StewartGravesStewart Graves
Managing Director

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

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Stewart is in charge of the directional strategy, financial and overall management of the company. He ensures the company’s health, safety, environmental and quality policies are adhered to.

For the last 30years he has been based equally in the United States and UK with global responsibilities. Stewart’s career has been in strategic and profit responsible positions in the manufacturing and process industries.

He has significant experience of growing businesses globally, organically and through acquisition, managed substantial capital investment projects, negotiated major contracts and sale of business’s achieving record breaking results.

Qualifications: BSc Mechanical Engineering with Economics, Dundee University.

MelLewisMel Lewis
Technical Director

Mel is responsible for the overall management of the technical department, project design and technical resources. 

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Mel is responsible for the overall management of the technical department, project design and technical resources.

He trained as an electronics apprentice at the Royal Aircraft Establishment prior to attaining a BEng degree in Electronics with Computing Science. He spent 23 years at MoD Boscombe Down in the test and evaluation of military aircraft, both for MoD and subsequently for QinetiQ, where he performed several key roles including Business Group Technical Manager and Head of Capability for electrical and avionics systems.
Qualifications: BEng Electronics with Computing Science. Member of the Institution of Engineering and Technology.

RitaBeardRita Beard
Health, Safety & Environment Officer

Rita is responsible for policies, procedures, inspections and assessments relating to Health, Safety and the Environment.

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Rita is responsible for developing effective policies and procedures, undertaking regular inspections and risk assessments, advising on protective clothing and equipment, training employees on safety issues, investigating accidents and recommending improvements in safety standards for all operations.
She has spent the last 12 months developing and implementing a robust Health and Safety Policy with a clear vision and plan on the objectives Mainstay wish to achieve.
Rita is responsible for ensuring Mainstay operate in a responsible manner and are compliant with all Environmental Legislation.

Qualifications : NEBOSH certificate in occupational Health and Safety, NEBOSH Certificate in Environmental Management.

NigelJohnsonNigel Johnson
Production Manager

Nigel is our Production Manager and is responsible for all aspects of Marine Services.

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Nigel is recognised within local industry as the face of the company for Marine Services. He is responsible for all aspects of Marine Services; including tendering of new business, scheduling of slipways and Production Manager of the team.

He has 36 years’ experience in the Marine and Energy Industry having started his career as an apprentice plater and welder. His experience ranges from construction of marine structures, jetty refurbishments, fabrication, installation of buoyancy tanks, dry dock gate maintenance and repair, ship repair and new build, fabrication of structural steelwork and pipework for oil, gas, petro-chemical, LNG and powerstation sites.

GavinSimsGavin Sims
Senior Naval Architect

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

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Gavin manages the design team, ensuring that all technical requirements of a project are achieved through the generation of production-ready information, and assisting in sea trails and inclining experiments.
From initial design stage Gavin incorporates hull form development, scantling/structure derivation, powering prediction, stability analysis, sea-keeping analysis, through to the creation of general arrangements and machinery arrangements in accordance with relevant flagstate regulations and classification society rules.

Qualifications: MEng in Ship Science with Yacht and Small Craft Design, Southampton University. Member of the Royal Institution of Naval Architects.

SimonChurchillSimon Churchill
Electrical Design Engineer

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

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Simon is in charge of all marine electrical and electronics activities, from undertaking the design engineering of systems to ensuring that the all technical requirements of the project are achieved.
Simon has over 35 years’ experience within an engineering environment, initially starting his career as an Air Engineering Mechanic with the Royal Navy, then a Marine Electronics Engineer and Radio Surveyor at Marconi Marine. He has spent the past 13 developing his skills at Mainstay which includes designing, installing, commissioning and maintaining electrical, navigation and communication systems.

Working towards IEng. Qualifications include British Marine Electrical Technician and Advanced Marine Electronics Installer.




KevinLewisKevin Lewis
Operations Director

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

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Kevin’s role is key to our business development, his in-depth knowledge and understanding of marine engineering is fundamental in developing solutions for our Customers. This is continued through to delivery with his overall responsibility over production.

With over 35 years’ experience in the marine engineering and boat building industry, he is an integral part of the business having successfully delivered a diverse range of standard and bespoke projects.

Originally trained and employed by the Royal Navy with subsequent Merchant Fleet experience his knowledge and expertise allow him to comprehend customer requirements and deliver practical, cost effective solutions to our clients.  As such, the company’s reputation is recognised within the industry as a business that delivers a customised high quality product.

Meurig Jenkins

Finance Director

Meurig is in control of the financial management of the company and project finance and accounting departments.

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Meurig is in control of the financial management of the company along with the management of project finance, accounting department, team and activities. 
As a senior professional with reporting, commercial and systems experience, Meurig has operated at both financial controller and finance director levels. He has diverse market and industry experience from a range of SME’s to larger multinational organisations and market sectors such as Defence, Automotive, Medical, TV, Construction and Maritime.

Qualifications: BSc (Hons) UWIST Cardiff. Associate Chartered Accountant.

Vaughan (2)Vaughan Griffiths
Operations Manager

Vaughan is responsible for motivating and developing production staff so as they achieve optimum  results.

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Vaughan is responsible for motivating and developing production staff so as they achieve optimum performance . He ensures projects are properly resourced and delivered to the specified quality level, on time and within budget. He is in charge of driving the company towards a culture of continuous improvement through developing and introducing LEAN/6 Sigma initiatives whilst at the same time maintaining awareness of contemporary production methods.

He has a depth of experience managing complex engineering projects, including the specification and installation of major capital investments.

BSC Mechanical Engineering, Glamorgan University

JonLewisJonathan Lewis
Senior Project Engineer

Jonathan is responsible for the overall management of a project, ensuring that all project objectives and budgets are met.

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Jonathan is responsible for the overall management of a project, 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.

CharlotteMorgan2Charlotte Wood
Business Development Manager

Charlotte is responsible for the development of the commercial activities of Mainstay Marine Limited.

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Charlotte manages the development of the commercial activities of Mainstay Marine Limited. She undertakes market and competitor research, produces key account development plans, co-ordinates and manages improvement ideas and plans and encourages business retention through pro-active phone and email correspondence.
She is also responsible for enhancing the company’s profile within the community with effective PR activities and is responsible for promoting Mainstay Marine’s website and other social media channels.
Qualifications: BA (hons) Geography. CMI Level 4 qualification in Management and Leadership. HABC Trainer the Trainer Level 2.

DaveWardDave Ward
Procurement Manager

David is in overall control of the company’s purchasing function as well as suppliers and sub-contractors.

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David is in overall control of the company’s purchasing function, suppliers and sub-contractors, ensuring that orders are placed taking into account the overall project programme and purchasing lead times and ensuring that materials and equipment purchased for the project are delivered within deadlines and meet the required standards.

He has 35 years’ experience developed in sales and purchasing for the oil and gas industry and then later with Mainstay Marine.