Cornerstone serves as a general contractor and construction manager, building elementary schools, middle schools, and high schools, in addition to other similar projects, primarily in Western Washington, via Lump-Sum, GC/CM, or Progressive Design Build contracts.

Invitation to Subcontractors and Vendors

To receive invitations by email or fax to bid on our projects, please fill out the following information:

  • Enter one region per box. Examples: “Sammamish, WA” or “Western Washington”. To add more regions than will fit here, use the "Additional Information" box further below.
  • Enter one per box. Examples: “28200 Asbestos Abatement,” “Rough Carpentry,” or “Division 7.” To add more than will fit here, use the "Additional Information" box further below.
  • MBE certification number:
  • WBE certification number:
  • HBE certification number:
  • DBE certification number
  • SBE certification number:
  • HUB certification number:
  • Full name
  • Title
  • Office phone
  • Phone extension
  • Mobile phone
  • Email
  • Full name
  • Title
  • Office phone
  • Phone extension
  • Mobile phone
  • Email
  • (including additional regions served, services, materials, or contacts)