What is a UEI?
The Unique Entity ID is the government’s identifier for an organization that does business with it — twelve alphanumeric characters, issued free through the federal registration system, and used in every award record, payment, and reporting obligation that follows.
It replaced the DUNS number in April 2022. That change was more consequential than it sounds: the government moved from renting a proprietary commercial identifier to issuing its own. The identifier is now government-controlled, free, and part of the registration process rather than a prerequisite to be obtained elsewhere first.
Why an identifier matters more than it seems
Names are unreliable. Companies rebrand, use trade names that differ from their legal names, appear in one system as “Acme Software, Inc.” and in another as “ACME SOFTWARE INCORPORATED,” and get acquired without their federal records being merged. Any analysis built on matching names is building on sand.
The identifier fixes the join. Public federal award data, registration records, and reporting systems all carry it, which means a company’s federal history can be resolved to one entity rather than assembled from fuzzy matches. Everything this platform shows about a vendor’s public footprint depends on that being possible.
Where multi-entity companies get complicated
A company with several legally distinct entities has several identifiers, and public federal data does not automatically know they are related. This is the most common reason a company’s federal footprint looks smaller in public data than it feels from inside:
- An acquisition whose acquired entity kept its own registration and kept receiving awards under its own identifier.
- A subsidiary created for a specific market that registered separately.
- A legacy entity that was never retired and still carries historical awards.
None of this is wrong. It just means the public record shows three partial pictures where the company sees one business. Knowing which identifiers belong to you — and being able to say so — is the difference between a footprint you can substantiate and one you can only assert.
Getting one
The identifier is issued through the federal registration system after entity validation, where the government confirms your legal business name and physical address against authoritative records. Validation is the step that takes time, and it takes the most time for companies whose records are inconsistent across sources.
You can obtain an identifier without completing a full registration, which is the right path if you need one for a subcontract or a grant application but are not yet chasing prime awards. To actually receive a prime contract award you need the complete, active registration.
Practical hygiene
Three habits prevent most identifier-related problems:
- Record it where your team will find it. The identifier gets requested by primes, teaming partners, and grant systems, usually with a deadline. It should not require an archaeology expedition.
- Keep name and address consistent. Every future validation, renewal, and correction is easier when your legal name and address match across your incorporation documents, your registration, and your banking records.
- Know your related entities. If your company has more than one, list them and their identifiers deliberately rather than discovering the fragmentation during a proposal.
What it does not do
An identifier is not a qualification and not an endorsement. It says the government knows who you are. Eligibility for a particular award still depends on your registration being active, your representations being accurate, and — where a set-aside applies — your size and status qualifying you to compete for it.