CAF Venturesome


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  • Holly Piper

    Head of CAF Venturesome

    Holly leads the team, including overall responsibility for CAF Venturesome’s funds, fundraising, social investments, operating budget and personnel. Holly was promoted to Head in February 2015, and is in CAF’s leadership group.

    Holly previously worked at the management consultancy firm Oliver Wyman, specialising in the retail sector. She has a degree from the University of Cambridge, an MSc from the London School of Economics, and the Investment Management Certificate.

  • Holger Westphely

    Senior Investment Manager
    As part of the senior management team Holger shares responsibility for the strategy and operations of the investment team. Duties include appraisals of applications, monitoring part of the CAF Venturesome portfolio, overseeing SE-Assist, managing the team's operations, and supporting new business development.

    Holger co-founded Aylesbury Partnerships which provides investment and contract readiness services to organsations in the voluntary sector, and co-founded Eastside Primetimers which advises organsations in raising finance.
  • Stuart Sweeney

    Senior Investment Manager

    Stuart is a senior Investment Manager with responsibility for existing clients and new business. He worked for 23 years in investment banking, latterly with UBS. He holds a doctorate from Oxford University in economic history and has published books and academic articles while working at Oxford.

  • Joanne Wedderspoon

    Funder Relations Manager

    Joanne is responsible for maintaining and developing the relationships with the philanthropic funders who support CAF Venturesome’s funds.   Joanne also works with Marketing and Communications to ensure that CAF Venturesome’s communications generate awareness and new social investment deals.

    Joanne has a varied background in investment banking, PR, charity and social enterprise, most recently as Director of Development at The House of St Barnabas, the social enterprise members’ club.

  • Anne-Helene Sinha

    Investment Manager

    Anne-Helene is primarily responsible for the CLT II fund. She also manages a portfolio of social investment across all funds. She worked for over 10 years as a management consultant for social enterprises and charities, as well as the public and private sectors. She also has extensive mentoring experience, having provided training and capacity-building experience to numerous social enterprises and charities. She holds a Masters in Management degree from ESCP Europe.

  • Lekan Ojumu

    Investment Manager
    Lekan manages a portfolio of social investments across all funds. Previously he worked for a grant-giving foundation, managing grant giving and capacity building across London -  supporting community organisations with fundraising, business planning and governance. He also has experience in community investment, youth and education sectors.
  • Fan Gu

    Investment Executive
    Fan manages a portfolio of social investments across all funds, with responsibilities ranging from assessing investment applications to monitoring existing investee performances.

    Fan previously worked as an Investment Banker at Deutsche Bank, specialising in the financial services sector. Most recently she had completed the On Purpose programme, working with a solar financing start-up and UK-based science charity.
  • Ana-Julia Van Bilsen Irias

    Team Administrator

    Ana is responsible for providing administrative and deal support to the CAF Venturesome team, particularly with new deal enquiries, compliance and marketing.

    Ana previously worked in peacebuilding project management at Concordis International, and prior to this worked in Innovation for children’s rights at UNICEF Nicaragua. She has a degree in Law and Political Science from Université Lyon II and a MSc in International Studies and International Development from Université Sorbonne-Nouvelle Paris III.


  • Ann Lunan

    Fund Administration Executive
    Ann has responsibility for financial reconciliations and assisting with budgets and forecast processes; serving as secretary for CAF Venturesome;s various committees; and carrying out operational procedures and maintaining records and databases.

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