Small Contractor and Supplier Certification
Select a Method
CPA Affidavit Method (preferred)
Complete and submit the following forms:
- Business Application
- Personal Net Worth form for each owner
- Past 3 years Company Federal Income Tax Statement (all schedules)
- Avg. review period: 15 to 30 business days
Right to Privacy
King County, as a government entity, conducts public business and records related to the business of King County are generally available for public review. King County is committed, to the extent allowable by law, to protect and secure personal information contained in King County records. This privacy commitment must be balanced with the rights of public access under chapter 42.56 RCW, Washington Public Records Act, consistent with chapter 2.14 of the King County Code and any other applicable federal, state, and local statute or regulation.
Questions about Certification?
Monday - Friday
8 a.m. - 4:30 p.m.