Substructure, Inc.

P.O. Box 4094

Portsmouth, NH 03802

603-436-1039 / 603-431-1032

Substructure, Inc. provides near shore and coastal underwater industrial services to commercial and government organizations. Our underwater capabilities include ultra-high resolution hydrographic surveying and mapping (including highly accurate and repeatable multibeam seafloor characterizations), epoxy marine pile encapsulation, and corrosion control for structures and vessels. In addition, we offer commercial diving, marine design and fabrication, ship husbandry and salvage, and archeological search services. We are recognized for unparalleled technical expertise, highly sophisticated and customized equipment, exacting project management, and collaborative customer support.