| Chicago Blower Corporation IL | Manufacturing | 0 | - | F |
| Chicago Botanic Garden IL | - | 0 | - | - |
| Chicago Bridge & Iron Company (Delaware) TX | Professional & Technical Services | 1 | $156,083 | - |
| Chicago City Soccer Club IL | Arts & Entertainment | 1 | - | - |
| Chicago Department of Aviation IL | Transportation & Warehousing | 0 | - | C |
| Chicago Dryer Company IL | Manufacturing | 0 | - | F |
| Chicago Faucets WI | Manufacturing | 0 | - | F |
| Chicago Grill on the Alley IL | - | 0 | - | - |
| Chicago Heights Steel IL | Manufacturing | 0 | - | F |
| Chicago Hope Academy IL | Other Services | 1 | - | - |
| Chicago Hotel Services, LLC IL | - | 0 | - | - |
| Chicago Landscape NV | Administrative & Waste Services | 0 | - | F |
| Chicago Meat Authority IL | Manufacturing | 0 | - | F |
| Chicago Mercantile Exchange Inc. IL | Finance & Insurance | 18 | $134,682 | - |
| Chicago Painting Inc. NV | Construction | 0 | - | F |
| Chicago Public Media, Inc. IL | Information & Media | 1 | $65,879 | - |
| Chicago Public Schools IL | Educational Services | 22 | $252,907 | C |
| Chicago Renaissance O'Hare IL | - | 0 | - | - |
| Chicago Rivet & Machine Co IA | - | 0 | - | - |
| Chicago State University IL | Educational Services | 3 | $88,778 | - |
| Chicago Steel Group, Inc. IN | Construction | 0 | - | F |
| Chicago Transit Authority IL | Transportation & Warehousing | 2 | $145,000 | F |
| Chicago Transit Authority 103RD ST SCHEDULED TRANSIT OPERATIONS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority 74TH WOOD SCHEDULED TRANSIT OPERATIONS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority 77TH STREET SCHEDULED OPERATIONS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority BLUE LINE SCHEDULED TRANSIT OPERATIONS IL | Transportation & Warehousing | 0 | - | D |
| Chicago Transit Authority BROWN LINE SCHEDULED TRANSIT OPERATIONS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority BUS SERVICE MANAGEMENT IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority CHICAGO SCHEDULED TRANSIT OPERATIONS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority FOREST GLEN SCHEDULED TRANSIT OPERATIONS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority IRONWORKERS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority KEDZIE SCHEDULED TRANSIT OPERATIONS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority LAKE HARLEM SCHEDULED TRANSIT OPERATIONS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority NORTH PARK SCHEDULED OPERATIONS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority POWER MAINTENANCE IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority RAIL STATION MGT SUPPORT ELEVATED IL | Transportation & Warehousing | 0 | - | D |
| Chicago Transit Authority RAIL STATION MGT SUPPORT RYP IL | Transportation & Warehousing | 0 | - | D |
| Chicago Transit Authority RED LINE N SCHEDULED TRANSIT OPERATIONS IL | Transportation & Warehousing | 0 | - | F |
| Chicago Transit Authority TRACK MAINTENANCE IL | Transportation & Warehousing | 0 | - | F |
| Chicago Tribune - Production Facility IL | - | 0 | - | - |
| Chicago White Metal Casting INC IL | Manufacturing | 0 | - | F |
| Chicago White Sox, LTD. IL | Arts & Entertainment | 2 | $75,250 | B |
| Chicago Yatch Club IL | - | 0 | - | - |
| Chicago's Taste Authority MN | - | 0 | - | - |
| Chicagoland Chamber of Commerce IL | Other Services | 1 | $49,800 | - |
| Chicagoland Infectious Disease, PC IL | Healthcare & Social Assistance | 1 | $90,000 | - |
| Chick Master Incubator Company OH | - | 0 | - | - |
| Chick-fil-A CA | - | 0 | - | - |
| Chick-fil-A MD | - | 0 | - | - |
| Chick-fil-A PA | - | 0 | - | - |
