Comparison hub
Crosswalk pages in one place
Use this hub when the task is mapping between releases or between Singapore and international standards. Each card points to a dedicated comparison or target hierarchy page.
Start from your task
Check a Singapore industry code against ISIC Start from the SSIC to ISIC table, then open the ISIC class page for reverse links back into SSIC. Compare releases inside Singapore standards Use the 2025 vs 2020 SSIC and 2024 vs 2020 SSOC pages for migration work. Move from Singapore occupations to ISCO-08 Open the SSOC to ISCO-08 table when you need the international occupation alignment.
Available crosswalks
Industry migration SSIC 2025 vs SSIC 2020 Backward mapping from the current Singapore industry release to the previous release. International industry SSIC 2025 vs ISIC Rev. 5 Official bridge from Singapore industry codes into the international hierarchy. Occupation migration SSOC 2024 vs SSOC 2020 Backward mapping from current Singapore occupations to the previous edition. International occupation SSOC 2024 vs ISCO-08 Official bridge from Singapore occupations into the international occupational standard. Target hierarchy ISIC Rev. 5 hierarchy Browse the full international industry structure that appears in SSIC crosswalk rows. Primary sources Methodology and source policy How mapping pages are built and when official files override this site.
How to use these pages
1. Start with the row
Open the comparison table that matches your task and locate the exact code row before interpreting the hierarchy.
2. Open linked hierarchy pages
Use the linked SSIC, SSOC, or ISIC pages to understand nearby classes, parents, and sibling entries.
3. Confirm against sources
For operational use, verify the official workbook row and any definition notes before finalizing the classification choice.
Related routes
Reference hub SSIC 2025 directory Browse the full Singapore industry hierarchy before narrowing into crosswalk rows. Reference hub SSOC 2024 directory Browse the occupation hierarchy before opening release or international mappings. International target ISIC Rev. 5 hierarchy Browse the international industry tree that appears in the SSIC correspondence. Method Methodology Review the source policy and page-generation rules behind the mapping pages.