The late Ken Fleming PhD CEng MICE was Chief Engineer at Cementation Foundation Skanska in Rickmansworth, UK.

Austin Weltman MSc DIC MIMM FGS is Geotechnical Director at Tony Gee and Partners LLP in Birmingham, UK.

Mark Randolph MA PhD FAA FTSE FREng FIEAust CPEng is Professor of Civil Engineering at the University of Western Australia and Director of Advanced Geomechanics in Perth, Australia.

Keith Elson PhD CEng MICE is a consulting geotechnical engineer in Sussex, UK.