Kysar & Koistinen Inc. has worked with and or partnered with the following Agencies and Companies:
- ADK Electric
- Ballard Marine
- Cascade Columbia Fish Enhancement Group
- Chehalis Basin Fisheries Task Force
- Cat Works LLC
- Clark County Conservation District
- Cascade Bridge
- Clark Public
Utilities
- Cowlitz County
- Cowlitz County Conservation District
- Cowlitz Indian Tribe
- Fish
First
- Forma Construction
- Granite
Construction
- Grays Harbor College
- Grays Harbor Conservation District
- Grays Harbor County
- Halme
Construction
- Halme Forstery Inc
- Icon Construction
-
Interfluve
- Heernet Foundation
- Lower Columbia Fish Enhancement Group
- Northwest Cascade Inc
- Pacific Coast Salmon Coalition
- Rayonier Forest
Products
- Rotschy Inc
- South Puget Sound Salmon Enhancement Group
- Tapani Underground
- Thurston Conservation
District
- Transalta Mining Company
- Underwood Conservation
District
- US Army Corp of Engineers
- Wahkiakum Conservation
District
- WDFW
- Willipa Bay Regional Fisheries Enhancement
Group
- Yakama Nation Fisheries