Sonny Leong, Baron Leong

Leong co-founded Cavendish Publishing in 1990.^[2] The company made £250,000 in its first year.^[2]

In 2001, he was appointed managing director of Cavendish Publishing, with a 30-percent stake in the company.^[3] By 2003, it was the largest independent law publisher in the United Kingdom.^[2]

In 2006, Leong sold Cavendish Publishing to Taylor & Francis.^[4] He left Taylor & Francis in 2007 to join One Charter, a private jet business, as a non-executive director.^[4]

Leong stood unsuccessfully for Labour in the 2015 Vale of White Horse District Council election, in the Blewbury & Harwell ward, finishing fourth of seven candidates with 12.73% of the vote.^[5]

Formerly the Chair of Chinese for Labour,^[6][7] in October 2022, it was announced that he would receive a life peerage in the 2022 Special Honours.^[8] On 31 October 2022, he was created Baron Leong, of Chilton in the County of Oxfordshire and of Camden Town in the London Borough of Camden.^[9][10] He was made a Government Whip in the Lord's in July 2024.^[11]

He is a member of the Fabian Society.^[12]

Leong and his wife, Gita, have a daughter, Sonya.^[13] He was appointed a Commander of the Order of the British Empire (CBE) in the 2014 Birthday Honours for political service.^[14]