Malawi Pump Aid Water Pump About Us

Meet the Team


UK Staff

Michael Chuter

Chief Executive

Michael brings to Pump Aid a wealth of commercial and strategic experience, as well as a passion for social change through economic development. Prior to joining Pump Aid he was Director of Finance and Resources at the National Children’s Bureau and Head of Finance and Enterprise at the Foyer Federation. A Fellow of the Institute of Chartered Accountants, he spent 30 years in the retail and consumer sectors, including Gillette, Spillers, Hertz, Burton (now Arcadia), Evans and Episode.

Duncan Marsh

Director of Programmes

Duncan Marsh has worked in the development sector for 16 years in the UK and Southern Africa. He has worked for Action Aid, VSO, Care International and the Black Sash Trust.

Brian Pertzel

Finance & Administration Manager

Throughout his career Brian has established a reputation as a transformational leader, driven by challenge and committed to furthering standards of excellence. His expertise encompasses all aspects of business management and administration, financial reporting and working closely with Boards to ensure high levels of governance.

Patrick Luong

Head of Fundraising

Patrick has a background in personal financial planning and brings over a decade’s experience helping individuals, families and trustees make sensible life, financial and investment decisions.

He now manages relationships with Pump Aid’s supporters to include corporate partners, trusts, foundations and individuals.  He is also committed to social impact through volunteering for many non-profit organisations and elderly isolated people across London and acts as Trustee of Volunteering Matters.


Malawi Staff

Tiyese Zumu-Mwale

Country Director

Tiyese is responsible for the strategic direction, oversight and management for all the programmes in Malawi. He is also involved in the scoping of new projects, the Head of Programs and the fundraising department. Previously Tiyese has worked with International NGOs and the UN in Africa, the Middle East and South Asia. He is a seasoned WASH Specialist with over 14 years of practical experience managing WASH programs in emergency, recovery and development.

Arlington Chadzuma

Community Development Coordinator

Arlington has over 18 years of experience working at grass root and district levels in the implementation and management of development programmes relating to public health promotion, social development, gender equality, HIV and AIDS. He has worked with several NGOs in WASH Projects such as Concern Universal, Willy and Partner Engineering Service (WPES), Cowater International Inc, Water Aid, Target National Relief and Development (TANARD).

Jessy Kawamba

Finance Manager

Biography coming soon


Prof. Stefan Allesch-Taylor CBE


Stefan is a London-based financier with more than 25 years of international experience. He has co-founded and/or served on the boards of companies in the property, industrial, medical, leisure, oil and gas exploration and production, technology, sports, retail, banking and financial services sectors. He also serves as a senior advisor to international trusts and high-profile business leaders.

As chairman of Pump Aid, he has been committed to advancing the charity’s mission to improve access to safe water and sanitation for poor rural communities in sub-Saharan Africa. He is also the co-founder of The Afri-CAN Café Charity, a social venture in Malawi and South Africa providing employment and training to the disadvantaged, and is the co-founder and Deputy Chairman of the London Rough Sleepers Committee, providing support for the homeless in Central London.

In 2016 he was appointed the first Professor in the Practice of Entrepreneurship at The Entrepreneurship Institute, King’s College, London. Stefan was appointed a Commander of the Order of The British Empire (‘CBE’) in the 2014 Queen’s New Year’s Honours List.

Megan Bingham-Walker


Megan has been involved with Pump Aid as a volunteer, fundraiser and board member since 2003. She participated in the Pump Aid 2000 expedition to Zimbabwe and Mozambique and the Pump Aid Malawi expedition in 2004.  She is currently setting up a start-up technology company in London, having worked in the environmental efficiency sector for over a decade as an investor, management consultant and policy maker. Megan has an MA (hons) from Cambridge University.

Ashley Lopez


Ashley Lopez is the Chief Executive Officer of Department of Coffee and Social Affairs, a fast growing independent coffee business in the UK. She is a Founding Member of the Central London Rough Sleepers Committee (CLRSC). Ashley is a Director of The Afri-CAN Charity, which provides employment and training in South Africa. She is also a director of The Goldfinger Factory, a London based social enterprise up-cycling and learning hub for London’s most disadvantaged residents. In June 2015 she joined The Fast Forward 2030 Board, a new forum established by UCL’s Institute for Global Prosperity.

Ben Nealon OBE


Ben is an actor and has been involved in the organisation ever since 1998 when he met the three founders while filming in the Manicaland area of Zimbabwe. He served as Chair of Trustees until early 2011. He was appointed Officer of the Order of the British Empire (OBE) in the 2012 Birthday Honours for services to Pump Aid.

Alan Duerden


A former Financial Times journalist, Alan has over 13 years’ experience in the media and communications sector including roles at Thomson Reuters, a major multinational in the media and financial technology sector, running a PR agency in New York and senior appointments at PR agencies in the UK. For three years Alan ran his own communications business and his now an Associate Director of Ernst & Young LLP. He is a member of the Chartered Institute of Public Relations and the Public Relations Consultants Assoc.

Dave Waller


Dave’s initial experience of the developing world came from 13 years working for Oxfam across a range of countries and intervention programmes. More recently he has worked for the Agency for Cooperation and Research in Development and the Knowledge Transfer Network. He is based in Malawi and is currently a Business Manager for CARE Malawi, part of CARE International. He holds a BSC in Geography from King’s College London and a Diploma in Computer Science from La Trobe University

Gerard Tyler


Gerard is a Chartered Accountant and is currently Group Treasurer of Urenco Limited. For the previous seven years he was Group Treasurer at Severn Trent Water plc and, prior to that, he was a Treasury Consultant for the British Broadcasting Corporation. He has worked mainly in the UK, but also in Germany, and in addition to his corporate activities he served for eight years as a London borough councillor. He qualified with Ernst & Whinney and holds a BA (Hons) in Engineering Science and Economics from Oriel College, Oxford University.

Spencer Mahony


From 2010 to 2016 Spencer worked at the British Embassy in Washington, D.C., where he was responsible for helping UK businesses export to the U.S. and attract US investment into the UK. From 2007 to 2010 he performed a similar role at the British Deputy High Commission in Mumbai, India and, prior to that he worked for the UK Department for Business, Innovation and Skills (formerly Department of Trade and Industry) in London. He is currently leading the international expansion of a DC technology start up that is unlocking government data to help level the playing field for organisations working with governments.