Custom Software Development Agencies in Chicago, Illinois

18 custom software development agencies are listed in Chicago, Illinois. 2 have been assessed on the Agency List Score as of September 2026; the highest-ranked is Intersog at 78.1.

Ranked · 2 assessed

Ordered by Agency List Score
#1 of 2 assessed
Intersog
78
Verified

Custom software and AI solutions for diverse industries

Application DevelopmentData Engineering Pipelines
#2 of 2 assessed
TurnkeyTown
73
Verified

Blockchain and NFT development with Web3 and Metaverse solutions

Application DevelopmentData Engineering PipelinesDevSecOps Enablement

Also in Chicago · 16 not yet assessed

Listed agencies queued for assessment. Alphabetical.

About this ranking

What this page ranks

This page ranks the 2 custom software development agencies in Chicago, Illinois that have been assessed on the Agency List Score, out of 18 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, Custom Software Development 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 2, so no award can be issued here.

The 16 custom software development agencies not yet assessed are listed on this page but not ranked.

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 custom software development agencies are in Chicago, Illinois?
18 are listed on Agency List in Chicago, Illinois. 2 of them have been assessed on the Agency List Score as of September 2026.
Which custom software development agency in Chicago, Illinois is ranked highest?
Intersog, with an Agency List Score of 78.1, ranks #1 of 2 assessed agencies in Custom Software Development in Chicago, Illinois.
Why are 16 custom software development agencies listed here but not ranked?
16 of the 18 listed have not yet been assessed on the Agency List Score. 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 Custom Software Development in Chicago, Illinois cohort of 2 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.