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IT & computer services in Oak Brook, IL

49 it & computer services listed in Oak Brook, Illinois. 48 with a phone number and 46 with a website.

Oak Brook accounts for 1.5% of the it & computer services listed in Illinois.

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Quick answer

Oak Brook, IL has 49 it & computer services listed on USA Business Search. 48 list a phone number and 46 list a website. The most listings are in ZIP codes 60523.

Updated October 2026
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How to choose an IT company in Oak Brook

  • Ask who will actually do the work and how often you'll hear from them.
  • Get the scope, price and timeline in writing.
  • Ask for two references from clients like you.

Check the business: confirm a company's registration with the state in our Illinois business lookup guide, and licensed trades in the contractor license lookup guide.

Common questions

How many it & computer services are listed in Oak Brook, Illinois?

USA Business Search shows 49 it & computer services in Oak Brook. 48 list a phone number and 46 list a website.

Which ZIP codes do these listings cover?

They include ZIP codes 60523.

How do I choose an IT company in Oak Brook?

Ask who will actually do the work and how often you'll hear from them. Get the scope, price and timeline in writing. Ask for two references from clients like you. Check the license or registration through the Illinois business lookup guide.

How do I add or fix a listing?

Listings are free. Use Add your business, or the Claim or fix link on any listing.

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