| Business | Phone |
| James Injection Molding Co 300 Pfingsten Rd, Northbrook 60062 | (847) 564-3820 |
| Rogan Corp 3455 Woodhead Dr, Northbrook 60062 | (847) 498-2300 |
| Techny Plastics Corp 1919 Techny Rd, Northbrook 60062 | (847) 498-2212 |
| G Y Packaging 3215 Commercial Ave, Northbrook 60062 | (847) 272-8803 |
| Malcolite Corp 1918 Raymond Dr, Northbrook 60062 | (847) 562-1350 |