On a public building project the owner decides whether one prime contractor holds the whole job or several primes hold separate trades under the owner. That structure decides whether a general contractor bids as the single prime over all trades or competes for one prime package among several, and it changes coordination, risk, and the bid itself.
What single prime and multiple prime delivery mean
Under single prime delivery one general contractor contracts for the entire project and subcontracts the trades, carrying coordination and schedule risk across the whole job. Under multiple prime delivery, required by statute in some states for public work, the owner holds separate contracts with a general trades prime and the mechanical, electrical, and plumbing primes, and a contractor bids only its prime package. Some states require multiple prime above a project threshold. The structure decides what a contractor bids and who coordinates the trades.
Why the delivery structure is easy to misread
Whether a project is single prime or multiple prime is set in the procurement section and the instructions to bidders, not the title. A contractor that expects a single prime job and finds separate prime packages, or assumes it will coordinate trades the owner has split out, misjudges both the scope it is bidding and the coordination it owns. Across many portals the structure is a quiet decision with large consequences.
How an AI bid agent sorts single from multiple prime
An AI bid agent reads each solicitation and identifies whether the project is single prime or multiple prime, and which prime package is being bid, then surfaces the coordination and scope that come with it. The contractor knows exactly what it is responsible for before it prices.
You can see the delivery structure surfaced per opportunity in our AI bid agent demo for general contractors. The agent reads it out of the procurement section so scope and coordination are clear before the bid.