Donjon Marine
Hillside, New Jersey marine contractor offering salvage, dredging, towing, heavy-lift, diving, engineering and demolition services on the East Coast and Great Lakes.
Hillside, NJ · Company
About
Donjon Marine was founded in 1964 by J. Arnold Witte, with marine salvage and marine transportation as its principal activities. It later expanded into dredging, ferrous and non-ferrous recycling and heavy-lift services.
Miami-based investment firm Tallvine Partners acquired Donjon Marine in September 2025, and in May 2026 added Lind Marine to the same marine infrastructure platform. Donjon's fleet includes twelve tugs, four dredges, crane barges, hopper scows (including Witte 3300 series built by Donjon Shipbuilding & Repair LLC), deck and truckable barges, crew boats, survey and diving vessels. Memberships include the International Salvage Union and the Maritime Association of the Port of NY/NJ.
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