Unique Entity Identifier
A 12-character alphanumeric ID assigned when you register in SAM.gov. Replaced the DUNS number in 2022.
(Unique Entity Identifier) is a acronym concept federal contractors and grant writers run into across solicitations, regulations, and award filings
UEI is one of the federal-contracting acronyms that turn up in RFPs, contracting-officer correspondence, modifications, and compliance documents. It stands for Unique Entity Identifier. Understanding what UEI means in context is not optional for serious contractors — federal documents accumulate acronyms quickly, and misreading one early in an RFP can ripple through the technical volume, the cost narrative, and the management approach. The fastest way to internalize UEI is to read it in the context of an actual contract or solicitation rather than in a vacuum — pattern-recognition across multiple uses beats memorizing the definition once. Bureauify's glossary collects UEI alongside the related terms above so the network of meanings is browsable rather than scattered. For example: ABC123DEF456
ABC123DEF456
Search active federal contracts and solicitations related to UEI on Bureauify.
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