Go to HomeTug Boat Carl Designed By Greg Castleman
Greg Castleman, N.A.

Mr. Castleman has more than 37 years experience shipbuilding and the design and operation of service craft and offshore oil and gas drilling and exploration platforms. He is well-known for his pioneering tug designs and his efforts to gain acceptance of steerable propulsion systems to offshore and harbor vessels in the U.S.


B.S. in Naval Architecture and Marine Engineering

• Webb Institute of Naval Architecture, Glen Cove, NY, 1976

Mr. Castleman has been President of Castleman Maritime and its predecessor companies since 1987. Significant projects include:

• Detail design of 7 classes of escort tugs

• Detail design of 2 classes of crewboats

• Contract design of 35 classes of vessels, including tugs, crewboats, PSVs, Anchor Handling vessels, patrol boats, barges, tankers, etc.

• Detail design and construction supervision of conversions of 8 vessels for a U.S.-flag specialty container carrier. Management of vessel and cargo operations for same client

• Management of contract design of derrick/pipelay vessel

• Management of repairs and upgrades of 5 semisubmersible and jackup drilling and accommodation platforms

• Engineering site team supervision during construction of deepwater floating production platform.

• Tetra Offshore – resolution of issues with crane and winch systems on D/B Hedron

Greg Castleman



1976 to 1979 – Naval Architect and Marine Engineer,

• Designers & Planners, Inc. and Gibbs & Cox, Inc. Arlington, VA. Various U.S. Government projects

1979 to 1987 – Various Positions in Southeastern U.S.

• Drilling rig operations

• Shipyards (offshore service vessels, tugs, etc.)

• Consulting firms (design of offshore service vessels, tugs, barges, etc.)

1991 to 1993 – Engineering Manager, Tampa Shipyards

1993 to 1998 – Vice President, Aquamaster - Rauma Inc.

• Sales and marketing of steerable propulsion system

• 1998 to 2003 – Technical Manager, Noble Drilling Services.

• Site team engineering manager for conversions of deepwater drilling units