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How to Register as a Vendor in Colorado

Where
ColoradoVSS (Colorado Vendor Self Service)
Cost
Free (\"no start-up cost or annual fees\")
How long
Up to 5 business days for approval (IRS TIN match), per ColoradoVSS
Last checked
2026-09-27

See 109 open bids in Colorado →

What it's for

ColoradoVSS (formerly ColoradoBIDS) is where state agencies post solicitations and where vendors register, get email notices by commodity code, and respond online. The state calls it "a free site where you are able to view bids without any start-up cost or annual fees." You also get a vendor code used in the state's CORE financial system.

Have this ready

  • Taxpayer ID (FEIN/EIN) or SSN, and your legal business name exactly as the IRS has it (approval depends on an IRS TIN match)
  • Organization type, company name, and tax address
  • Primary address and primary contact (name, phone, email)
  • A security question and a user ID/password you'll remember
  • Commodity/service codes for what you sell (optional at sign-up, but you need them for email notices)
  • Business types/certifications (optional at sign-up)

Steps

Per the ColoradoVSS "New Vendor Registration" instructions:

  1. Go to the ColoradoVSS site and choose to sign up.
  2. Review and accept the Memorandum of Agreement, then read the Registration Tips.
  3. Create your user account and verify your email with the code sent to you.
  4. Search for an existing account by TIN (or last 4 of SSN) and legal name so you don't create a duplicate.
  5. Enter account information: organization type, TIN, company name, tax address.
  6. Enter primary address, primary contact, and business information/locations.
  7. Add commodity/service codes and business types (you can do this later).
  8. Review the summary and submit. You'll get a vendor code.
  9. Wait for approval. The Central Approval team runs an IRS TIN match, which "can take up to 5 days." You'll get an email when it's approved or told why it wasn't.

Foreign (non-US) vendors have separate instructions on the VSS site.

After you register

  • Add commodity codes once approved so you get email notices for matching solicitations.
  • Use the watchlist to track bids and respond online.
  • You can add more users and locations at no cost.
  • Help desk: vsshelp@state.co.us, Monday-Friday 8:00 a.m.-5:00 p.m. If your account was discontinued, you can send a current W-9 to that address.
  • Renewal requirements were not stated on the pages checked.

Watch out for

  • Construction and DOT are separate: CDOT highway and bridge construction bids post at codot.gov/business/bidding and generally require CDOT prequalification. CDOT goods and services also use the CDOT Business Center.
  • Not every agency uses VSS: several universities post on other systems, which may charge fees. The state's index of where departments post is on the Office of the State Controller's solicitations page.
  • Name mismatch = rejection. Enter the legal name exactly as on IRS records.
  • Paid third-party "registration services" are unnecessary. ColoradoVSS is free.

Certifications and bid preferences in Colorado

Standard bid forms for Colorado

These are the forms bidders are most often asked to sign or attach on Colorado state bids. Each bid lists exactly which ones it needs, and many agencies attach their own copies, so always use the version in the bid documents when there is one.

Authorization to Bid (SBP-6.10)
OSA form that authorizes a contractor to submit a bid on a state construction project.
When: State building construction bids (design/bid/build) run through the Office of the State Architect.
Bid Form (SBP-6.13)
The formal bid form for state construction; alternates, unit pricing and multiple-project bids use SBP-6.131, 6.133 and 6.134.
When: State building construction bids through OSA.
Information for Bidders (SBP-6.12)
The instructions and rules for bidding a state construction project; read it for the due-date and responsiveness rules.
When: State building construction bids through OSA.
Bid Bond (SBP-6.14)
Surety guarantee that your bid is valid and you will sign the contract if awarded.
When: State building construction bids that require bid security.
Apprenticeship Utilization Certification (SBP-2.1)
Certifies you will meet registered-apprentice requirements for mechanical, electrical, plumbing and similar trades.
When: State construction projects of $1 million or more.
Performance Bond (SC-6.22)
Surety bond guaranteeing you will finish the state construction contract.
When: Awarded state construction contracts, when bonds are required.
Labor and Material Payment Bond (SC-6.221)
Surety bond guaranteeing workers, subs and suppliers on the project get paid.
When: Awarded state construction contracts, when bonds are required.
Workers' Compensation Certification (SBP-4.1)
Certification that you carry the required workers' compensation coverage.
When: State construction contracts through OSA.
Prevailing Wage Certified Payroll (LCPtracker) and Labor Poster
Weekly certified payroll entered in LCPtracker, a posted labor notice and a daily log of workers; price your bid at the state wage determinations.
When: State-funded construction projects of $500,000 or more without federal funding.
Public Contracts for Services and Illegal Aliens Certification/Affirmation (C.R.S. 8-17.5-102)
You certify you do not knowingly employ illegal aliens and will verify workers, using E-Verify or the Department Program; a Certification and Affidavit is used for small purchases under $5,000.
When: State and local government service contracts.
CDOT Contractor Prequalification (B2G)
General contractors must be prequalified in CDOT's B2G system at least 17 days before bid due; subs do not need to prequalify.
When: CDOT highway and bridge construction bids (submitted through Bid Express).

Common questions

Is it free to register as a vendor in Colorado?

Free (\"no start-up cost or annual fees\")

Where do I register to bid in Colorado?

ColoradoVSS: https://vss.state.co.us/

How long does Colorado vendor registration take?

Up to 5 business days for approval (IRS TIN match), per ColoradoVSS

What forms do I need to bid on Colorado state contracts?

Each bid lists its own forms. Ones bidders are commonly asked for include: Authorization to Bid; Bid Form; Information for Bidders; Bid Bond; Apprenticeship Utilization Certification. The full list with links to the official blank forms is on this page.

Sources

FindMyBids isn't affiliated with any government agency. Registration is free or low cost on official sites; you don't need to pay a third party. Always follow the official portal's instructions.

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