OUR TEAM

Andrew has been a CEO in the for profit, charitable and social impact sectors. He currently chairs for profit and social impact businesses as well as coaches CEO's, founders and leadership teams. 

Barnaby spent thirty years in the investment industry before stepping away in 2024. Treebeard is now his primary occupation. His passion is to find and back talented, purpose-driven entrepreneurs with a vision to change lives for the better.

When not doing that he is likely to be found walking (and talking to) his dog or pottering around in boat.​​​​

Cassandra is a lawyer, initially training at Simmons & Simmons before leaving the city to pursue a career in academia. She is now an Associate Professor in Criminal Law at City, University of London, and has recently returned from secondment to the Home Office funded Operation Bluestone project, which has transformed the police response to rape and serious sexual offences. She is now doing similar work with the CPS. Her research area is the criminal law in the context of domestic abuse, and her new book, When Rape is Routine, is a reframe of how we conceptualise domestic sexual offending in law. Cassandra is passionate about all things Treebeard but her particular interest is in the criminal justice strand of Treebeard’s work.

Elisabeth has a deep and broad background working to solve societal problems at scale. She is a technology executive, entrepreneur and investor by background, with heavy focus on getting people and culture right, and using data to really know what is going on and solve root problems. Former Executive at Multiverse.io, CEO of AVADO Digital, COO and Partner at Mustard Seed investments and Director at Coursera, Elisabeth has also led data and technology teams at the highest levels of the British government. In another life she would like to play professional golf and be the drummer in a band.

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Iona has spent the last 20 years working in philanthropy, for a range of trusts and foundations in the UK and India.

She views herself as a generalist, having worked across a number of sectors and themes over the years. Iona is passionate about the ‘how’ of giving and is a big advocate for unrestricted funding. 

Outside of work, Iona loves to go running with her dog and play any type of sport with her husband and 3 kids!

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Kim is an experienced operations leader with more than 20 years’ experience helping organisations grow, work smarter and build strong foundations for success.  

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Passionate about organisations and initiatives that make a positive difference, Kim brings a practical, people-focused approach to operations — enabling people to do their best work and organisations to have greater impact.

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Outside of work, Kim loves playing tennis and spends her spare time attempting to get to grips with her allotment — very much a novice, but enjoying the learning curve!

Mike is a co-founder and Managing Partner at Enza Capital, a multi-stage venture capital firm investing in teams using technology to tackle some of Africa's most pressing challenges. An experienced venture investor and entrepreneur, Mike is a Kauffman Fellow and leads the firm from Nairobi, Kenya. He has worked across four continents and serves as Board Director for several high-growth technology companies spanning North, East, West, and Southern Africa.

Shish has worked in impact investment for the last 10 years and cares deeply about investing capital purposefully. He joined Treebeard in 2020, and currently supports the team and Trustees to make impact investments across a range of sectors and themes. Alongside this he continues to work with other investors, social business, and charities on a variety of impact-focused projects.

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