Vendor Information

Applying for Admission to the Lewis County Vendor List

In order to be eligible for consideration for providing products and/or services to Lewis County, a vendor must have applied for and have been approved for admission to the Lewis County Vendor List. Please note that being placed on the Vendor List does not mean that a vendor will be contacted every time a purchase/contract is initiated.

A vendor may request to be added to the Vendor List at any time. Once added, a vendor will remain on the Vendor List until the vendor requests to be removed from the list or until the vendor is no longer in business. Periodically, a new Vendor Information form may be requested to ensure that all necessary information for a vendor’s record is up-to-date.

1. W-9 Form

This form must be completed in full, signed, and returned to Lewis County. This is a PDF document. The free Acrobat Reader can be obtained from

2. Mailing Information

Once the application is completed, please send the paperwork to:
Lewis County Auditor's Office - Financial Services
P.O. Box 29
Chehalis, WA 98532

Questions regarding the Vendor Information form may be directed to 360-740-1139.