| Business | Phone |
| A-L-M Inc 1058 S Vandeventer Ave, St Louis 63110 | (314) 531-1530 |
| American Industrial 645 Leffingwell Ave, St Louis 63122 | (636) 343-0110 |
| Labarge Products 3445 Bent Ave, St Louis 63116 | (314) 776-2900 |
| Dayco Products Inc 5714 S Lindbergh Blvd # 9, St Louis 63123 | (314) 843-7711 |
| Diansuply Inc 4505 Green Park Rd, St Louis 63123 | (314) 892-8597 |