SAM.gov

The US government’s System for Award Management, where firms register to do federal business and where federal contract opportunities are posted. Registration is free and gives a firm its Unique Entity ID.

Related terms

Unique Entity ID (UEI)

The 12-character identifier SAM.gov assigns to every organization registered to do business with the US federal government. It replaced the DUNS number in 2022.

NAICS code

The North American Industry Classification System code that describes what a business does. US federal tenders name one NAICS code, which sets the small-business size limit; 541511 is custom computer programming.