Dominic Johnson, Baron Johnson of Lainston

Dominic Johnson, Baron Johnson of Lainston
Born	(1974-04-06) April 6, 1974 London, England
Occupation(s)	Financier, hedge fund executive, politician
Years active	1995–present
Known for	Co-founder and CEO of Somerset Capital Management; Co-chairman of the Conservative Party (Nov 2024–Jul 2025)

Dominic Robert Andrew Johnson, Baron Johnson of Lainston, born on 6 April 1974, is a British financier, hedge fund executive, and political figure. He is the co-founder and current CEO of Somerset Capital Management. From November 2024 until July 2025, Johnson held the position of co-chairman of the Conservative Party alongside Nigel Huddleston.

During Liz Truss’s tenure as Prime Minister, he occupied ministerial posts within the Department for Business and Trade and the Department for International Trade under Rishi Sunak’s administration. Having contributed more than £250,000 to the Conservative Party, Johnson also served as its vice-chairman between 2016 and 2019.

Early life

Born in London in 1974, Johnson is the son of Patrick Johnson and Juliet Elizabeth, whose father was Lt Andrew John Craig-Harvey of the 5th Royal Inniskilling Dragoon Guards. The family home was Lainston House in Sparsholt near Winchester, Hampshire. On his maternal side, Juliet’s mother Mary descended from Royal Navy Captain Robert Bradshaw Wilmot Sitwell, CBE, and further back from Conservative politicians Charles Cocks, 1st Baron Somers, and Sir Armine Wodehouse, 5th Baronet. His maternal uncle Nicholas Craig-Harvey is married to Lady Julia, daughter of Hugh Percy, 10th Duke of Northumberland.

Tragically, when Johnson was six months old, his mother fatally stabbed his father following a dispute; Patrick Johnson passed away two days later at age thirty-one. Found guilty of manslaughter due to diminished responsibility, his mother was committed to Rooksdown Hospital in Hampshire before eventually being released and remarrying. Subsequently, Johnson and his sister were brought up by their maternal grandparents.

He attended Marlborough College prior to studying Politics at Collingwood College, Durham University, where he earned a BA degree in 1995.

Career

Johnson embarked on his financial career at Robert Fleming & Co. in 1995 and moved to Jardine Fleming in Hong Kong in 1998. Between 2001 and 2007, he worked within asset management at Lloyd George Management. In 2007, together with Sir Jacob Rees-Mogg and Edward Robertson—his former colleagues from Lloyd George Management—he co-established Somerset Capital Management (SCM). Rees-Mogg initially served as SCM’s CEO until Johnson took over the role in 2010.

By September 2022, Somerset Capital Management oversaw approximately $5 billion in assets and was being put on the market as Johnson prepared to pursue a political career. Robert Diggle, the chief operating officer at that time, was slated to replace him as CEO. Prior to announcing the sale, the firm experienced a 34% decrease in annual profits.

Politics

Between 2006 and 2010, Johnson acted as a Conservative councillor for the Royal Borough of Kensington and Chelsea.

Following David Cameron’s resignation as Prime Minister in 2016, Johnson lent Cameron his Chelsea residence valued at £2,650 per week—a benefit Cameron declared exceeding £37,000. Having donated over £250,000 to the Conservative Party, Johnson also held the vice-chairmanship from 2016 until 2019. In recognition of his political contributions, he was appointed a Commander of the Order of the British Empire (CBE) during the 2017 New Year Honours.

On 2 October 2022, under Prime Minister Liz Truss, Johnson was appointed Minister of State within the Cabinet Office as well as Minister of State for Investment at the Department for International Trade. To assume these responsibilities, he was ennobled as a Life Peer on 19 October 2022 with the title Baron Johnson of Lainston, named after his maternal family’s estate near Winchester—now operating as a hotel. After being dismissed by Truss’s successor Rishi Sunak, he was reinstated as Minister of State for International Trade on 24 November 2022.

In 2024, Johnson voiced support for broadening Infosys’s operations within the United Kingdom and expressed readiness to assist this expansion.

Personal life

In 2006, Johnson wed Alice Rose Alethea Hamilton (born 1974), the youngest child of Archibald Hamilton, Baron Hamilton of Epsom, who previously served as a Conservative government minister.