What are the key differences between a presolicitation notice and a sources sought notice?

A sources sought notice is a tool for market research, while a presolicitation notice indicates an upcoming solicitation. You should prioritize responding to sources sought notices if you are trying to influence an agency's decision on a small business set-aside. These notices help agencies determine if there are enough capable small businesses to justify a set-aside, for example, under the Rule of Two where two or more responsible small businesses can offer competitive prices, quality, and delivery (FAR 19.502-2(b)). Your response helps the contracting officer decide how to structure the eventual solicitation.

Responding to a presolicitation notice is more about preparing for an impending solicitation. It typically announces that a Request for Proposal (RFP) or other solicitation is on its way, giving you advanced warning to get your team ready. For federal contracts, agencies must allow at least a 30-day response time for solicitations expected to exceed the simplified acquisition threshold of $350,000 (FAR 5.203(c)). For state or local buys, the rules vary by jurisdiction, so check the specific state procurement portal and its vendor guide for details. Both types of notices are important for your pipeline, but sources sought notices offer an earlier opportunity to shape the procurement strategy.