What Is a UEN and How to Find a Company's UEN

A UEN, or Unique Entity Number, is the standard identifier ACRA and other Singapore government agencies use to identify a business, company or other organisation. If you need to invoice a Singapore company, check whether it's genuinely registered, or just find it on this site, its UEN is the fastest way to do it.

Why the UEN exists

Before the UEN, a business in Singapore could hold several different registration numbers depending on which government agency it dealt with — one from the then Registry of Companies and Businesses, another from the Comptroller of Goods and Services Tax, and so on. The UEN replaced all of these with a single number that every government agency recognises, issued at the point of registration by ACRA, or by the relevant authority for entities that register elsewhere (a society through the Registry of Societies, for example, still ends up with a UEN in the same national number range).

The three UEN formats

Every UEN ends in a single check letter, used to catch typos, but the digits before it differ by entity type:

• Businesses registered under the Business Names Registration Act (sole proprietorships and partnerships) get an 8-digit number plus a check letter — 9 characters in total.
• Local companies registered with ACRA get a 4-digit year of registration, a 5-digit running number, and a check letter — 10 characters in total. On this site, that structure is easy to see directly: Great Eastern General Insurance Limited's UEN, 192000003W, starts with 1920 because ACRA's predecessor registered it in 1920, and BRC Asia Limited's UEN, 193800054G, starts with 1938 for the same reason.
• Other entities — limited liability partnerships, foreign company branches, societies, representative offices and similar — get a format that starts with a "T" or "S" plus a 2-digit year, then two letters for the entity type, a 4-digit running number, and a check letter.

This site does not attempt to validate a UEN's check letter — treat a company page's UEN as confirmation instead, since it's copied directly from ACRA's own published record.

How to find a company's UEN

The fastest way is to search this site by the company's name using the search box at the top of any page — it matches from the start of the current registered name, and also against former names, so a company that has since rebranded is still found. If the company is registered and live and meets our publication criteria (seedata sources & methodology), its UEN is shown as a copyable chip at the top of its page.

If a company doesn't have a page here — because it's a sole proprietorship, a partnership, or hasn't been selected for the current publication wave — you can look it up directly on ACRA's own Bizfile service, which covers every entity on the register. A company's UEN is also normally printed on its invoices, quotations and letterhead, since GST-registered businesses are required to show it there.

What a UEN does and doesn't confirm

A valid-looking UEN on a document doesn't by itself confirm the company is genuinely registered, still live, or that the document actually came from that company — a UEN can be copied onto a fraudulent invoice as easily as any other number. To confirm a company is currently live, check its status directly, either on this site's company page or on Bizfile — seehow to check if a Singapore company is registered and live.