This U.S. industry comprises establishments primarily engaged in supplying labor for agricultural production or harvesting. Cross-References. Establishments primarily engaged in-- ? Providing machine harvesting--are classified in U.S. Industry 115113, Crop Harvesting, Primarily by Machine; and ? Providing farm management services (i.e., on a contract or fee basis) and arranging or contracting farm labor for the farm(s) it manages--are classified in U.S. Industry 115116, Farm Management Services.