Contact us: Private investigators

Private investigator agencies

  • Phone: 800.451.7985
  • Fax: 360.705.6699
  • Email: BLS@dor.wa.gov
  • Mailing address:
    State of Washington
    Business Licensing Service
    PO Box 9034
    Olympia, WA 98507-9034
  • Physical location:
    Business Licensing Service
    6500 Linderson Way SW
    Tumwater, WA 98501
    Driving directions

Armed private investigators, unarmed private investigators, and certified trainers

  • Phone: 360.664.6611
  • Fax: 360.570.7888
  • Email: security@dol.wa.gov
  • Mail forms with payments to:
    Private Investigator Program
    Department of Licensing
    PO Box 35001
    Seattle, WA 98124-3401
  • Mail correspondence with no payments to:
    Private Investigators
    Department of Licensing
    PO Box 9649
    Olympia, WA 98507-9649
  • Physical location
    Department of Licensing
    405 Black Lake Blvd SW
    Olympia, WA 98502
    Driving directions

Office hours

Monday through Friday
8:30 a.m. to 4:30 p.m.

HOLIDAY CLOSURES
Holiday Office closed…
Presidents’ Day Monday, February 17, 2014
Memorial Day Monday, May 26, 2014
Independence Day Friday, July 4, 2014
Labor Day Monday, September 1, 2014
Veterans Day Tuesday, November 11, 2014
Thanksgiving Thursday and Friday, November 27–28, 2014
Christmas Thursday, December 25, 2014
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