Sonia Bouclainville
Foundation Manager
Bio
Sonia is the Foundation Manager in the Apax Foundation team. She joined Apax in 2025 and is currently based in London. Her previous experience includes MacAndrews & Forbes in New York, where she worked with the firm’s corporate foundation embedded within the private equity business. More recently, she worked at the Lightbulb Trust, a London-based family foundation focused on advancing social mobility in the UK. Sonia holds a Master’s Degree in Social Innovation and Entrepreneurship from LSE, and a Bachelor’s Degree in Psychology from Tufts University.
Sonia's Story
Sonia has worked in the non-profit sector for over 12 years, beginning as a literacy intervention coordinator in an under-resourced public school in Harlem. Witnessing poverty alongside extraordinary wealth in New York shaped her commitment to advancing social mobility through philanthropy. Inspired by her grandparents rebuilding their lives after war and her parents pursuing opportunity across the Atlantic, she believes philanthropy can expand life chances for others. Apax’s focus on social mobility and social entrepreneurs drew her to the firm as a place to help drive meaningful change.