| Business | Phone |
| Geologist Examiners 707 13th St Se # 275, Salem 97301 | (503) 362-2666 |
| Geologist Examiners 726 Hawthorne Ave Ne, Salem 97301 | (503) 362-2666 |
| Oregon State Board-Geologist 1193 Royvonne Ave Se, Salem 97302 | (503) 566-2837 |
| Rehm Geological Consulting 5088 Summerfield Dr Se, Salem 97306 | (503) 999-9228 |