uk-sic-codes

Fast, zero-dependency UK SIC 2007 code lookup, search, and validation for Node.js and the browser.

Built by BORSCH.AI — UK Business Intelligence Platform covering 5.9M companies with AI-powered risk analysis and 50M+ government data signals.

Features

• Complete UK SIC 2007 database (731 codes, 21 sections, 88 divisions)
• Fuzzy keyword search with relevance scoring
• Code validation (4 or 5 digit formats)
• Section and division browsing
• Full hierarchical tree
• Zero dependencies
• TypeScript types included
• Works in Node.js and the browser
• ESM and CommonJS support

Installation

npm install uk-sic-codes

Quick Start

import { lookup, search, validate } from "uk-sic-codes";

// Look up a code
const code = lookup("62012");
// {
//   code: "62012",
//   description: "Business and domestic software development",
//   section: "J",
//   sectionName: "Information and Communication",
//   division: "62",
//   group: "620",
//   classCode: "6201"
// }

// Search by keyword
const results = search("restaurant");
// [
//   { code: "56101", description: "Licenced restaurants", ... },
//   { code: "56102", description: "Unlicenced restaurants and cafes", ... },
//   ...
// ]

// Validate a code
validate("62012"); // true
validate("00000"); // false

API

lookup(code: string): SICCode | null

Look up a SIC code by its numeric string. Accepts 4 or 5 digit codes.

lookup("62012");  // Business and domestic software development
lookup("1110");   // Growing of cereals (auto-pads to 01110)
lookup("62.01.2"); // Also works (strips punctuation)

search(query: string, limit?: number): SICCode[]

Search codes by keyword. Case-insensitive with relevance scoring.

search("software");           // All software-related codes
search("coal mining");        // Multi-word search
search("manufacture", 5);     // Limit to 5 results

validate(code: string): boolean

Check if a string is a valid UK SIC 2007 code.

validate("62012");  // true
validate("99999");  // true (Dormant Company)
validate("abc");    // false
validate("00000");  // false

listSection(letter: string): SICCode[]

Get all codes in a section (A-U).

listSection("J");  // All Information and Communication codes
listSection("A");  // All Agriculture codes

listDivision(code: string): SICCode[]

Get all codes in a 2-digit division.

listDivision("62"); // IT activities (62011, 62012, 62020, 62030, 62090)
listDivision("56"); // Food service (56101, 56102, 56103, ...)

tree(): SICSection[]

Get the full hierarchy: all sections with their divisions and codes.

const hierarchy = tree();
// [
//   { letter: "A", name: "Agriculture...", divisions: ["01","02","03"], codes: [...] },
//   { letter: "B", name: "Mining...", divisions: ["05","06",...], codes: [...] },
//   ...
// ]

sections(): Array<{ letter: string; name: string }>

Get all 21 section letters and names.

sections();
// [
//   { letter: "A", name: "Agriculture, Forestry and Fishing" },
//   { letter: "B", name: "Mining and Quarrying" },
//   ...
// ]

count(): number

Get the total number of codes in the database.

count(); // 731

Types

interface SICCode {
  code: string;        // 5-digit code, e.g. "62012"
  description: string; // Full description
  section: string;     // Section letter, e.g. "J"
  sectionName: string; // Section name, e.g. "Information and Communication"
  division: string;    // 2-digit division, e.g. "62"
  group: string;       // 3-digit group, e.g. "620"
  classCode: string;   // 4-digit class, e.g. "6201"
}

interface SICSection {
  letter: string;      // Section letter
  name: string;        // Section name
  divisions: string[]; // 2-digit division codes
  codes: string[];     // All 5-digit codes in this section
}

Data Source

Based on the official UK SIC 2007 condensed list published by Companies House and the Office for National Statistics.

Need More Company Data?

This package provides SIC code lookup. For full UK company data — search, risk scores, director networks, government signals, and AI-powered analysis across 5.9 million companies — visit borsch.ai.

License

MIT