About us Who we are Staff Birgitta Clift Trust Fundraising Manager Birgitta joined Leukaemia UK at the end of 2017 and has worked in the charity sector for over 25 years in grant-making and trust fundraising for both national and local charities. Birgitta job shares the role of Trust Fundraising Manager with Samantha, with a focus on collaborating with trusts to support the bold new charity strategy launched in 2022 to invest in positively life-changing leukaemia research.