L123 Plans, Permits, and Performs Marine and
Underwater Projects in California
L123 has a Reputation for Delivering
Excellence
L123 knows Underwater Construction and Environmental Permitting
L123 is a Leader in Producing Feasible and Economical
Marine-Related Decommissioning Projects in California
L123 Minimizes Our Clients Risk Exposure and Reduces Project Costs
L123 Serves as a Trusted Partner in all Aspects of Marine Project Management
Longitude 123, Inc. (L123) is a design-build general engineering marine contractor team providing owners and operators of California marine facilities with a one-stop shop for turnkey design, permitting and construction of marine and underwater facilities.
Our experience and understanding of the processes required to successfully plan, permit and perform marine and underwater projects in tough regulatory environments has time and again proven to minimize our client’s risk exposure and reduce project costs.