Welcome to Humco Humco Marine Products distributes the highest quality marine products to support the marine industry and commerce across the Inland Waterways and the Western Rivers. Since 1966, Humco has been a supplier of marine equipment with a full commitment to outstanding customer service and competitive prices. Make your next purchase a success with Humco. View Our Products Humco carries a full inventory of the finest quality marine products. Our large product line of name brand manufacturers include everything you need to supply your vessel. You can view our full line of inventory and contact us for the products you need.