Working in the subsea environment​

With years of experience working in the subsea controls sector, we understand customer drivers and priorities. Our specialist team focus on delivering competitive and timely engineering solutions.

Delivering competitive, timely -engineered solutions​

The culture at J+S Subsea is based on collaboration and communication with clients and it is essential for delivering competitive, timely-engineered solutions. J+S Subsea is leading the way in the Oil & Gas industry through our Legacy Locker service to optimise the value of existing, unwanted capital equipment and utilising a circular economy approach to business.

Marine Renewables

J+S Subsea is committed to adjusting economic, social and environmental behaviours to build a resourceful and sustainable future. By applying our knowledge and experience in power and signal cable applications, we can work towards this along side our clients. We have also developed a business in Marine Renewables.

We are delighted to have had an article published in the May edition of the Subsea UK magazine. We talk about how as a company we are working towards Net Zero and our latest Legacy Locker win. This work earned us a spot as finalists in the Excellence in Collaboration awards at Decom Week 21

News & Events

J+S Subsea invests in new state-of-the-art testing facility to support future growth

J+S Subsea has further strengthened its engineering capabilities with the launch of a new state-of-the-art testing facility at its Aberdeen headquarters, following an investment of almost £140,000.

Supported by Energy Transition Zone Ltd (ETZ) through its Challenge Fund, the new facility features two dedicated test bays rated to 30,000 psi, significantly enhancing the company’s ability to manufacture, test and validate advanced electrical and hydraulic connection systems for offshore applications.

The investment marks another important milestone for J+S Subsea as the company continues to broaden its capabilities across the offshore energy sector. The purpose-built test cell will support projects within traditional oil & gas, while also creating new opportunities in marine renewables, carbon capture and storage (CCS), decommissioning and late-life asset support.

Designed to rigorously test electrical and hydraulic connection technology, the new facility will help ensure the safe, efficient and reliable transmission of power in demanding subsea environments, providing clients with greater confidence in the performance of critical subsea equipment.

The investment also builds on J+S Subsea’s move to significantly larger premises in Dyce during 2024 and reflects the company’s continued commitment to investing in its people, facilities and engineering capabilities to support long-term, sustainable growth.

Phil Reid, Managing Director of J+S Subsea, said:

“This latest investment marks another important step forward for our business. With the support of ETZ Ltd and our move to significantly larger premises in late 2024, we are working towards long-term, sustainable growth.

By enhancing our portfolio in this way, we are positioning ourselves to capitalise on new opportunities, using expertise gained in traditional markets to target new opportunities including in the renewables sector.”

Neil Young, Deputy Chief Executive of ETZ Ltd, added:

“J+S Subsea is a great example of the world-class supply chain capability we have here in the North East of Scotland. Through the ETZ Ltd Challenge Fund, we are helping ambitious companies invest in innovation and new capabilities that enable them to diversify, accelerate market entry and support business growth. We were delighted to support this project and see investment in the new testing facility.”

The new testing facility further strengthens J+S Subsea’s ability to support clients with innovative subsea control system solutions and provides additional capacity to support future growth across the evolving offshore energy sector.

Find out how J+S Subsea supports subsea control systems, testing and engineering projects across the offshore energy sector.

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Mark Patterson Non-Executive Chair

Mark Patterson

Non-Executive Chair

Mark’s career spans five decades, marked by entrepreneurial success and visionary leadership across various sectors, including offshore marine technology, subsea oil and gas, green energy storage, and more.

With a track record of leading businesses through start-up, growth, acquisitions, and transformations, Mark’s expertise lies in strategic decision-making, mentoring, and brand management.

He has overseen multimillion-pound projects, pioneered new technologies, and guided companies to international recognition, such as the underwater GPS NASNet®.

His leadership style is direct, inclusive, and based on trust, empowering teams to excel.

Mark’s achievements include managing high-profile global companies, such as Balmoral group, Nautronix and Well-Safe Solutions, where he played key roles in groundbreaking projects. Global explanation and high growth.

Outside of business, Mark is deeply committed to family and charity work, with a passion for shooting, boating, and car collecting. As an experienced executive, he remains dedicated to fostering success by identifying future opportunities and mentoring the next generation of leaders.

Mark Patterson Non-Executive Chair

Mark Patterson

Non-Executive Chair

Mark’s career spans five decades, marked by entrepreneurial success and visionary leadership across various sectors, including offshore marine technology, subsea oil and gas, green energy storage, and more.

With a track record of leading businesses through start-up, growth, acquisitions, and transformations, Mark’s expertise lies in strategic decision-making, mentoring, and brand management.

He has overseen multimillion-pound projects, pioneered new technologies, and guided companies to international recognition, such as the underwater GPS NASNet®.

His leadership style is direct, inclusive, and based on trust, empowering teams to excel.

Mark’s achievements include managing high-profile global companies, such as Balmoral group, Nautronix and Well-Safe Solutions, where he played key roles in groundbreaking projects. Global explanation and high growth.

Outside of business, Mark is deeply committed to family and charity work, with a passion for shooting, boating, and car collecting. As an experienced executive, he remains dedicated to fostering success by identifying future opportunities and mentoring the next generation of leaders.

Phil Reid Managing Director J+S-Subsea

Phil Reid

Managing Director

Phil has worked in the energy industry for over 25 years. He started his career with Kvaerner FSSL progressing through a variety of roles in subsea engineering, from manufacturing to leading some of their most complex projects all over the world. He worked with the original J+S for a period before moving on to Genesis Oil and Gas as a Subsea Controls Engineering consultant; during that period, he was seconded to Centrica Energy (now Spirit Energy) which led to a permanent role as Lead Subsea Controls & Umbilical Engineer for Developments, Capital Projects and Operated Assets. For almost a decade Phil successfully delivered Capital Projects from concept right through to project close out whilst also looking after the running of their subsea assets.

As part of J&S Subsea limited, Phil oversees the day-to-day operations and will grow the business both in the UK and globally. 

James Morris

Engineering Director

James’s career started when he joined the Royal Navy from school as an Artificer Apprentice. After a 5-year Marine Engineering Apprenticeship he served in surface ships HMS Glamorgan, HMS Edinburgh, and HMS Glasgow and at Rosyth as part of an engineering support team. 

Moving into the Energy Industry in 1992, over the next 26 years he gained a wealth of experience within large and small companies on operation, design and project management of subsea control systems and equipment. This period started with several years as a Project Engineer for a family run hydraulic services company Grampian Hydraulics followed by 5 years as a Support Engineer at Kvaerner Oilfield Products.  James joined RRC Controls Services ltd in 2001 before finally moving to J+S Ltd in 2010. At J+S his dedication and technical capabilities were rewarded with several promotions until becoming a member of the management buyout team. 

He has designed an extensive array of subsea equipment from basic cable penetrators to complete subsea control modules. 

James thrives on providing solutions for client’s problems. 

As Engineering Director, James will ensure that the company provides clients with timely, cost effective and technically sound solutions and services. 

Matthew Blair

Executive Chairman

Matt Blair is Executive Chairman of J+S Subsea which was formed in October 2020 through a management buyout of the Subsea Engineering Division of Systems Engineering and Assessment Ltd.

With J+S Subsea and SEA for over 14 years, Matt has a wealth of industry knowledge and expertise.

Previously an Electronics Engineer with Ferranti Computer Systems Ltd specializing in sonar and submarine command systems, Matt moved into hydrographic survey working with Subsea7, Tritech, and CDL before joining J+S Subsea.

He was Vice Chair of the Decom Leadership Group of Decommission and in that role, he facilitated industry and academic studies on potential for reuse and repurposing of decommissioned equipment. He is still actively involved with the reuse agenda through Decommission and OEUK.

Although not part of day-to-day operations, Matt stays close to company strategic matters and is seeking further opportunities to update and transfer Energy technologies and products into the Marine Renewables markets and help to develop the broader circular economy.