Having worked with Greg on field development projects and geophysical instruction courses I have been greatly impressed by the infectious enthusiasm and motivational energy which he brings to his work, his broad scope of knowledge and his endless curiosity and ability to master complex topics. Greg has been a valuable and key member of every project on which I have worked with him and I have no hesitation in recommending him wholeheartedly.

Dr Cian O’Reilly, Project Geophysicist, Robertson CGG