Singapore Unique Entity Number

Detects Singapore Unique Entity Numbers (UEN) issued by ACRA and other agencies to businesses and other entities. Common forms are 8 or 9 digits plus a check letter (local companies) and the issued-year form TyyPQnnnnX / SyyPQnnnnX / RyyPQnnnnX used for other entities.

Type

regex

Engine

boost_regex

Confidence

medium

Confidence justification

Medium confidence: digit+letter patterns can collide with other IDs; UEN/ACRA/entity keywords substantially improve precision.

Jurisdictions

sg

Regulations

PDPA (SG), ACRA Act

Frameworks

ISO 27001, ISO 27701

Data categories

business-identifier, government-id

Scope

narrow

Risk rating

5

Platform compatibility

Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Compatible, Netskope: Unsupported

Pattern

\b(?:\d{8}[A-Z]|\d{9}[A-Z]|(?:T|S|R)\d{2}[A-Z]{2}\d{4}[A-Z])\b

Corroborative evidence keywords

UEN, unique entity number, ACRA, entity number, corporate number, マイナンバー, 法人, 法人番号, corporate identification, corporate my number, houjin bangou, my number, 会社法人等番号, 国税庁, 法人マイナンバー, 法人番号公表サイト

Proximity: 300 characters

Should match

• 200312345A — 9-digit local company UEN style
• 12345678A — 8-digit older local company style
• T13LL0001B — Issued-year other-entity UEN

Should not match

• 1234567A — Only 7 digits before check letter
• A13LL0001B — Invalid year prefix letter A
• T13L0001B — Only one entity-type letter instead of two

Known false positives

• Other agency file numbers with similar shapes. Mitigation: Require UEN/ACRA/business registration keywords.

References

• About UEN - Singapore

Collections

• Coverage Phase 1 Priority Identifiers