Substructure

Contracting Service

Substructure provides complete, fully integrated solutions to challenging marine problems – from assessment, design, and fabrication to full implementation in the field.

A privately held, multidisciplinary, marine services company founded in 1996, Substructure provides fully integrated underwater industrial services to a wide range of industries. Headquartered in Portsmouth, New Hampshire, Substructure serves commercial and government organizations along the Eastern seaboard, inland, and in a number of overseas locations.

Recognized for unparalleled technical expertise, highly sophisticated and customized equipment, exacting project management, and collaborative customer support, Substructure has become the gold standard for marine industrial services. Our experienced team of engineers, marine scientists, divers, data specialists, and licensed captains enjoy a reputation for completing complex marine projects on time and on budget.

  • Address Substructure, Inc.
    P.O. Box 4094
    Portsmouth, NH 03802
    phone: (888) 909-1039
    fax: (603) 431-1032

    Additional Satellite Office
    Jamestown, RI 02835
    phone: (401) 952-2333

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