Our Mission

To provide expert advise to our clients, ensuring they have the information necessary to complete their maritime projects. 

To build partnerships, teams, and coalitions leading to minimal disruptions to the movement of goods and people, while maximizing recreational enjoyment and environmentally sound use of navigable waters.

Who we are

Arenstsm Maritime Consulting LLC is a certified Veteran Owned Small Business.

John Arenstam retired from the U.S. Coast Guard with the rank of Captain after 27 years active duty.  He served in Coast Guard ships all around the country,  sailing along every coast and all 5 Great Lakes.  His assignments included Captain of the icebreaker PENOBSCOT BAY on the Hudson River, and the seagoing buoy tender FIREBUSH out of Kodiak, Alaska.

John has spent most of his Coast Guard career in waterways management, aids to navigation and bridge administration at offices in Virginia, New Orleans, and Washington DC and aboard "black hulls" around the nation. John represented the USCG at the International Association of Aids to Navigation and Marine Authorities (IALA).  During his time in Washington he worked for the USCG Director of International Affairs, and gathered considerable worldwide exposure, while conducting analysis and training overseas.  John most recently served as the Deputy Sector Commander in New Orleans and as the Director Western Rivers for the Eighth Coast Guard District. After his Coast Guard career John has worked as Safety Manager for an AEP River Operations and as the Assistant Director for Seamens Church Institute Center for Maritime Education.

John graduated from the US Coast Guard Academy in 1987 with a BS in Mathematics and earned his MS in Operations Research from The George Washington University in 2001.  He is a Type II certified Incident Commander and has been published in the Proceedings of the Marine Safety & Security Council, the Coast Guard Journal of Safety at Sea,.

What we do

Provide consulting services for:

  • Navigational safety

  • Bridge permit reviews

  • Private aids to navigation

  • Wreck, hazard to navigation determinations and marking requirements

  • Artificial reefs, citing and marking requirements

  • Risk management 

  • Expert witness, Aids to Navigation, Waterways Management, Marine Information

  • Marine transportation system

  • Hurricane response, restoration, and recovery