Marc Overton

Overton joined 35th (South Midlands) Signal Regiment as a private soldier in 1987^[1] and was commissioned into the London Regiment on 6 October 1989.^[2] Following a tour as Head of Reserves Strategy in Army Headquarters,^[3] he was appointed Assistant Chief of the Defence Staff (Reserves and Cadets) in June 2022.^[4]

Overton was appointed a Companion of the Order of the Bath (CB) in the 2025 New Year Honours.^[5]

After working in several roles at Cisco Jasper, Overton became Chief Solutions Officer and Senior Vice President for EMEA and APAC at Sierra Wireless in 2017,^[6] managing director of BT Group's "Division X", part of its Enterprise business, in 2022,^[7] Euronorth managing director at Dassault Systèmes in 2023^[8] and Managing Director at Roke Manor Research in 2025.^[9] He held the position of a non-executive director for Defence Equipment and Support from 2023 to 2025.^[1]

Overton was appointed a deputy lieutenant for Greater London in February 2022.^[10]