Saltchuk Resources operates via water, air, and land. Through about 20 affiliates, it is involved in air cargo, marine transport, petroleum distribution, real estate development, and marine services businesses mostly in the Pacific Northwest and Hawaii. Among the company's vast holdings are Foss Maritime, which does business on the East and West Coasts, and Northern Air Cargo, one of Alaska's largest air cargo carriers. Formed in 1982, Saltchuk Resources was originally a marine transportation company.