| Business | Phone |
| Akron Control Electronics 2708 Mogadore Rd, Akron 44312 | (330) 733-3700 |
| E M Controls Inc 2181 Killian Rd, Akron 44312 | (330) 475-1849 |
| Morrow Control & Supply Inc 1055 Grant St, Akron 44311 | (330) 773-6141 |
| Pro-Tech Engineering 123 E Waterloo Rd, Akron 44319 | (330) 773-9828 |
| Ross Controls Inc 1972 N Cleveland Massillon Rd, Akron 44333 | (330) 666-6654 |
| Taylor Instrument Co 350 Derbyshire Rd, Akron 44319 | (440) 526-9666 |