Build a charity
that changes
the world.
Mentorship and consulting for purpose-driven founders building charities that reach the world’s most underserved communities.
Mentorship and consulting for purpose-driven founders building charities that reach the world’s most underserved communities.
Biyi Adewumi, CEO · Precious Sight Foundation
On 2nd July 2013, Biyi Adewumi woke up completely blind. Not “couldn’t see well” but fully, suddenly blind. Overnight, she went from a full, active life to being house-bound, unable to care for herself, and dependent on those around her for even the most basic things. For nine months she waited, prayed, and held on.
After a corneal transplant restored her sight, Biyi didn’t simply move on. She moved outward. She founded Precious Sight Foundation on a conviction that became her mission: no one should lose their sight needlessly. Today, PSF operates across Nigeria, The Gambia, Sierra Leone, Rwanda, Ghana, and Zambia, having touched over 150,000 lives.
With God, Biyi has built something most founders only dream of: a globally funded, internationally staffed organisation that endures. She has secured sponsorship from world-leading organisations, assembled trusted teams across multiple continents, and developed the governance to sustain it all at scale.
Beyond PSF, Biyi brings over 20 years of HR generalist experience, specialising in the public sector, and sits on the board of two charitable organisations. That breadth of professional and governance expertise is what makes her mentorship so distinctively practical.
Her mentorship is not theory. It is the lived blueprint of someone who turned the darkest season of her life into a global mission.
I lost my sight. I found my calling. Now I help you build yours.
Biyi Adewumi
If any of the below sounds like you, you’re in the right place.
Ready to take the next step? Tell Biyi about yourself.
Express Your Interest
Biyi’s volunteers travel from across the world, united by a shared calling. This is what it looks like when purpose becomes action, and when the right mentorship turns a vision into a movement.
Structured support to help you move from idea to impact, with the guidance of someone who has done it.
From your very first conversation to sustained impact in the field, here is exactly what to expect.
Fill out a short form telling Biyi where you are, what you’re building, and what’s holding you back. This helps her understand your needs before any conversation takes place.
Takes 5 minutesBiyi takes time to understand your vision, your organisation’s current state, and the gaps between the two. This honest assessment shapes everything that follows and ensures the mentorship is genuinely tailored to you.
Session 1 · Deep diveWhether group, individual, or team training, your sessions are structured around your specific goals. Each session ends with a clear action plan.
Ongoing · Structured & flexibleAs your charity grows, Biyi grows with you. Whether you are registering your first charity, launching international operations, or building a team, she brings the experience of someone who has done it all, and will walk every step of it with you.
Long-term · TransformationalWhether you’re processing a personal struggle or building a global charity from scratch, Biyi has created resources born from lived experience, not a classroom.
A raw and courageous account of what it means to lose your sight and find your purpose. Biyi traces every emotional state with honesty: despair to hope, desperation to belief, loneliness to strength in faith and back again. If you’re in a waiting season, or building something from a place of pain, this book was written for you.
Get the BookA step-by-step guide to registering and structuring a UK charity, from naming and trustees to your first official filing.
Guide · PDFAn in-depth programme on managing international programmes, from partnerships to field operations in low-resource settings across Africa.
Programme · OnlineHonest accounts from those who came to Biyi with a vision, and left with the courage and clarity to pursue it.
“From our very first meeting, Biyi gave me the strength to trust my God-given vision. She told me: ‘Don’t let anyone talk you out of your vision, no matter how big it is.’ That has been my anchor through every difficult season. Her wealth of experience and faith make her counsel deeply relatable, and she helped me shape my thinking at a pivotal moment in my journey.”
“Mummy Biyi has been a consistent source of insight and wise counsel. She has a unique ability to discern and speak into areas that require growth, helping you move forward with confidence. She doesn’t just offer advice, she intentionally builds, stretches, and aligns you with purpose, with care and genuine love that creates a safe space for transformation.”
“Very few people lead the way Mummy B does. I’ve been with her on PSF missions since 2020 and they’ve been some of the most formative experiences. She doesn’t just teach, she entrusts, investing in me practically from sponsorship strategy to building global teams. Skills I now carry into my own business. What she gives you is rare: not just the knowledge, but the room to grow into it.”
