A Sources Sought Notice is a government research tool to determine if there are two (2) or more capable Small Businesses that can perform the requirements of a planned contract.
The government is required in certain instances to “set-aside” a certain percentage of their procurements to small businesses. Sometimes the solicitation will specify explicitly that they are looking only for small businesses (or HUBZone, …) to respond. (Even if it doesn’t say “only small businesses” it means only small businesses.)
AcqLinks and References: