The new office, located in Marylebone, has been opened to facilitate the further growth of Stoneweg’s activity globally, with Young and Martinelli both joining in business development roles to help source new capital while also bringing significant expertise to support existing investors and upgrade the firm’s client infrastructure.

Young, who joins as Head of business development, has over 20 years of investment management experience and most recently spent six years at Artemis where he was Head of Sales, playing an instrumental role in building the company’s international presence. Young will lead Stoneweg’s business development team, which includes experienced professionals in London, Switzerland and the Nordics.

Young said: 'This is a fantastic opportunity to join an ambitious team with a strong business proposition that is increasingly attracting institutional money and has an impressive growth trajectory. James Martinelli and I are looking forward to establishing the company’s presence in the UK and leveraging our experience to build the business further while supporting new and existing investors.'

Young previously held senior roles at Thames River Capital and Prudential Financial where he helped grow their pan-European business. He grew up in Switzerland and studied Business and Economics at University of St. Gallen, London School of Economics and Albert Ludwig University Freiburg.

Martinelli also joins from Artemis where he spent 14 years and was responsible for developing client relationships across Europe, having previously worked at Baring Asset Management and Merrill Lynch Investment Managers.

London is Stoneweg’s eighth office across seven different countries and will serve as an additional base as the company aims to attract new global mandates. Over the medium term Stoneweg will look to expand its operational presence in London, the firm said.

Stoneweg currently has over 40 active mandates and strategies across both equity and debt in Europe and the United States, including Spanish residential development, European real estate bridge financing, European diversified opportunities and Opportunistic strategies focused on Spain, Italy and Ireland. Its portfolio has a total value of €3 bn across Spain, Ireland, Switzerland, Italy and the United States.