| SLScalabridge LLC | Chicago | IL | Computer and Electronic Product Manufacturing334416 | — | ◐ LIKELY ACTIVE |
S&C Electric Company Chicago | Chicago | IL | Electrical Equipment, Appliance & Component Manufacturing335313 | 500+ | ◐ LIKELY ACTIVE |
| SCSeafrigo Coldstorage Chicago Inc. | Chicago | IL | — | — | ◐ LIKELY ACTIVE |
| SCSecond City Meadery, INC. | Chicago | IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| SCSelect Cut Meat Processing | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| SBSky Blue Enterprises LLC. | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| SFSneaky Fox Spirits | Chicago | IL | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| SOSp One Global Group INC | Chicago | IL | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| SCSRAM - Chicago HQ | Chicago | IL | Transportation Equipment Manufacturing336991 | 100-499 | ◐ LIKELY ACTIVE |
| STStandfast Tram LLC | Chicago | IL | Transportation Equipment Manufacturing336390 | — | ◐ LIKELY ACTIVE |
| SCSt. Croix Meats, LLC | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| SWSteel Warehouse of Illinois | Chicago | IL | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| SPSullivan Provisions | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| SFSynergy Flavors Innova LLC (Site 2) | Chicago | IL | Food Manufacturing311942 | 20-99 | ◐ LIKELY ACTIVE |
| SFSynergy Flavors lnnova, LLC | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| TCTadesha C Brantley | Chicago | IL | Food Manufacturing311999 | — | ◐ LIKELY ACTIVE |
| TFTaylor Farms Illinois, Inc | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| TFTec Foods Inc. | Chicago | IL | Food Manufacturing311941 | 20-99 | ◐ LIKELY ACTIVE |
| TAThe Advance Equipment Manufacturing Co. | Chicago | IL | Fabricated Metal Product Manufacturing332216 | 20-99 | ◐ LIKELY ACTIVE |
| THThe Hallstar Company | Chicago | IL | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
The Home City Ice Company Chicago | Chicago | IL | Beverage and Tobacco Product Manufacturing312113 | 1-19 | ◐ LIKELY ACTIVE |
| TPTriangle Package Machinery Company | Chicago | IL | Machinery Manufacturing333993 | 100-499 | ◐ LIKELY ACTIVE |
| UIUSA IL Chicago Plant | Chicago | IL | Chemical Manufacturing325510 | 100-499 | ◐ LIKELY ACTIVE |
| USUS Security Link Corporation | Chicago | IL | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| VHVan Hessen USA, Inc. | Chicago | IL | — | — | ◐ LIKELY ACTIVE |
| VMVariety Meat Company | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| VPVf2 Power CO | Chicago | IL | Machinery Manufacturing333514 | — | ◐ LIKELY ACTIVE |
| VBVienna Beef Ltd. | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| VVin312 | Chicago | IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| VSV&V Supremo Foods | Chicago | IL | Food Manufacturing311513 | 20-99 | ◐ LIKELY ACTIVE |
| VSV&V Supremo Foods | Chicago | IL | Food Manufacturing311513 | 100-499 | ◐ LIKELY ACTIVE |
| WSWabash Seafood | Chicago | IL | Food Manufacturing311612 | 20-99 | ◐ LIKELY ACTIVE |
| WTWhiskey Trust LLC | Chicago | IL | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| WCWhitesell Corporation Chicago | Chicago | IL | Machinery Manufacturing333921 | 1-19 | ◐ LIKELY ACTIVE |
| WPWichita Packing Company | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| WBWild Blossom | Chicago | IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| WBWild Blossom Meadery & Winery | Chicago | IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| WHWilliam Huber Cabinet Works, Inc. | Chicago | IL | Furniture and Related Product Manufacturing337215 | 20-99 | ◐ LIKELY ACTIVE |
| WPWilmot Productions | Chicago | IL | — | — | ◐ LIKELY ACTIVE |
| WCWindy City Winery | Chicago | IL | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| WSWinston's Sausage | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| WPWolf Point Distilling | Chicago | IL | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| W3Woodridge 31 Copacking Company LLC | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| WSWorthington Steel Company Chicago | Chicago | IL | Fabricated Metal Product Manufacturing332119 | 100-499 | ◐ LIKELY ACTIVE |
| WGWR Grace & Co - Chicago 71st | Chicago | IL | Chemical Manufacturing325180 | 100-499 | ◐ LIKELY ACTIVE |
| WRW. R. Pabich Mfg. Co., INC | Chicago | IL | Machinery Manufacturing333993 | — | ◐ LIKELY ACTIVE |
| WWtp | Chicago | IL | Food Manufacturing311340 | 1-19 | ◐ LIKELY ACTIVE |
| WEW.W. Engineering | Chicago | IL | Fabricated Metal Product Manufacturing332420 | 20-99 | ◐ LIKELY ACTIVE |
| XPXeris Pharmaceuticals, INC. | Chicago | IL | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| YYYo's Yummy's Catering/restaurant LLC | Chicago | IL | Food Manufacturing311991 | — | ◐ LIKELY ACTIVE |