Leigh has a BA (Hons) in ancient history and archaeology from Nottingham University, a post-graduate diploma in practical archaeology from Oxford University, department of Extramural Studies, and over 25 years of experience in professional archaeology.

Head of the finds department at OA South since 1989, Leigh manages the processing, cataloguing,  short-term curation, and deposition of all finds assemblages from all sites excavated by OA South. She liaises with project managers, specialists both internal and external, conservators and landowners to ensure the efficient, cost effective and secure progress of the finds from excavation through to deposition.

Leigh also produces assessment and publication reports on late medieval/post-medieval metalwork, worked bone (of all periods) and Roman ceramic building material.

Tim has directed and written up archaeological excavations for OA for over 30 years. His excavation projects include pipelines, road schemes, urban redevelopment, mineral extraction, housing, and work in modern cemeteries. The largest and most complex of these have been the Abingdon Vineyard Redevelopment, Eton Rowing Course, the A2 Pepperhill to Cobham Road Widening in Kent, and the Rocade Briochine at St Brieuc in Brittany. He has also directed research excavations and surveys built around public participation for the Earth Trust at Little Wittenham in Oxfordshire.

Tim acted as the Highways Agency’s Archaeological Advisor on the A13 Thames Gateway DBFO scheme and for the SW Framework Environmental Consultancy for proposed dualling schemes in Cornwall. He provided the Cultural Heritage contribution to the A2 Pepperhill to Cobham EIA. He has also been consultant to the Vale of White Horse District Council, Eton College, and several developers.

Tim is an experienced publicist of archaeology through open days, exhibitions, popular publications, web pages, public lectures and talks, promotional films, TV and radio. Tim has an MA and BA (Hons) in Classics from the University of Oxford, and is a Member of the Chartered Institute for Archaeologists (MCIfA) and a Fellow of the Society of Antiquaries of London (FSA).

Martyn has been a Senior Project Manager at OA since 2018. He manages the post-excavation of archaeological projects, bringing to conclusion the results of our fieldwork for clients, often to publication. Martyn specialises in the study of late Iron Age and Roman Britain, especially in the fields of rural settlement and agriculture, and he is an experienced zooarchaeologist (animal bone specialist). Martyn currently sits on the Britannia Editorial Committee for The Roman Society.

After gaining a BA (Hons) in Archaeology from the University of Winchester in 2004, Martyn went on to complete an MA in Osteoarchaeology at the University of Southampton in 2006, and then a PhD at the University of Nottingham in 2010. Before joining OA in 2017, Martyn worked for Historic England as a Research Assistant in Zooarchaeology and, between 2012 and 2016, was employed as a Post-Doctoral Research Fellow at the University of Reading.

Katrina has worked for Oxford Archaeology since 2004 and has over 15 years' experience in professional archaeology in the UK and abroad. As well as being OA South's Regional Manager, she also manages a portfolio of projects. She has a particular interest in early Roman Britain and the archaeology of World War II.

Katrina holds a PG Dip in Forensic Archaeology from Bournemouth University and an MA in Classical Studies from Victoria University of Wellington, New Zealand. She is an Associate of the Chartered Institute for Archaeologists (ACIfA).