COMPANYCORE Data coverage

ISIC REV. 4 · GROUP 421

Construction of roads and railways

Activity scope

Construction of roads and railways

This activity belongs to Construction / Civil engineering. The classification describes economic activities; company inclusion still requires a qualifying business record.

Browse Civil engineering companies

Company records are currently classified at division level. These results cover the broader division, not confirmed matches to this specific activity.

Explore specific activities

Related activities in this branch

Classification source

United Nations Statistics Division, ISIC Revision 4. Official English structure retrieved October 3, 2026. Broad navigation labels are simplified by COMPANY CORE.

View official classification structure

Revision 5 is a separate standard. This directory keeps Revision 4 identifiers for compatibility with its existing records.