Vendors | Willdan

Willdan is committed to building an inclusive and diverse supply chain that promotes opportunities for all qualified vendors, including, but not limited to, trade professionals, contractors, suppliers, consultants, and subcontractors.

As part of Willdan's ongoing commitment to operating ethically, sustainably, and responsibly across all areas of our supply chain, we offer the following forms and framework:

  • Supplier and Subcontractor Code of Conduct & Diversity Program – provides guidance on expected conduct, reporting, and commitments while working with or on behalf of Willdan. Read, sign, and comply with this document if you are a supplier or subcontractor planning to provide services or goods to a Willdan program or project.
  • ACH/Direct Deposit Authorization Agreement – form to enroll in ACH/direct deposit for convenient receipt of payment during your work with Willdan.
  • Form W-9 – form required to receive payment by Willdan and support income reporting to the IRS.
  • Willdan's Insurance Requirements – provides guidance on insurance types, limits, and certificate details that are required to perform work with Willdan.
Willdan team members on a project site

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To become a vendor with Willdan, please complete our vendor application:
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