| Business | Phone |
| Biosystems 561 Nw Jackson Ave, Corvallis 97330 | (541) 758-0947 |
| Biotech Research & Consulting 2340 Se Ryan St, Corvallis 97333 | (541) 752-8259 |
| E & S Environmental Chemistry 2161 Nw Fillmore Ave, Corvallis 97330 | (541) 758-5777 |
| Earth Design Consultants Inc 230 Sw 3rd St # 212, Corvallis 97333 | (541) 757-7896 |
| Ecological Planning & Toxiclgy 5010 Sw Hout St, Corvallis 97333 | (541) 752-3707 |
| Greenbelt Land Trust Inc 730 Sw 4th St, Corvallis 97333 | (541) 752-9609 |
| Hardin-Davis Inc 460 Sw Madison Ave # 7, Corvallis 97333 | (541) 758-1758 |
| Measure Tek 260 Sw Madison Ave # 114, Corvallis 97333 | (541) 757-8564 |
| Pacific Wildlife Research 37112 Moss Rock Dr, Corvallis 97330 | (541) 745-5025 |
| Wastewater Solutions 3514 Nw Mckinley Dr, Corvallis 97330 | (541) 738-1300 |