| Business | Phone |
| Akron Rubber Development Lab 2887 Gilchrist Rd, Akron 44305 | (330) 794-6600 |
| American Analytical Labs Inc 840 S Main St, Akron 44311 | (330) 535-1300 |
| Lab 2000 847 Damon St, Akron 44310 | (330) 761-0775 |
| Polymer Development Group 2887 Gilchrist Rd, Akron 44305 | (330) 794-6616 |
| Suburban Medical Labs 670 Jarvis Rd, Akron 44319 | (330) 645-2019 |
| Summit Environmental Tech 595 E Tallmadge Ave, Akron 44310 | (330) 253-8211 |