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Brian Critchley

Director/Principal Geoscientist

Brian is the managing director of Geo-4D with over 30 years of industry experience, specialising in offshore and onshore geophysical data collection and processing, and as a consultant involved in the planning, management and implementation of onshore and offshore geophysical and geotechnical surveys. Prior to setting up Geo-4D, Brian’s geoscience-focussed career included gold exploration in Australia, treasure hunting in the Indian Ocean, offshore geophysical data collection around the world, desk-based geoscience consultancy and client repping.

Dave Harrison

Principal Geoscientist

Dave is a skilled consultant geoscientist, with over 14 years of experience in offshore and onshore geotechnics, geophysics, geohazards, sedimentology, geochronology, surveying, GIS and remote sensing. At Geo-4D, Dave largely focuses on the offshore geoconsultancy projects, utilising his multidisciplinary knowledge to develop engineering geological desk studies and predictive ground models, whilst also overseeing the technical aspects of the survey division of Geo-4D, providing guidance and training on the use of various drone payloads and cameras for mapping and surveying purposes.

Chris Brennan

Senior Geoscientist

Chris is a senior geoscientist at Geo-4D, who mostly focusses on the offshore consultancy projects, whilst also supporting the survey side of the business with drone flying and data processing. Prior to working at Geo-4D, Chris studied a BSc and MSc in Geoscience at Keele University before completing a PhD at Royal Holloway focusing on the impact of early salt tectonic processes on post-Permian basin evolution and Mesozoic petroleum systems in the southern North Sea.

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Will Wenban

Geoscientist

Will is a geoscientist at Geo-4D, working across a range of the company’s projects including offshore consultancy, terrestrial and marine surveying, data processing, and reporting. Will has experience acquiring, processing and interpreting a variety of geospatial and technical data, with a BSc in Physical Geography from the University of Southampton and an MRes and PhD in Glaciology from the University of Sheffield, which focused on the spatio-temporal dynamics of glacial erosion over the last glacial period. Will is still actively involved in glaciology research outside of his time as a geoscientist at Geo-4D, utilising techniques such as ground-penetrating radar, UAV, GPS and active seismic surveying on glaciers and ice caps.

Nick Edgington

Geoscientist

Nick is a geoscientist at Geo-4D, working on offshore consultancy projects, conducting onshore and offshore geophysical surveys and processing data. Nick's applies his mathematical background to cable burial risk assessments and probabilistic anchor strike risk assessment, and also developing effective workflows for acquisition , processing and interpretation of survey datasets including magnetometry, LiDAR and photogrammetry. Prior to working at Geo-4D, Nick graduated from Cardiff University with a BSc in Mathematics.

Deaglan Bayliss

Chief UAV Operator

Deaglan leads Geo-4D's drone operations, including tendering, risk assessments, development of workflows, maintaining our fleet of drones and leading survey operations. Deaglan is a drone enthusiast, and when not flying drones for work, he's often flying drones for fun, including racing FPV drones. Prior to joining Geo-4D,  Deaglan worked in TV production as a drone operator filming anything from car boots sales to land speed records for shows on Channel 4, ITV, and Discovery. His academic background is in biology with a degree from Plymouth University, for his final year project he created a computer model to analyse population dynamics.

Liam Cracknell

AI Developer

Liam initially joined Geo-4D as part of his work experience for his T Level in Digital Development at New College. Liam creates computer vision models through machine learning for automatic object detection.

Freddie Allen Stevens

AI Developer

Freddie, a Newcastle University graduate with a BSc in Accounting and Finance, designs AI models for Geo-4D, focussing on training and refinement of our synthetic CPT tool and drone imagery feature identification tool. 

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