| Business | Phone |
| Adl Technology 2727 Scioto Pkwy, Columbus 43221 | (614) 279-7759 |
| Srico Inc 2724 Sawbury Blvd, Columbus 43235 | (614) 799-0664 |
| Rjs Electronics Inc 1752 Willoway Cir S, Columbus 43220 | (614) 451-5646 |
| Computer Allied Technology Co 3385 Somerford Rd, Columbus 43221 | (614) 457-2292 |
| Lubell Laboratories Inc 21 N Stanwood Rd, Columbus 43209 | (614) 235-6740 |
| Lem Usa 999 Pennsylvania Ave, Columbus 43201 | (614) 298-8434 |