Public vs private RFPs: what’s the difference, and why it changes how you sell

An RFP — a request for proposal — is a document that describes what a buyer wants and asks vendors to propose how they’d deliver it and at what price. The format is roughly the same whoever sends it. What changes everything is who the buyer is. A government agency and a private company can issue near-identical RFPs and run two completely different processes behind them, because a public buyer is spending public money under public rules, and a private buyer is not.

What makes an RFP “public”

A public RFP is issued by a government body — federal, state, county, city, a school district, a public university. Public buyers are required by procurement law to buy competitively and openly, and that single fact shapes the whole process:

• It’s posted where anyone can see it. Federal opportunities go on SAM.gov; state and local ones go on public bid portals. You don’t need an invitation to find or respond to a public RFP — that openness is the point.
• It’s governed by a rulebook. Federal buying follows the Federal Acquisition Regulation (FAR); states and localities have their own procurement codes. The rules set how the RFP is written, how questions are answered, and how the award is made.
• It’s transparent, often by law. Public-records laws — the federal Freedom of Information Act and its state equivalents — mean much of the process, and sometimes the winning proposal, can be requested and seen after award.
• It’s scored against stated criteria. The RFP usually publishes its evaluation factors and their weights, and the agency must evaluate against them — whether that’s lowest price, or “best value” balancing price and technical merit.
• It gives losers a right to object. On federal work an unsuccessful bidder can file a bid protest (for example with the GAO) if it believes the process wasn’t followed. Private buyers owe no such process.

What makes an RFP “private”

A private RFP is issued by a company — a corporation, a hospital system, a nonprofit — spending its own money. It’s under no statutory obligation to compete openly, and that freedom shapes its process just as strongly:

• It may never be posted publicly. Many private RFPs go only to a shortlist the buyer already has in mind. You hear about them because you’re on a vendor list, you have a relationship, or a partner brings you in — not because you found them on a portal.
• The buyer sets its own rules. There’s no FAR. The company decides the format, the timeline, who’s invited and how it evaluates — and can change any of it along the way.
• It’s private. A private RFP and the proposals it draws are generally not subject to public-records laws, so you won’t see competitors’ bids and the process isn’t open to outside review.
• It’s often negotiable and relationship-driven. Private buyers can negotiate freely after proposals come in, and an existing relationship or a warm introduction frequently matters as much as the document you submit.
• There’s no protest process. If you lose, there’s usually no formal channel to challenge the decision — the buyer simply chose someone else.

The differences that change how you sell

Put side by side, the contrast is less about the paperwork and more about how you get in and how you win:

• Finding it. Public: search open portals — the opportunity is there for anyone to see. Private: get on the list before the RFP exists, because you often can’t find it after.
• Getting in. Public: meet the stated eligibility and submit. Private: earn the invitation through relationships, references and being visible to the buyer early.
• The decision. Public: scored against published criteria, with a paper trail. Private: judged on the buyer’s own terms, with room for negotiation and for factors that were never written down.
• Speed and flexibility. Public: predictable but slow, and rigid once it’s out. Private: can move fast, and the buyer can shape it around what it actually wants.
• After the loss. Public: you can ask for a debrief, and protest if the rules weren’t followed. Private: you ask for feedback and work on the relationship for next time.

A public RFP rewards the vendor who reads the rules best. A private one rewards the vendor the buyer already knows. Winning across both means doing each — and starting earlier than the document.

Which should you pursue?

For most vendors the honest answer is both, weighted to where their buyers actually are. Public work is discoverable and fair, which makes it a dependable place to build a pipeline and a track record — at the cost of a slower, more rigid process. Private work is faster and more relationship-driven, and a strong reference from a public contract is often exactly what earns the invitation to a private one. The two feed each other. What they share is the part that decides both: being in front of the buyer before the RFP lands, not after.

How VeloCapture helps

VeloCapture works both sides of that line. For public RFPs, it pulls opportunities automatically from the sources it covers — SAM.gov, Grants.gov and state and local portals — and matches them to what you sell, so you see the ones worth bidding without watching every portal. For a private RFP you’ve been invited to, you can add it by hand with its attachments, and every AI tool — the bid brief, the compliance matrix, the draft, the teaming and bid/no-bid calls — works on it exactly the same way. And because private deals are won before the document exists, the Leads side of VeloCapture finds private companies that fit your offering and surfaces buying signals about them, so you can build the relationship early — which, for private work, is the whole game.