IT Services and Support Agencies in Chicago, Illinois

32 IT Services and Support agencies are listed in Chicago, Illinois. 28 have been assessed on the Agency List Score as of October 2026; the highest-ranked is Thoughtworks at 96.3.

Ranked · 16 of 28 assessed

Ordered by Agency List Score
#1 of 28 assessed
Thoughtworks
96

Global technology consultancy blending design, engineering, and AI expertise

Managed IT Services
#2 of 28 assessed
RKON
95

IT transformation and cybersecurity for private equity and enterprises

Backup and Disaster RecoveryHelp Desk and SupportManaged IT Services
#3 of 28 assessed
3Cloud
95

SEO and PPC services for inbound lead capture and search visibility

Managed IT Services
#4 of 28 assessed
Net Works Consulting Resources
92

Managed IT, cybersecurity, and Microsoft 365 support across Chicago and Colorado offices

Managed IT Services
#5 of 28 assessed
LME Services
74

Managed IT and Cybersecurity for Chicagoland Businesses

Backup and Disaster RecoveryManaged IT Services
#6 of 28 assessed
Sayers
73

IT consulting for cybersecurity, cloud, and infrastructure solutions

Case Studies and Whitepapers
#7 of 28 assessed
Bandwidth Simplified
73

Customized telecom and IT solutions for seamless business connectivity

Backup and Disaster RecoveryManaged IT Services
#8 of 28 assessed
Fulton May Solutions
73

Managed IT services and cybersecurity for diverse industries

Case Studies and Whitepapers
#9 of 28 assessed
Protek-IT
68

Outsourced IT support and cybersecurity for Chicago businesses

Help Desk and SupportManaged IT ServicesMicrosoft 365 Administration
#10 of 28 assessed
Html Global
68

Managed IT services, cybersecurity, and cloud solutions provider

Backup and Disaster RecoveryEndpoint and Device ManagementHelp Desk and Support
#11 of 28 assessed
Science On Call
67

24/7 tech support for restaurant operations and efficiency

Backup and Disaster RecoveryEndpoint and Device ManagementHelp Desk and Support
#12 of 28 assessed
Framework IT
67

Proactive IT management and tailored roadmaps for Chicago businesses

Backup and Disaster RecoveryHelp Desk and SupportManaged IT Services
#13 of 28 assessed
IT Staffing In United States
66

Search and PPC services for inbound lead capture and search visibility

Managed IT Services
#14 of 28 assessed
KDM Engineering
53

Power distribution and telecom design with a focus on diversity

Backup and Disaster RecoveryEndpoint and Device ManagementHelp Desk and Support
#15 of 28 assessed
Centium
53

NetSuite implementation, customization, and managed services since 2003

Managed IT Services
#16 of 28 assessed
New Peak Solutions
51

SharePoint, cloud, and custom software consulting for US and Canada clients

Backup and Disaster RecoveryEndpoint and Device ManagementHelp Desk and Support

Also in Chicago · 16 not ranked here

4 have not yet been assessed on the Agency List Score. Alphabetical.

About this ranking

What this page ranks

This page ranks 16 of the 28 assessed IT Services and Support agencies in Chicago, Illinois — the ones carrying a published score — out of 32 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, IT Services and Support in Chicago, Illinois. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 28, so the strongest award available here is top 10%.

The 4 IT Services and Support agencies not yet assessed are listed on this page but not ranked.

A further 12 were assessed and no published evidence of their work was found, so no score is shown for them.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many IT Services and Support agencies are in Chicago, Illinois?
32 are listed on Agency List in Chicago, Illinois. 28 of them have been assessed on the Agency List Score as of October 2026, and 16 of those carry a published score.
Which IT Services and Support agency in Chicago, Illinois is ranked highest?
Thoughtworks, with an Agency List Score of 96.3, ranks #1 of 28 assessed agencies in IT Services and Support in Chicago, Illinois.
Why are 16 IT Services and Support agencies listed here but not ranked?
4 of the 32 listed have not yet been assessed on the Agency List Score. A further 12 were assessed and no published evidence of their work was found, so no score is shown for them. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the IT Services and Support in Chicago, Illinois cohort of 28 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.