(click on agency name for registration information)
| Company Name |
Location |
| A. A. R. Testing Laboratory, Inc. |
Redmond, Washington |
| ACS Testing, Inc |
Tigard, Oregon |
| Allwest Testing |
Spokane, Washington |
| Budinger & Associates |
Spokane, Washington |
| Carlson Testing, Inc. |
Tigard, Oregon |
| Cascade Testing Laboratory, Inc. |
Everett, Washington |
| Cascade Testing Laboratory, Inc. |
Kirkland, Washington |
| Columbia West Engineering, Inc. |
Vancouver, Washington |
| Construction Testing Laboratories, Inc. |
Tacoma, Washington |
| Geo Engineers, Inc. |
Spokane, Washington |
| GeoTest Services, Inc |
Bellingham, Washington |
| GeoTest Services, Inc. |
Arlington, Washington |
| Hayre McElroy & Assoc. |
Redmond, Washington |
| King County DOT Road Services Division |
Renton, Washington |
| Kleinfelder |
Redmond, Washington |
| Krazan and Associates |
Bothell, Washington |
| Krazan and Associates |
Poulsbo, Washington |
| Krazan and Associates |
Puyallup, Washington |
| Materials Testing & Consulting |
Bellingham, Washington |
| Materials Testing & Consulting |
Burlington, Washington |
| Materials Testing & Consulting |
Olympia, Washington |
| Materials Testing and Inspection |
Boise, Idaho |
| Mayes Testing Engineers, Inc. |
Lynnwood, Washington |
| Mayes Testing Engineers, Inc. |
Portland, Oregon |
| Mayes Testing Engineers, Inc. |
Tacoma, Washington |
| Northwest Geotech, Inc. |
Wilsonville, Oregon |
| Otto Rosenau & Associates, Inc. |
Seattle, Washington |
| Pacific Testing & Inspection |
Centralia, Washington |
| Professional Services Industries, Inc. |
Mountlake Terrace, Washington |
| Professional Services Industries, Inc. |
Portland, Oregon |
| Professional Services Industries, Inc. |
Tacoma, Washington |
| STRATA |
Spokane, Washington |
| Terracon |
Redmond, Washington |
** Denotes Agency Registration is NOT current.
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