| Business | Phone |
| Smith & Monroe & Gray Engrs 10700 Beaverton Hillsdale #210, Beaverton 97005 | (503) 643-8595 |
| S R Design 8196 Sw Hall Blvd # 232, Beaverton 97008 | (503) 469-1213 |
| Pacific Water Resources 4905 Sw Griffith Dr # 200, Beaverton 97005 | (503) 671-9709 |
| Kurahashi & Assoc 15580 Sw Jay St # 200, Beaverton 97006 | (503) 644-6842 |