| Business | Phone |
| Uroboros Glass Studios Inc 2139 N Kerby Ave, Portland 97227 | (503) 284-4900 |
| Bullseye Glass Co 3722 Se 21st Ave, Portland 97202 | (503) 232-8887 |
| Owens-Illinois Glass Container 9710 Ne Glass Plant Rd, Portland 97220 | (503) 254-7331 |
| Glass Alchemy Ltd 6539 Ne 59th Pl, Portland 97218 | (503) 460-0545 |