| Business | Phone |
| Avanti Aerospace Inc 706 Alpha Dr, Cleveland 44143 | (440) 602-9077 |
| Brookpark Labs Inc 4595 Manufacturing Ave, Cleveland 44135 | (216) 267-7140 |
| Weldall Industries Inc 4055 Superior Ave, Cleveland 44103 | (216) 391-9335 |
| Cleveland Instrument Corp 6397 Eastland Rd, Cleveland 44142 | (440) 826-1800 |
| Ferrotherm Co 4758 Warner Rd, Cleveland 44125 | (216) 883-9350 |
| Heroux Inc 31540 Anna Ln, Cleveland 44140 | (440) 892-8863 |
| Honeywell 8370 Dow Cir, Cleveland 44136 | (440) 243-8877 |
| J-Air Inc 24400 Highland Rd, Cleveland 44143 | (216) 692-0010 |