Seattle Marine has been in the boating and commercial fishing business for more than 60 years. They stock many major brands of marine supplies from the top vendors in the industry. They stock crab gear, Grundens rain gear, stainless marine hardware, sport fishing supplies, and commercial marine supplies from hydraulic pumps to fish hooks. Seattle Marine also carries some of the harder to find products manufactured by the smaller independents, such as EZ-Pull davits, Baier hatches, Youngquist jigs, Wesking, Hard Wire Tackle, and Roald needles.

A sampling of the major marine supplies: Teleflex steering and controls, Ancor wire, AFI wipers and horns, Perko hardware, Dutton trailer parts, Davis accessories, Rule pumps, Marinco electrical, Seadog hardware, Boatlife sealants, Blue Seas electrical, Flojet pumps, Morse controls, Meguires cleaners, Garelick seats and motor brackets, Cal June buoys, Forschner knifes, Jabsco marine pumps, lights and heads, Tie Down trailer parts, Guest switches, XtraTuf boots, Hella lights, Beckson deck plates, Polyform buoys, Russell knives and Ritchie compasses.