| Business | Phone |
| Alpha Audio Assoc Inc 27599 Harvard Rd, Cleveland 44122 | (216) 292-4811 |
| Erie Street Theatrical Svc 3615 Superior Ave E # 44, Cleveland 44114 | (216) 426-0050 |
| Sideline Design 1588 E 40th St, Cleveland 44103 | (216) 391-7000 |
| Production Group 21515 Chagrin Blvd, Cleveland 44122 | (216) 561-3600 |
| Perovsek Engineering 221 E 242nd St, Cleveland 44123 | (216) 289-4748 |