RFQ vs RFP vs RFI
The three requests differ by who owns the specification. An RFI gathers information, an RFP asks a supplier to propose a solution, and an RFQ prices a specification the buyer has already fixed.
The three requests differ by who owns the specification. An RFI gathers information before one exists, an RFP asks suppliers to propose a solution to a stated problem, and an RFQ prices a specification the buyer has already fixed.
The three are usually distinguished by formality or by stage. Specification ownership is the cleaner test, because it predicts what each document contains and what the supplier is being asked to supply.
A request for information gathers capability data. Neither party has a specification. The buyer is establishing who exists, what they can do, and whether they are worth including later. Pricing in an RFI response is indicative at best and frequently declined.
A request for proposal states a problem and asks for a solution. The buyer owns the requirement and the supplier owns the approach, so responses differ in method as well as in price and are scored against weighted evaluation criteria. In manufacturing this appears for programme work, tooling projects, and multi-year supply agreements rather than for parts.
A request for quote prices a fixed specification. The buyer owns it in full, usually as a drawing with tolerances, material, quantity, and delivery. Responses are comparable because the only variables are price, lead time, and terms.
That is why the request for quote is the dominant form in this sector. Manufacturing SEO has the request for quote as its primary conversion event, and it dominates because the specification is a drawing rather than a description of a business problem.
The sequence is not always all three. A qualified supplier with an existing relationship often receives a request for quote directly, while a new entrant meets the request for information first. The industrial buying cycle typically spans several months to more than a year partly because moving between these stages requires internal approval at each step.
For a supplier, the practical consequence is what each document rewards. An RFI rewards published capability data that can be matched. An RFP rewards a stated method. An RFQ rewards responsiveness and accuracy, because the specification is already settled and the supplier is competing on execution.
See RFQ for the definition, the RFQ process for what happens after one is issued, and the industrial buyer journey for where each request falls.
Last reviewed . Published by ManufacturingSEO.ai.