This industry comprises establishments primarily engaged in the construction (including new work, additions and major alterations) of industrial buildings (except warehouses). The construction of selected additional structures, whose production processes are similar to those for industrial buildings (e.g., incinerators, cement plants, blast furnaces, and similar non-building structures), is included in this industry. Included in this industry are industrial building general contractors, industrial building operative builders, industry building design-build firms, and industrial building construction management firms.

This industry comprises establishments primarily engaged in the construction (including new work, additions and major alterations) of commercial and institutional buildings and related structures, such as stadiums, grain elevators, and indoor swimming pools. This industry includes establishments responsible for the on-site assembly of modular or prefabricated commercial and institutional buildings. Included in this industry are commercial and institutional building general contractors, commercial and institutional building operative builders, commercial and institutional building design-build firms, and commercial and institutional building construction management firms.