The JK EW Consultancy exists to provide consultancy support in non-communications Electronic Warfare (EW) to the UK MOD and defence ministries of NATO countries, to defence elements outside the UK and NATO not proscribed by Her Majesty's Government (HMG), and to defence industries in the UK and NATO.

Julian Grenfell has 30 years experience in EW ranging from operational military aviation, EW engineering, programme management, airborne test programmes, and EW training. Julian Grenfell is a chartered mathematician, a fully qualified (DFES) trainer, a Member of the Institute of Mathematics and its Applications (MIMA), a Chartered Scientist, a member of The Institute of Electrical Engineers, a member of the armed forces Communications Association (AFCEA) and a member of the Association of Old Crows (AOC).