In addition, the Group has proprietary interests in the British company Spirent plc, listed on the London and New York Stock Exchanges, and in Nordstjernan, which in turn has major interests in other companies, including the listed company NCC.
Simon Peter St. John Bowthorpe was born in 1964 in London, the grandson of industrialist Jack Bowthorpe, CBE, founder of what is now Spirent PLC.