Allstate Insurance Company
American Medical Response
American Steamship Owners Mutual
APL, Ltd.
Brown & Brown
Carnival Corporation
CNA
Eagle Marine Services, Ltd.
Educational Service District #112
Evergreen Trails, Inc. d/b/a Gray Line of Seattle
First State Insurance Company
Fraser's Boiler Service, Inc.
Great American Insurance Company
Greyhound Lines
The Hartford Insurance Group
Highlands Insurance Company
Hoffman Construction Company
Holland America Line, Inc.
Horizon Management Group
Industrial Indemnity
INSCO, Ltd. 
International Marine Underwriters
Liberty International Underwriters

Matrix Service Company
Matson Navigation Company
Mayflower Contract Services, Inc.
National General Insurance Company
National Home Insurance Company
New England Reinsurance Corporation
Ohio Casualty General
Old Republic Insurance Company
Parkshore Marina Association
PCL Construction
Philadelphia Insurance Company
Physicians Insurance
Response Insurance
Risk Enterprise Management
River Stone Claims Management
Royal & SunAlliance
St. Paul Fire & Marine Insurance Co.
State Farm Insurance Companies
Target Corporation
Travelers Property Casualty
Unigard Insurance Company
University of Washington
Workhorse Custom Chassis
Zurich North America