Marine Design, Upgrade & Conversion

Longitude’s multi-disciplined team of naval architects, structural engineers, civil engineers as well as environmental engineering specialists, bring substantial experience in all forms of marine design, upgrades and conversions – consulting on the optimum solution for your asset and project, from minor modifications to new-build designs.

Cross-market sector operational knowledge

We bring a combination of technical design expertise, cross-market sector operational knowledge and a deep understanding of classification societies – enabling us to deliver fit-for-purpose designs.

Key Contacts

Group Director of Longitude

Exeter, Longitude

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Managing Director Maritime

Southampton, Longitude

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Managing Director, Longitude USA


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Lead Geotechnical Engineer

Newcastle, Longitude

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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…