Mark was born in 1970 and raised in Kimbolton near Huntingdon. He was educated at Kimbolton School and on leaving spent a gap year Commission in the Army based in Hong Kong with the Queens Gurkha Engineers. He then went on to read Business Studies at Buckingham University and completed an MBA at Exeter University, before returning to help run the family business, Kimbolton Fireworks.
During this period, Mark transferred his commission to the Territorial Army in 1990 and during 28 years military service has commanded a Royal Engineer Bomb Disposal Squadron and deployed on operational service to Kosovo, Bosnia and Afghanistan. Awarded the Territorial Decoration in 2002, Mark received his second long service medal, the VRSM in 2011 and Bar in 2016. He continues to serve as a Lieutenant Colonel in the Royal Engineers and is currently a Member of the Royal College of Defence Studies.
Mark's political career started as a local councillor in Huntingdon before becoming the first pyrotechnician to be elected to the House of Commons in 2005. After holding posts as Opposition Whip, Shadow Minister in the Department for International Development and Lord Commissioner of the Her Majesty's Treasury, Mark was appointed Parliamentary Under Secretary of State for Defence Personnel and Veterans following the 2015 General Election. In the most recent General Election in June 2017 Mark was appointed to the position of Minister of State for Armed Forces.
He is married to Caroline Dinenage MP.