An RFI is a market research instrument, not a solicitation. Agencies use RFIs to gather industry input on a planned acquisition — capabilities available, pricing ranges, technical approaches, schedule feasibility, and small business participation. RFIs are non-binding on both sides: the agency is not committing to issue a contract, and the responder is not committing to bid. Responses typically run 5 to 15 pages depending on the agency's questions.
RFIs serve multiple functions in the procurement lifecycle. They help contracting officers determine whether the requirement should be set aside under the Rule of Two or competed full-and-open. They surface technical approaches the agency may not have considered. They give the agency a list of qualified vendors to invite to industry days or draft RFP reviews. Most importantly, RFI responses shape the eventual Statement of Work — agencies often rewrite portions of the requirement based on industry feedback before the formal solicitation drops.
Small contractors should treat RFIs as influence opportunities, not optional tasks. A well-positioned RFI response that maps your capabilities to the agency's stated requirement can shift the eventual solicitation toward your strengths. Skipping RFIs concedes that influence to competitors. The strategic value of an RFI response is high relative to the effort — five hours invested in shaping the requirement is worth more than fifty hours invested in responding to a poorly-fit RFP later.