Our Members

WSIA's membership is comprised of three groups - our employers, who operate their own self-insured workers' compensation programs; our associate members, who provide professional services to employers of both self-insurance and the state fund; and our service companies, who provide third party claims administration services to self-insured and other employers and groups. The following directory lists our members, with links to their own websites, as available.

Employer Members


Absher Construction Co.
ArcBest Corporation
Alaska Airlines
Asplund Tree Expert Company
Atkinson Construction
Avista Corp.


Boise Cascade, LLC
Borton Fruit
BP Cherry Point Refinery
BrightSpring Health Services


Catholic Initiatives/Common Spirit Health
Chelan County
Chelan County PUD #1
Cheveron Corporation
City of Bellevue
City of Bellingham
City of Kent
City of Olympia
City of Puyallup
City of Seattle
City of Spokane
City of Tacoma
City of Vancouver
City of Yakima
Clallam County
Clark County Risk Management
Clark Public Utilities
Columbia Distributing
Comcast Cable
Community Transit
Corp. of Catholic Archbishop of Seattle
Costco Wholesale Corp.
Cowlitz County



Energy Northwest
ESD # 101 - NEWA WC Cooperative
ESD #105
ESD #112
ESD #113
ESD #114
ESD #121-Puget Sound WCT
ESD #123
ESD #171/North Central
Express Services Inc.


Foster Farms
Framatome Inc.

Associate Members

Service Company Members