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Ashtead Technology

Focused on service excellence, leading international subsea equipment specialist Ashtead Technology offers rental equipment, calibration, repair and maintenance, offshore personnel and bespoke engineered solutions from three fully serviced offshore supply facilities located in Aberdeen, Houston and Singapore and via agents in Norway, Abu Dhabi and Australia.

Our fleet of state-of-the-art rental equipment is composed of a proven range of instruments representing the best in the industry. We carry one of the world’s largest fleet of Positioning, Geophysical and Metocean equipment, as well as a comprehensive range of ROV Sensors and Tooling, Diving, NDT and RVI equipment.

Whether you’re performing a survey on inland waters or mapping the deepwater canyons of the world’s oceans, Ashtead Technology have a wide range of hydrographic rental equipment available for your project.  We stock fully calibrated and maintained brand name equipment from quality manufacturers that are proven in the field.

All equipment is backed by 24 hour technical support and our team of offshore engineers are available to assist with your mobilisation or project worldwide, so you can count on our expertise whenever and wherever it’s required.

Our facilities offer specialised calibration laboratories, test tanks and maintenance workshops, manned by experienced, manufacturer trained engineers. At Ashtead Technology and through our agents, we specialise in local service with global resources, so whatever your subsea equipment requirements, we are sure to have a solution.

For further information, please go to or email


Ashtead House
AB32 6FG
+44 1224771888
+44 1224770129
SubseaTech CAT Surveyor ASV

CAT-Surveyor is a catamaran type drone (3m long), with tele-operated and automatic navigation modes, allowing hydrographic data acquisition and/or port/inland above and under water surveillance. With its open architecture and high-speed PC to PC communication the system permits easy integration and deployment of sensors such as video day/night cameras, side scan sonar, multibeam sonar, acoustic cameras, sediment sounders, magnetometers, physico-chemical sensors, etc.

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