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Subcontractors and Suppliers: Start Here

We look forward to working with you as a subcontractor or supplier! First, all subcontractors and suppliers need to be prequalified to be eligible to bid for and take on contract work with McGough. You will need to go through this process annually, so keep your files.


Note that the form for existing subcontractors MUST be filled out each year, and is a separate form at the link below.

New contractors and suppliers – be sure to use the appropriate form.

Before You Begin: Gather Required Documents

Please have the following documents ready for electronic upload with submission to make this process as quick and efficient as possible and avoid losing work as you enter information in our online portal. Please note that all financial information associated with the prequalification process is kept strictly confidential.

  • W-9 Form (completed and signed)
  • Certifications (WBE, MBE, DBE, etc.)
  • Certificate of Insurance (including endorsements)
  • OSHA 300A Forms (provide three-year history)
  • EMR Letter of Verification (provide three-year history)
  • Company Safety Manual (no more than two years old – compressed PDF format <20 MB)
  • Bonding Capacity Letter (DO NOT SUBMIT BOND)
    • **Must be less than one year old.
  • CPA-Prepared Financial Statement
  • Quality Assurance/Quality Control Manual (compressed PDF format <20 MB)

Launch the Prequalification Portal

Once you have collected required documentation and reviewed the instructions, open our McGough Prequalification Portal to enter your information.

Launch Portal


If you need additional assistance or have questions, contact the McGough Prequalification Department at

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