William Gardner Thomson

Castlefield Investment Partners LLP (Castlefield) is the investment management subsidiary of Castlefield Partners Ltd. in Great Britain. Established in 2002, the firm is based in Manchester is a specialist investment manager for institutional investors, primarily charities and group pension schemes. The firm operates under the trading name Castlefield Investments and manages the Castlefield Premier family of funds.

Brewin Dolphin Ltd. (dba RBC Brewin Dolphin) is a wealth management firm headquartered in London, UK. The firm was founded in 1987 as Hill Osborne & Co. and was acquired by Brewin Dolphin Securities Ltd. in 2000. In 2008, they changed their name to Brewin Dolphin Ltd. In 2022, the firm was acquired by Brewin Dolphin Holdings Ltd., a subsidiary of Royal Bank of Canada (TSE: RY), and added RBC Brewin Dolphin as their trading name. RBC Brewin Dolphin offers personalized wealth management services from bespoke, discretionary investment management to retirement planning and tax-efficient investing. They serve affluent, high net worth and ultra-high net worth clients.