Software , Customer Engagement Platforms , Auctions | 1 More - Westchester, Illinois, United States
- $4.6B
- 5K - 10K
Software , Human Resources Software , Business Services | 2 More - Chicago, Illinois, United States
- $2.3B
- 5K - 10K
Software , Human Resources Software - Schaumburg, Illinois, United States
- $1.8B
- 5K - 10K
Software , Financial Software - Chicago, Illinois, United States
- $944.8M
- 1K - 5K
Software , Financial Software , Business Services | 2 More - Chicago, Illinois, United States
- $777.5M
- 1K - 5K
Software , Networking Software - Schaumburg, Illinois, United States
- $753.1M
- 1K - 5K
Software , Financial Software , Finance | 1 More - Chicago, Illinois, United States
- $721.8M
- 1K - 5K
Software , Financial Software , Database & File Management Software - Schaumburg, Illinois, United States
- $658.8M
- 1K - 5K
Software , Financial Software , Banking | 2 More - Chicago, Illinois, United States
- $608.7M
- 201-500
Software , Healthcare Software , Business Services | 1 More - Chicago, Illinois, United States
- $588M
- 1K - 5K
Top Software companies in Illinois - September, 2026
Listed below are the top companies in Illinois by revenue as of September 2026. With $4.6B in revenue, RB Global is ranked first on the list, followed by Alight Solutions with $2.3B in revenue and Paylocity with $1.8B in revenue. Find additional information about companies in Illinois such as their contact details, employees, location, org chart, news and much more.Location
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