Washington Association of Legal Investigators
- Legal investigator association offering information about their organization, membership information, and links to other sites that may be of interest.
- http://www.wali.org/

The Pacific Northwest Association of Investigators
- An association for Private Investigators offering licensing information, press releases, and history of their organization.
- http://www.pnai.com/

Nichols & Associates
- A private investigation agency located Tacoma and Spokane.
- http://www.nicholsinvestigations.com/