep 4, 2026
5	Access ONE INCIndirect evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	138
	“Access One is a business technology services and communications provider, dedicated to world-class technologies and an award-winning client experience.” Source: company website · checked Sep 4, 2026
6	Alam, An Accentedge CompanyPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	201-500	128
	“Alam & Company LLC, a Microsoft Certified Partner Consulting company, provides information technology, project management, six sigma, and outsourcing services to public and…” Source: company website · checked Sep 4, 2026
7	Clarity PartnersPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	121
	“Clarity Partners is a privately held full-service management and technology consulting firm.” Source: company website · checked Sep 4, 2026
8	Cuesta PartnersIndirect evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	118
	“We believe in the power of technology to create sustained, differentiated advantage.” Source: company website · checked Sep 4, 2026
9	Kenway ConsultingPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	105
	“Kenway Consulting is a management and technology consulting firm whose entire reason for existence is to help companies and its employees.” Source: company website · checked Sep 4, 2026
10	Comtek InternationalIndirect evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	201-500	85
	“Comtek International, Inc.” Source: company website · checked Sep 4, 2026
11	Aberdeen Advisors LLCIndirect evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	84
	“Headquartered in Chicago, with satellite offices in India and Mexico, Aberdeen Advisors LLC is a boutique digital consultancy providing innovative products and services.” Source: company website · checked Sep 4, 2026
12	Logan ConsultingPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	83
	“Logan Consulting helps manufacturing, distribution and service companies use technology to reduce costs and increase sales resulting in higher company profits.” Source: company website · checked Sep 4, 2026
13	Performalytic CorpIndirect evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	74
	“Performalytic Corp, headquartered in Naperville, IL, is a leading implementer and thought leader of Analytics and Business Intelligence solutions for many Fortune500 companies.” Source: company website · checked Sep 4, 2026
14	DTI Diversified Technology INCStrong evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	60
	“DTI is a 100% African American-owned IT consulting and network services firm with nearly 40 years of experience.” Source: company website · checked Sep 4, 2026
15	Ultra ConsultantsPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	59
	“Ultra Consultants is an independent ERP consulting firm guiding manufacturing and distribution companies on their Digital and Business Transformations.” Source: company website · checked Sep 4, 2026
16	Liberty Advisor GroupIndirect evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	201-500	45
	“Liberty Advisor Group is now a Resultant company, uniting senior-led strategic advisory with a 300+-person technical engine to turn complex business challenges into measurable…” Source: company website · checked Sep 4, 2026
17	Mars-Technominds, INCPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	43
	“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: company website · checked Sep 4, 2026
18	Simetrica ConsultingPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	51-200	41
	“Simetrica Consulting is a computer software company based out of Ave.” Source: company website · checked Sep 4, 2026
19	Framework ITPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	11-50	40
	“Framework IT is a managed IT services provider specializing in support, strategy, and security for companies who want to form an agile IT environment.” Source: company website · checked Sep 4, 2026
20	Echelon Consulting, L.L.CPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	11-50	37
	“Echelon Consulting, LLC.” Source: company website · checked Sep 4, 2026

Showing 20 of 481 IT consulting services based in Chicago, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,968 reachable decision-makers.

Free signup · no credit card

See all 481 companies

IT consulting services based in Chicago, United States at a glance

As of Sep 4, 2026

1-10Median size (employees)

New YorkLargest hub · 976 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

259

11-50

141

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 481 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 IT consulting services, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “IT consulting services”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among IT consulting services, 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 an evidence 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, 2,968 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 4, 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.

IT consulting services by metro in the United States

Frequently asked

How many IT consulting services are there based in Chicago, United States?

RevenueBase identified 481 IT consulting services 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?

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

Which city has the most IT consulting services?

New York leads with 976 headquartered companies, followed by Houston (633) and Atlanta (521).

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 2,968 verified decision-maker contacts tracked across these 481 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 4, 2026.

Ready to reach these companies? Verified emails and direct dials for all 481 IT consulting services based in Chicago, United States. Start with a free account, no credit card.

Get the full list

Related lists

IT consulting services by geography

Browse the directory

Browse: Companies home · IT consulting services in United States · All United States lists · All IT consulting services lists · New lists

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 SmartSearch, 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.