About Impact Subsea

Impact Subsea designs, manufactures and supports a range of high-performance sensor solutions for underwater vehicles and associated applications.

The company offers a portfolio of underwater technology encompassing Sonars; Altimeters; Depth Sensors; Attitude & Heading Reference Systems; Flooded Member Detection Systems and bespoke Pressure Housings.

Impact Subsea’s products are designed for use on underwater vehicles (such as Remotely Operated and Autonomous Vehicles) and can also be used in a number of other underwater applications.

The company’s sensor solutions are used in the Oil and Gas, Renewables, Underwater Research and Defence sectors.

Impact Subsea operates a UKAS certified ISO 9001:2015 quality management system and is a proud member of Subsea UK – the UK subsea industry body.

Impact Subsea Office

Impact Subsea Head Office

Impact Subsea Production Facility

Impact Subsea Production Facility

Company Details


Registered Office: Unit 10, Castle Street,
Castle Road Industrial Estate,
Ellon, Aberdeenshire,
AB41 9RF,
United Kingdom
Place of Registration: Scotland
Company Registration Number: SC498003
VAT Number: GB 207 8612 10




Ben Grant
Ben GrantManaging Director
Ben started his engineering career with a Masters degree in Electronic and Electrical Engineering from the Robert Gordon University, Aberdeen. From here he entered the telecommunications industry before moving into the exciting world of underwater technology.

His underwater engineering work started as a support engineer for a sonar, video and mechanical products manufacturer. Building on this experience working closely with both equipment users and development teams, his role developed to manage the long term development of specific underwater product lines.

After a number of years, keen to diversify and build on his knowledge of underwater technology, Ben moved to an organisation specialising in hydro-acoustic telemetry and positioning systems. Here he managed the overall technology road map of the organisation.

At the start of 2015, keen to develop a new generation of underwater sensors and systems, Ben teamed with Alastair to create Impact Subsea.

Alastair Mclennan-Murray
Alastair Mclennan-MurrayTechnical Director
Alastair stared his engineering career with a Bachelors degree in Artificial Intelligence and Robotics from the Robert Gordon University, Aberdeen.

Following his degree he commenced work as a development engineer, working for an underwater echo sounder, sonar and sensor system manufacturer.

After several years, keen to further increase his experience and knowledge, Alastair moved to an organisation specialising in underwater heading, control and communications systems. Here he continued to build his knowledge and understanding of product design, software, hardware and firmware creation.

At the start of 2015, following a decade of working for competing companies, Alastair teamed with Ben to create a new generation of underwater sensors and systems with Impact Subsea.