Partner With 3Rivers General Contracting

Thank you for your interest in working with 3Rivers General Contracting. We partner with skilled subcontractors, suppliers, trades, and service providers across the Greater Pittsburgh region to support commercial construction, restoration, mitigation, and high-end residential projects.

To become an approved vendor, please complete the registration form and upload all required documentation. Our team will review your submission and follow up with any next steps.

Incomplete submissions may delay approval.

Required Vendor Documents

Please upload the following documents as part of the registration process.

1. Certificate of Insurance (COI)

Your Certificate of Insurance must list 3Rivers General Contracting as “Additionally Insured.”

Please use the following information:

3Rivers General Contracting
1735 E Carson St, Suite 324
Pittsburgh, PA 15203

2. Trade License

Please upload any applicable trade licenses associated with your business or scope of work.


3. State Registration

Please upload a current copy of your state registration documentation.


4. W9 Form

Please upload a completed and signed W9 form for tax and vendor processing purposes.


5. ACH / Direct Deposit Information

To streamline vendor payments, please upload:

  • ACH authorization form

  • Voided check

All financial information is handled securely and used solely for payment processing purposes.


Vendor Agreement & Electronic Signature

Please download the Vendor Agreement PDF using the link below.

After completing and signing the agreement, upload the finalized document as part of your vendor registration submission.

Download Vendor Agreement: (Insert PDF download button/link here)

Please ensure:

  • All required fields are completed
  • The agreement is signed before upload
  • The uploaded file is legible and complete

What Happens Next

After submission:

  • Our team will review your information

  • You may be contacted for additional documentation or clarification

  • Approved vendors will receive confirmation via email

  • Vendor agreements will be sent electronically for signature

Please allow time for processing and review.

Vendor Registration & Compliance Portal

Please carefully review all required documentation and instructions below before submitting the form, including the downloadable Vendor Agreement that must be completed, signed, and uploaded with your submission.

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