Theresa May visited the Clare Foundations first 'in person' Charity Leaders Conference at the Oculus at gatehouse Aylesbury.
May was the closing speaker at the event, sharing her experience with the charity.
Over 100 people attended the event, which was supported by Bucks Council.
Speakers included Craig Goldblatt, Gareth Williams, Caron Bradshaw, Angela Macpherson, Steve Bowels, Kate Capocci, James Boycott, Sherry Peck and Nathan Gamester.