| Name (Official Name - Ticker Symbol) | Location | Last Update |
| Al's Automotive Supply (Al's Automotive Supply Inc.) |
1217 Camp Jackson Rd, Cahokia, Illinois, USA 62206 | 2025-01-07 |
| AlumAseal (AlumAseal) |
4400 S Kildare Ave, Chicago, Illinois, USA 60632 | 2025-04-07 |
| Amoco (Amoco) (Defunct) |
(Was) 200 East Randolph Street, Chicago, Illinois, USA 60601 | 2025-01-11 |
| Bachelle (Bachelle Automobile Company) (Defunct) |
(Was) Chicago, Illinois, USA | 2025-02-22 |
| Bando (Bando USA, Inc.) |
1149 West Bryn Mawr, Itasca, Illinois, USA 60143 | 2025-06-23 |
| Champion Laboratories (Champion Laboratories, Inc.) |
200 S 4th St, Albion, Illinois, USA 62806 | 2024-08-23 |
| Cim-Tek (Cim-Tek Filtration) |
201 N Champaign St, Bement, Illinois, USA 61813 | 2025-04-03 |
| Diamond-Star Motors (Mitsubishi Motors North America, Inc. Manufacturing Division) (Defunct) |
(Was) 100 N. Mitsubishi Motorway, Normal, Illinois, USA 61761 | 2025-04-03 |
| Duro Metal Products (Duro Metal Products Co.) (Defunct) |
(Was) 2649 North Kildare Avenue, Chicago, Illinois, USA 60639 | 2026-03-17 |
| E-Z Mix (E-Z Mix) |
8600 South Commercial Avenue, Chicago, Illinois, USA 60617 | 2025-04-23 |
| Edelmann (Plews & Edelmann) |
1550 Franklin Grove Rd, Dixon, Illinois, USA 61021 | 2025-05-01 |
| Illinois Tool Works (Illinois Tool Works Inc. - NYSE: ITW) |
155 Harlem Avenue, Glenview, Illinois, USA 60025 | 2023-12-16 |
| Indestro (Indestro Manufacturing Co.) (Defunct) |
(Was) 2649 North Kildare Avenue, Chicago, Illinois, USA 60639 | 2026-03-17 |
| Klein Tools (Klein Tools, Inc.) |
450 Bond Street, Lincolnshire, Illinois, USA 60069 | 2026-03-16 |
| Loop Automotive (Loop Automotive LLC) |
435 N Lewis Ave, Oglesby, Illinois, USA 61348 | 2024-10-11 |
| Luber-finer (Luber-finer) |
200 South 4th Street, Albion, Illinois, USA 62806 | 2026-03-11 |
| Mid-West Fastener Association (Mid-West Fastener Association) |
Park Ridge, Illinois, USA 60068 | 2026-03-11 |
| Milton (Milton Industries, INC) |
4500 West Cortland St, Chicago, Illinois, USA 60639 | 2024-08-23 |
| Penray (The Penray Companies, Inc.) |
2651 Warrenville Road, Suite 300, Downers Grove, Illinois, USA 60515 | 2024-10-15 |
| PLZ Corp. (PLZ Corp.) |
2651 Warrenville Road, Suite 300, Downers Grove, Illinois, USA 60515 | 2024-10-15 |
| Prestone (Prestone Products Corporation) |
6250 North River Road, Suite 6000, Rosemont, Illinois, USA 60018 | 2025-06-24 |
| SP Plus (SP Plus Corporation - NASDAQ: SP) |
Aon Center, 200 E Randolph St #7700, Chicago, Illinois, USA 60601 | 2026-03-17 |
| Stupid Tech (Stupid Car Tray) |
Wauconda, Illinois, USA 60084 | 2026-03-11 |
| SVI International (SVI International, Inc.) |
155 Harvestore Dr, DeKalb, Illinois, USA 60115 | 2025-04-06 |
| Vaco (Vaco) (Defunct) |
(Was) 450 Bond Street, Lincolnshire, Illinois, USA 60069 | 2026-03-17 |
| Vaco Tools (Vaco Products Company) (Defunct) |
(Was) Chicago, Illinois, USA | 2026-03-17 |