Illinois · 15 cities
Custom AI tools for Illinois businesses.
Custom websites, AI tools and back-office systems for Illinois businesses — from freight, manufacturing and trade firms across Chicagoland to healthcare practices, contractors and professional offices downstate.
Illinois has 321,239 business establishments with employees across 102 counties (US Census Bureau, County Business Patterns 2023) and an estimated population of 12,710,158 (2024). 187 Illinois cities have 350+ establishments; we're publishing local pages for them in batches, starting with the 15 below.
See my free plan →Northwest Suburbs
- Schaumburg, ILCook County4,342 establishments · pop. 77,099Top sector: Professional, scientific & technical services
- Arlington Heights, ILCook County3,049 establishments · pop. 75,596Top sector: Professional, scientific & technical services
- Des Plaines, ILCook County3,020 establishments · pop. 58,832Top sector: Professional, scientific & technical services
- Elk Grove Village, ILCook County2,435 establishments · pop. 31,802Top sector: Professional, scientific & technical services
Illinois FAQ
Where do the business numbers on these pages come from?
From public US Census Bureau datasets: ZIP Code and County Business Patterns (2023) for establishment counts and sectors, and Vintage 2024 population estimates. Each page links the sources.
My town isn't listed. Can you still work with me?
Yes. We work with businesses anywhere in Illinois and across the US; these pages simply cover the cities with the most businesses first.
Data sources: US Census Bureau, ZIP Code Business Patterns (2023); US Census Bureau, County Business Patterns (2023); US Census Bureau, City and Town Population Estimates (Vintage 2024) (2024); US Census Bureau, Gazetteer Files (places) (2024).