Longitude Engineering

International specialist in design and engineering services across the marine industry: Renewables, Oil & Gas, Defence, Commercial Marine and Infrastructure, since 2006.

About Us

OSD-IMT: Vessel Design

Experts in ship design, with particular expertise in newbuild construction, offshore support and supply vessels, dredging vessels, marine survey vessels, and clean shipping solutions.

OSD-IMT: Vessel Design


Longitude is actively involved in the rapidly developing renewables' sector, with significant project experience in offshore wind across Europe, North America and Asia.

Renewable Services

Oil & Gas

Longitude supports a wide array of offshore oil & gas projects, providing specialist design and engineering services from concept to execution and construction, including through life support for all types of asset.

Oil & Gas Services


Longitude delivers expert design, oversight and project management services to the defence sector across the world.


Commercial Maritime

Longitude has significant experience in small craft design, naval architecture, structural engineering, and comprehensive technical support services.

Commercial Maritime


Longitude has provided engineering for the design, fabrication, and shipping of modular equipment for numerous LNG plants, on-shore refineries and port facilities as well as consulting services for coastal engineering


Since 2006, Longitude Engineering has delivered specialist design and engineering services in the marine, energy and defence markets. Our independence, expertise and experience make us the natural choice for a wide range of design solutions across Asia Pacific, Europe and North America.

We take a holistic view of marine engineering and design, from the overall concept through to the smallest detail: rather than simply focusing on a craft or platform, we’re dedicated to helping your marine design project succeed. This client-focused perspective, combined with our agile responsiveness and ability to adapt the way we work to suit you, is what makes Longitude unique.

Contact Longitude today to discuss your project.


Trusted advisor driving the energy transition in shipping and offshore energy sectors


World-class expertise in engineering and design disciplines


Independence to innovate and expand where clients need us


Offices located in key shipping and energy hubs worldwide, with a strategy to expand into new markets


Strong track record of developing technologies for sustainable energy and shipping practices


Highly responsive team with on-the-ground expertise where needed
Offices map

Longitude’s offices are located across our core markets: Europe, AsiaPacific and The Americas.

We also deliver engineering expertise and market sector knowledge through our sister companies: ABL Group, Innosea, OWC, East Point Geo, ABL Yachts and JLA, located globally and can call on their support in projects when appropriate.

OSD-IMT - the ship design experts are included in our Longitude team, adding office in UK port towns, Bideford and Dundee.

Our Offices About Us

Case Studies View All

Longitude Completes Engineering Base Scope on FPSO Conversion

Longitude Engineering has completed its engineering base scope for Yinson’s vessel conversion of an FPSO destined for Brazil, including naval architecture, structural engineering and hydrodynamic analysis. “The FPSO…

OSD-IMT9721 Salvage Vessel

Principle Characteristics LOA: 79.40 m Beam: 16.00 m Depth: 7.30 m Summer Load Draught: 5.80 m Deadweight: 2000 t approx

Hybrid Standby Safety Vessel OSD-IMT951

Principle Characteristics L.O.A.: 50.70 m L.B.P.: 47.40 m Breadth mld.: 13.00 m Depth: 6.00…

NewsView All

Longitude wins deep-sea engineering on Egypt’s Burullus

Independent engineering consultancy Longitude Engineering has been awarded a contract to provide detailed design & engineering services for the subsea development of Phase-X at Egypt’s West Delta Deep…

Longitude Engineering to design newbuild eSOV

Engineering consultancy and ship design experts Longitude Engineering have been selected to support a consortium led by vessel owner and operator Bibby Marine for the design of…

Meet the team: Riccardo Gnocchi

The team at ABL Group shares the passion, vision and values for working in energy and the world’s oceans, de-risking and driving the energy transition. We are…