Overview
Register where the agency posts
Public agencies choose where they advertise bids and how they take responses. A contractor usually needs its own vendor account on each system its target agencies use: SAM.gov for federal work, the state's eProcurement portal for state agencies, and whichever bid platform a city, county, school district or utility has picked.
Each guide below walks through one portal's registration, how to find its solicitations and how to submit a response, using the portal's own published instructions. Portals change their steps, so confirm details on the official site before you rely on them.
Federal
Federal registration
Federal construction work starts with an active SAM.gov entity registration.
SAM.gov
SAM.gov registration guide for contractors: Login.gov, All Awards registration, entity validation, UEI, EIN/TIN, EFT, and CAGE code steps.
State portals
State procurement portals
Statewide systems where state agencies post solicitations and keep their supplier records.
Cal eProcure (California)
How to register on Cal eProcure as a California bidder, add UNSPSC codes for CSCR notices, find state events, and submit construction bids in 2026.
MyFloridaMarketPlace (Florida)
How to register on MyFloridaMarketPlace (MFMP): Vendor Information Portal steps, UNSPSC codes, Florida's W-9, the 1% transaction fee, and finding bids.
ESBD and SmartBuy (Texas)
Texas ESBD and CMBL for contractors: search state bids on SmartBuy with no login, join the CMBL for $70 a year, pick NIGP codes and renew.
Georgia Procurement Registry
How to register in GA@WORK Marketplace for Suppliers, pick NIGP codes, search the Georgia Procurement Registry, and respond to Georgia bids.
SCBO (South Carolina)
How South Carolina contractors register as State vendors in SCPro, find construction bids in SCBO, and meet OSE bid rules after the Nov. 2026 switch.
Bid platforms
Multi-agency bid platforms
Platforms that many cities, counties, schools and utilities use to post bids and take responses.
BidNet Direct
How to register on BidNet Direct, choose a Purchasing Group, set notification options, and submit construction bid responses in 2026.
Bonfire (Euna)
How to register on Bonfire as a vendor, create a free Euna Supplier Network account, choose NIGP codes, and submit bid responses.
OpenGov Procurement
How to use OpenGov Procurement as a vendor: register, activate your account, update your profile, subscribe to agencies, and submit bids.
CivCast
How to register on CivCast as a contractor: create a free account, download plans and specs, track addenda as a plan holder, and submit e-bids.
Registered on several portals? Search them in one place
Keep each vendor registration the agencies require. ConstructionBids.ai brings thousands of portals into one feed with source links and deadline alerts.