Top Companies in Illinois
Largest Illinois business entities by revenue. Filter by employee size or sort by different criteria.
| Company Name | Country | City | Address 1 | Phone | State/Province | Postal Code | Website | Founding Year | Yearly Revenue in U.S. Dollars | Employees Total | Business Legal Type - Description | Number of Companies in Group | Company Registration Number | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Federal Home Loan Bank Of Chicago | *****@***.*** | USA | Chicago | 433 W van Buren St Ste 501s | +** ******** | Cook | 60607 | fhlbc.***** | 1932 | $7,014,000,000 | 469 | N/A | N/A | 366001019 |
| 2 | Central States Southeast & Southwest Areas Health & Welfare Fund | ******@****.*** | USA | Des Plaines | 9377 W Higgins Rd Fl 2 | +** ********* | Cook | 60018 | centralstatesfunds.***** | 1950 | $5,014,226,146 | 719 | N/A | N/A | N/A |
| 3 | Northwestern University Human Resources | *******@*****.*** | USA | Evanston | 720 University Pl | +** ******** | Cook | 60208 | northwestern.***** | 2002 | $3,319,115,351 | 4 | N/A | N/A | N/A |
| 4 | Franciscan Alliance, INC. | ********@******.*** | USA | Chicago Heights | 100 197th Pl | +** ********* | Cook | 60411 | franciscanhealthfitnesscenters.***** | 2001 | $3,309,888,000 | 20 | N/A | N/A | N/A |
| 5 | H Group Benefits, INC. | *********@*******.*** | USA | Northbrook | 610 Anthony Trl | +** ******** | Adams | 60062 | relationinsurance.***** | 2008 | $1,900,000,000 | 751 | N/A | N/A | 65887843 |
| 6 | Sobaz INC | **********@********.*** | USA | Chicago | 444 W Lake St | +** ********* | Cook | 60606 | N/A | 1992 | $1,697,642,858 | 117 | N/A | N/A | 10166548 |
| 7 | Chicago Community Trust | ***********@***.*** | USA | Chicago | 33 S State St Ste 700 | +** ******** | Cook | 60603 | chicagoforrahm.***** | 1915 | $1,536,635,743 | 100 | N/A | N/A | 362167000 |
| 8 | Professional Concert Office | ************@****.*** | USA | Chicago | 50720 S Woodland Ave | +** ********* | Cook | 60637 | uchicago.***** | 1902 | $1,378,360,000 | 3 | N/A | N/A | N/A |
| 9 | Ralcorp Frozen Bakery Products, INC. | *****@*****.*** | USA | Downers Grove | 2021 Spring Rd Ste 600 | +** ******** | Dupage | 60515 | N/A | 2013 | $1,359,729,730 | 3,000 | N/A | N/A | 2982919 |
| 10 | North Advocate Side Health Network | ******@******.*** | USA | Chicago | 836 W Wellington Ave | +** ********* | Cook | 60657 | advocatehealth.***** | 1981 | $1,232,827,665 | 1,600 | N/A | N/A | 52371155 |
Illinois-Companies.csv
Illinois Business Entity Search
Looking up a Illinois business entity? Our database lets you search by company name or registration number and get instant results — including the company's registered address, entity type (LLC, Corporation, etc.), founding year, industry classification, and employee count.
This is a faster alternative to the Illinois Secretary of State's official filing database, with additional data fields like revenue estimates and corporate hierarchy that state registries don't provide. Results cover both active and inactive entities.
What you can look up
- Registered business address
- Entity type (LLC, Corp, LP, etc.)
- Registration / filing number
- Founding year & status
- Industry classification (SIC/NAICS)
Additional data available
- Employee count & revenue estimates
- Corporate hierarchy & parent company
- Email & phone (with data license)
- Website & trade names
- Bulk export to CSV
Related searches
illinois business searchillinois business entity searchillinois company searchillinois llc searchillinois business name search