SIC 2007 → 2026 converter
Need the old code and the new code?

Use the converter page to compare SIC 2007 codes with SIC 2026 codes and jump to the matching new classification page.

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Sources and methodology

Sources and Methodology

Primary-source data, lightly interpreted for readability.

Primary source

The main source is the ONS UK SIC 2026 classification release. We use it to build the hierarchy, labels, notes, and code pages.

How records are processed

Raw classification files are converted into structured JSON so the site can render complete navigation, search, and static pages at build time.

Editorial checks

We keep the wording concise, preserve official terminology where possible, and review obvious formatting or transcription issues before publishing updates.