Colorado · Government contracting
Colorado Government Contracts & Bid Opportunities
Last reviewed August 14, 2026 · How we source this
Colorado posts state opportunities through its central vendor system, with transportation work bid separately by CDOT. Denver and other home-rule cities run their own procurement, and a state prevailing-wage law now applies to larger public projects — an important factor when you price a bid.
Where Colorado opportunities are posted
- Colorado VSS (Vendor Self Service)
The State Purchasing & Contracts Office posts state solicitations and manages vendor registration through Colorado's vendor system.
- CDOT construction
The Colorado Department of Transportation bids highway and roadway construction through its own process; prequalification may be required.
Major buyers in Colorado
- Colorado Department of Transportation (CDOT) — Highways and roadways — civil and heavy construction trades.
- State Purchasing & Contracts Office (SPCO) — State agency buildings, goods, and services.
- Denver & home-rule cities, counties, districts — Denver and other home-rule cities run their own procurement; Denver Public Schools and counties are major buyers.
How to register as a vendor in Colorado
Register in Colorado's vendor system (VSS) to be a state vendor and receive solicitations, and register separately with home-rule cities like Denver and with counties and school districts. CDOT construction may require prequalification.
Good to know before you bid in Colorado
- Colorado requires prevailing wages on certain public projects of $500,000 or more under state law (the Keep Jobs in Colorado Act), in addition to federal Davis-Bacon on federally funded work.
- Denver and other home-rule cities run procurement independently of the state — register with them directly.
- Bid, performance, and payment bonds are standard on public construction.
- Cooperative purchasing is available as an additional channel.
New to the process? Start with How to Win Government Contracts, and keep the glossary handy for any unfamiliar terms.
Colorado government contracting FAQ
Where are Colorado government contracts posted?
Where are Colorado government contracts posted?
State agency solicitations are posted through Colorado's vendor system (VSS), managed by the State Purchasing & Contracts Office. CDOT bids highway work separately, and home-rule cities like Denver, along with counties and school districts, post on their own portals.
Does Colorado require prevailing wages?
Does Colorado require prevailing wages?
Yes, on certain public projects of $500,000 or more, Colorado's state prevailing-wage law (the Keep Jobs in Colorado Act) applies. Federal Davis-Bacon prevailing wages also apply on federally funded projects. Confirm which applies before pricing.
How do I register to bid Colorado state contracts?
How do I register to bid Colorado state contracts?
Register as a vendor in Colorado's vendor system (VSS) to receive state solicitations, and register separately with home-rule cities, counties, and school districts whose work you want to pursue.
Find Colorado contracts that match your business
GovBid Finder pulls Colorado state and local opportunities alongside federal work and scores each against your profile. Free to use; only pay 3% when you win.