The National Institute of Standards and Technology (NIST) is conducting market research to identify vendors capable of providing one Open RAN Cellular End-to-End System software with support. This is a sources sought notice, not a request for quotation, and no solicitation is currently available. The government will use responses to determine if a small business set-aside opportunity exists, but all responsible sources, including large and small businesses, are encouraged to respond. No budget amount or performance location is specified in the description. No submission timelines are provided, as this is a market research tool only.