Licensed Contractors in Illinois
Illinois licenses roofing contractors at the state level (IDFPR, about 16,600 active). General contractors, electricians, plumbers, and masons are licensed by individual cities — Chicago alone publishes about 10,500 active licenses with phone numbers included. Other trades (HVAC, solar, fire protection, sub-trades) are regulated municipally with no statewide roster.
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The contractor market in Illinois
Illinois has 15,797 active licensed contractors serving 12,757,583 residents. County building departments pulled 18,551 permits in 2025, the work pipeline those contractors compete for.
Illinois has 12.4 licensed contractors per 10,000 residents.
That works out to 2.9 contractors for every 1,000 households.
Cities with the most licensed contractors in Illinois
| Rank | City | Licensed contractors |
|---|---|---|
| 1 | Chicago | 4,388 |
| 2 | Des Plaines | 196 |
| 3 | Schaumburg | 170 |
| 4 | Skokie | 170 |
| 5 | Elgin | 162 |
| 6 | Arlington Heights | 154 |
| 7 | Park Ridge | 151 |
| 8 | Elk Grove Village | 147 |
| 9 | Glenview | 145 |
| 10 | Northbrook | 142 |
Ranked by mapped active licenses. Cities only. The full roster covers every Illinois ZIP.
General Contractors are the largest licensed trade in Illinois, with 6,715 active licenses. Every other covered trade is shown with its own count in the map above.
Common questions about Illinois contractors
How many licensed general contractors are in Illinois?
6,715 active licensed general contractors are registered in Illinois, verified against the IDFPR + Chicago Department of Buildings. ContractorRoster delivers every one with phone, email, and website.
How do I verify a Illinois contractor license?
Check any license number directly with the IDFPR + Chicago Department of Buildings at https://online-dfpr.micropact.com/Lookup/LicenseLookup.aspx. Every record we deliver carries its active license number so you can confirm it at the source.
What does a Illinois contractor list cost, and how current is the data?
Lists start at $19, delivered as a CSV within 3 minutes. The Illinois data was last refreshed 2026-07-07, sourced direct from the IDFPR + Chicago Department of Buildings and enriched with contact info for most records.
Which contractor trades does Illinois cover?
Illinois covers 5 trades: electricians, plumbers, general contractors, roofing contractors, masons. Search any one by city or ZIP.
Which Illinois cities have the most licensed contractors?
Chicago, Des Plaines, Schaumburg lead Illinois by licensed-contractor count. ContractorRoster covers every city and ZIP in the state, not just the major metros.
Are the Illinois contractors in this list currently active?
Yes, every record is an active license; expired and lapsed licenses are filtered out. The Illinois data was last refreshed 2026-07-07 from the IDFPR + Chicago Department of Buildings.
Data source
Direct from the IDFPR + Chicago Department of Buildings
Every record we deliver in Illinoiscomes from the state's official license registry, refreshed regularly. We enrich each row with phone, email, website, and Google ratings sourced from public business listings. Contact info present for most records.
Visit IDFPR + Chicago Department of Buildings →What you get
- • Active license number + classification
- • Business name + license holder name
- • Phone, email, website (most records)
- • Google rating + review count where available
- • Full mailing address + ZIP
- • Issue date + expiration date
- • CSV delivered to your inbox in under 3 minutes