StewartGravesStewart Graves

Managing Director

Stewart is accountable for the directional strategy, governance and overall management of the company.



MelLewisMel Lewis

Business Logistics Director

Mel is responsible for the overall management of the technical and sales department.

DD: 01646 407893


NigelJohnsonNigel Johnson
Site Director

Nigel is responsible for all aspects of Marine Services including maintenance, refitting and repairing.

DD: 01646 407888  


Rita Beard
SHEQ & HR Manager

Rita is responsible for everything relating to Safety, Heath, Quality & Environment.

DD: 01646 407898


SimonChurchillSimon Churchill

Electrical Design Engineer

Simon is in charge of marine electrical/electronics activities, ensuring technical requirements are achieved.

DD: 01646 407890

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Kevin Lewis

General Manager Director

Kevin is responsible for the production of all projects, including new project enquiries.

DD: 01646 407881  


Charlotte Wood
Business Development and Sales Manager

Charlotte is responsible for the development of the marketing and commercial activities of Mainstay Marine. 
DD: 01646 404922


GavinSimsGavin Sims

Technical Manager & Senior Naval Architect

Gavin manages the design team, ensuring that all technical requirements of a project are achieved.

DD:  01646 407886


JonLewisJonathan Lewis
Production Manager

Jonathan is responsible for the overall management of the production team. 

DD: 01646 407894

Full profile

Jonathan is responsible for the overall management of  the production team, ensuring that all project requirements, objectives, programmes, and budgets are met through preparing and maintaining the project plan and allocation of resources.

He started his career as an apprentice boat builder with Fishguard Marine, he has spent the last 28 years developing his role at Mainstay Marine through being involved in the successful delivery of numerous vessels. In this time he has have gained invaluable experience and expertise in all aspects of boat building systems, engineering, fabrication and operation of vessels.