This industry comprises establishments primarily engaged in manufacturing machinery for use in performing farm operations, such as the preparation and maintenance of soil; planting, harvesting or threshing; field spraying; and preparing crops for market; or for use in horticultural and residential lawn care. Establishments primarily engaged in manufacturing snowblowers are included.

This industry comprises establishments primarily engaged in manufacturing heavy machinery and equipment of a type used primarily in the construction industry, such as crawler or rubber-tired tractors with bulldozer blade or ripper tooth attachments, front-end loaders, cranes, concrete mixers, power shovels and pavers. Machinery that can be used in both the construction and mining industries is treated as construction machinery. Establishments primarily engaged in manufacturing forestry machinery, such as tree harvesting and handling equipment, are also included.

This industry comprises establishments primarily engaged in manufacturing mining and oil and gas field industry equipment.