Rental Equipment

J+S has a range of equipment available to rent for on and offshore purposes. If we do not have required items in our own stock, we have identified and work with selected vendors and partners in order to provide timely solutions.


J+S have a range of stock downlines available that can be terminated with client specific connections for offshore use. Our trained technicians will prepare and deliver these downlines on fully certified Reeler units and provide support offshore for deployment and testing.

We also have a range of ancillary equipment to go with our downlines including but not limited to:


J+S have a range of electrical connectors and hydraulic couplers available to rent for on and offshore purposes. Our trained technicians can prepare and certify equipment for use as test connectors, interface components for FAT’s, long term protective caps and end caps with wired loop properties.


J+S have a range of test equipment available to rent for on and offshore purposes. All our test equipment comes with valid calibration certificates and our trained technicians are available to provide operating and analysis support. We have identified and work with selected vendors and partners to provide additional specialist test equipment if required.

Our test equipment capabilities include but are not limited to:


J+S is developing a range of monitoring equipment to provide our clients with solutions to identify subsea issues. This range of basic tools are designed to assist intervention operations by providing immediate and local display of sensor outputs or basic system parameters. This range is adaptable to allow connection to any system and standard port interfaces enable the option of penetrators to cable or oil filled hose assemblies either side for ease of installation. This range can also be expanded to meet any new requirements identified.

Display 420

The Display 420 is a basic display which provides local indication of a 4-20mA signal. Designed for installation and retrieval by diver, the display is loop powered so there is no need to provide a separate power supply or battery.

Display Specification

Display VA

The Display VA is a subsea In-line Voltage & Current display. This will provide a local indication of Voltage and Current. The unit can also be installed directly onto the end of a test downline enabling Divers to see directly whether the line is powered during intervention operations.

Simulator 420

The Simulator 420 utilises the same simple 0-100% display but with the addition of a loop powered 4-20mA simulator and rotary switch. This is designed to be connected between the Subsea Control Module (SCM) and the sensor. It is then used to either display the output signal from the sensor output or inject a set range of simulation signals to test the SCM’s operation.

Simulator Specification:

Data 420 / DataCAN

The Data420 or DataCAN are subsea In-line data loggers that include a retrievable data memory module recording 4-20mA or CANBus data. This unit can be left connected in-line and the memory module retrieved and replaced when required.

Contact Us

Enquiry Form
Phil Reid Managing Director >>
Phil has worked in the oil and gas 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 will oversee the day to day operations and grow the business both in the UK and globally.
James Morris – Engineering Director
James joined the Royal Navy from school where he successfully completed a 5-year Marine Engineering Apprenticeship. After 10 years’ service he started a career in hydraulic systems design, manufacture and project management.
After 5 years working in the hydraulic service industry James moved to Kvaerner Oilfield Products as a Support Engineer providing engineering support for production and service teams within the controls group. He was also responsible for the design, manufacture and offshore operation of the Control System Well Monitoring Equipment for Shell assets used during well intervention testing.
Whilst at KOP he completed an Open University Postgraduate Diploma home study course in Manufacturing: Management and Technology
He subsequently moved to RRC Controls Services where he was solely responsible for all the mechanical and hydraulic design of the company’s successful diver installable Subsea Control Module. Over 10 years at RRC he designed and built a range of bespoke subsea equipment from electrical and hydraulic Subsea Distribution Assemblies to Chemical Injection Flowmeter housings.
On moving to J+S Ltd as a Senior Engineer James continued to be responsible for design of subsea and renewables equipment including a new design ROV installable Subsea Control Module and next generation Medium Voltage dry-mate connection systems. During his 10-year tenure at J+S Ltd and SEA James has been promoted to Principal Engineer and then to Engineering Manager.
James has a wealth of knowledge in Project Management and design processes, using Solidworks 3D and document management software to produce highly configurable product designs in very short timescales.
As Engineering Director at J&S Subsea Limited, James looks forward to developing the engineering capabilities of the business, providing innovative designs, high quality products and responsive service to the Subsea Energy Industries.
Simon Smith – Business Development Director
Simon has worked in the oil and gas sector for over 20 years. He started his career as a planning co-ordinator for offshore development systems and has since been involved in both surface and subsea operation management both locally and overseas with Wood Group, Plexus Ocean Systems and Cameron’s before joining J+S Ltd in 2012 as a Senior Account Engineer. J+S Ltd then became part of SEA Ltd and the Cohort Group where Simon was promoted to Business Development Manager in 2019 before taking part in the management buyout of the Aberdeen based subsea division of SEA to form J&S Subsea Limited.
Simon initially studied Electronic and Electrical Engineering at Edinburgh University and later Engineering Design at The Robert Gordon University and recently became a Certified Project Management Associate through APM. Simon has experience with on and offshore support along with efficiency and safety control and has utilised this to deliver large scale projects for international clients in the energy industries.
As part of J&S Subsea limited, Simon plans to help grow the Subsea Energy business both in the UK and globally while championing a circular economy focus to help provide a better future.
Simon Smith
Matthew Blair – Executive Chairman
Matt has worked with SEA and previously J+S Ltd for over 10 years and has a wealth of industry knowledge and expertise. Matt works closely with Oil company subsea engineering and production controls departments, supporting their operational assets
Matt worked with Ferranti Computer Systems Ltd in the naval simulation group and through his extensive experience in electronics and sonar, moved into hydrographic survey working with Subsea7, Tritech, and CDL before joining J+S Ltd.

Matt has lead the management buyout of the Subsea Engineering division of SEA for J&S Subsea Limited and is seeking opportunities to transfer technologies and products into the Oil and Gas and marine renewables markets.