Registering as a King County Supplier - In Person Workshop
King County is delighted to invite you to our upcoming workshop on “Registering as a King County Supplier” on July 29, 2026, from 10AM - 12PM at the Tabor 100 Hub. The main purpose of this workshop is to assist and guide participants through the process of registering as a King County Supplier. By the end of this session, attendees will be successfully registered as a King County Supplier.
Preparation Checklist – Before attending the workshop, please ensure you have the following:
- W-9 uploaded to your computer.
- OMWBE certification number (if applicable).
- ALL NAICS codes that apply to your business.
- Kindly bring your laptop for an interactive and hands-on experience.
Bring your laptop!
7100 Fort Dent Way Ste 100, Tukwila, WA 98188

