Blue = new in 2009
- Alaska Airlines
- Association of Washington Public Hospital Districts
- Atlantic Tele-Network, Inc.
- Bashas'
- Battelle
- BECU
- Beeline
- Bertram Capital
- Bonneville Power Administration
- Chicago Public Schools
- CIGNA
- Cisco Systems, Inc.
- City of Portland
- Code 3, Inc.
- Columbia Capital
- Compassion International
- Con-way, Inc.
- Craig Hospital
- Delta Dental
- Dendreon
- Denver Public Schools
- Denver Water
- Evergreen Healthcare
- Exempla Healthcare
- Expedia
- Federal Home Loan Bank of Seattle
- First Data
- Franciscan Health System
- Fred Hutchinson Cancer Research Center
- Fred Meyer
- Future of Flight Aviation Center
- GCI
- Group Health Cooperative
- Harris Teeter, Inc.
- Healthentic
- Infocrossing, A Wipro Company
- ISCS, Inc.
- John C. Lincoln Health Network
- Kaiser Permanente
- King County
- KPS Health Plans
- Les Schwab Tire Centers
- LifeLock, Inc.
- MacDonald-Miller Facility Solutions, Inc.
- MeteorComm
- Metro Wastewater Reclamation District
- Michigan State University
- Microsoft
- Mud Bay
- MultiCare Health System
- Namescape Corporation
- Northwest Hospital and Medical Center
- NW Natural
- Nyhus Communications
- ON Semiconductor
- Orbitz Worldwide
- Overlake Hospital Medical Center
- Pacific Medical Centers
- PetSmart
- PetSmart Charities
- Point Inside
- Portland Public Schools
- Premera Blue Cross
- Providence Health & Services
- Puget Sound Blood Center
- Puget Sound Energy
- Regence Group
- Salt River Pima-Maricopa Indian Community
- Salt River Project
- Scottsdale Insurance Company
- Seattle Cancer Care Alliance
- Seattle Children's
- Seattle Public Schools
- skinnyCorp
- Sound Transit
- Southwest Washington Health System
- Starbucks Coffee Company
- State of Oregon
- State of Washington
- Swedish Medical Center
- Talisker Mountain Incorporated and Affiliates
- The Boeing Company
- The Children's Hospital Association
- The Compass Center
- The Kempe Foundation
- The Pokémon Company International
- The Polyclinic
- Trace | 3
- True Companies
- Underwriters Laboratories Inc.
- Unicon
- University of Washington
- University of Washington Medical Center
- Valley Medical Center
- Waggener Edstrom
- Walgreens
- Washington Dental Service
- Washington Imaging Services
- Western Washington University
- World Vision
- Yahoo! Inc.
- Zetron, Inc.