Skip to content
DefenceContractors

Sources sought notices and other pre-RFP signals

14 Oct 2026 · 7 min read · DefenceContractors research team

Engineer sketching requirements on a whiteboard during an early planning session

A sources sought notice is market research published before a tender: the buyer describes a need and asks which companies could meet it, without asking for prices or proposals. Together with requests for information and prior information notices, it is the earliest public signal that a tender is coming, often months ahead.

The three most common pre-RFP signals

Sources sought notices are used in US federal procurement as part of market research under FAR Part 10. The answers help the contracting officer decide whether to set the work aside for small businesses and how to shape the requirement.

Requests for information (RFIs) ask industry for technical or pricing information to help plan an acquisition. In the United States they fall under FAR 15.201(e). European and UK buyers use them too, often as preliminary market consultation before a formal procedure.

Prior information notices (PINs) are used in the European Union and the United Kingdom to announce planned procurements, sometimes up to a year ahead. Under the EU defence and security directive, a PIN can also shorten the later tender deadline.

Other signals include industry days, draft solicitations, forecasts of contracting opportunities and the procurement plans that many ministries publish each year.

Why answering early pays

An answer to a sources sought notice or an RFI puts your company in front of the people writing the requirement. It can influence the scope, the lot structure and whether a small business set-aside is used. It also signals interest to the primes that read the same notices and are looking for partners. By the time the formal tender is published, most of these decisions are fixed.

How to answer a sources sought notice

  1. Follow the format. Use the page limit and the order the buyer asked for. Notices often ask for capability statements of five pages or fewer.
  2. Address the stated need. Show how your product or service meets each requirement, with evidence from past contracts.
  3. State your size and registrations. Business size, socio-economic status, UEI and CAGE codes in the United States, or national codes elsewhere.
  4. Suggest, briefly. If the requirement could be better split or specified, say so politely with a reason.
  5. Name a contact. A person who can answer questions quickly.

Do not include prices unless asked, and never send export-controlled technical data in an open answer.

Turning signals into a pipeline

A single notice is easy to miss, and buyers publish thousands. The practical approach is to filter signals by your categories and target buyers, then review them weekly together with contracts that are about to end. A recompete preceded by an RFI from the same office is one of the strongest signals that a competition is about to start.

Pre-RFP signals in DefenceContractors

We classify every opportunity by kind, so prior information notices, RFIs, sources sought notices and forecasts appear next to open tenders, each with the buyer, the deadline and the source link. Open the defence contracts open for bid page to see current notices, or describe your capabilities on the home page to see which early signals fit your company.

Find my opportunities