| Business | Phone |
| C C Jensen 1557 Nw Ballard Way, Seattle 98107 | (206) 789-1710 |
| Covich & Williams Co Inc 5219 Shilshole Ave Nw, Seattle 98107 | (206) 784-0171 |
| D R Shannon Co 23407 Pacific Hwy S, Seattle 98198 | (206) 824-3308 |
| High Purity Northwest 5100 Shilshole Ave Nw, Seattle 98107 | (206) 782-2388 |
| Gar-Ber Filters Inc 4013 Leary Way Nw, Seattle 98107 | (206) 789-2758 |