• Dr. Bernd Zattler
  • Chairman

Dr. Bernd Zattler, Chairman (AccessHolding). Dr. Zattler is the Chief Executive Officer of AccessHolding AG, the majority owner of AB Microfinance, as well as a member and chairman of other banks in the AccessHolding Group. In 1994, Dr. Zattler established the consulting firm LFS Advisory GmbH, the founding shareholder of AccessHolding. His prior professional experience includes work for a multinational firm and in other institutions engaged in development finance. Dr. Zattler holds a PhD in Economics and is fluent in German, English and French.

  • Marcus Hannappel


Marcus Hannappel, Member (AccessHolding). Mr. Hannappel is a senior banking expert at AccessHolding. He has worked in several microfinance banks, including one year as the Chief Credit Officer / Deputy CEO of AB Microfinance Bank Nigeria, as well as three years as a Credit Advisor and Branch Manager in Nigeria and Madagascar. Mr. Hannappel holds an M.Sc. in Economics and speaks German, English, French and Spanish.

  • Johannes Mainhardt


Johannes Mainhardt, Member (AccessHolding). Mr. Mainhardt is the Head of Investments at AccessHolding. He has worked in several microfinance banks. He served as the Chief Credit & Operating Officer at AB Microfinance Bank Nigeria, as well as the Finance & Risk Director at Credo Bank (Georgia) and held senior positions in other network banks. Mr. Mainhardt has a degree in Business Administration and is fluent in German, English and Russian.

  • Abayomi Ayodabo


Abayomi Ayodabo is a Member of the AfDB and a Chartered Accountant of international repute, with a distinguished career in the development banking, finance and consulting industry of over 30 years. He is the Division Manager of Loan Accounting at the African Development Bank, where he oversees the administration of the Bank’s loans, grants and guarantee portfolios of over USD$45billion. He is a Fellow of the Institute of Chartered Accountants of Nigeria (ICAN) and a Certified Public Accountant (CPA) of both the United States of America and Canada. He holds an MBA Finance degree from the Ladoke Akintola University of Technology (LAUTECH). He is fluent in both English and French.

  • Oliver van Bergeijk


Oliver van Bergeijk, Member (KfW). Mr. van Bergeijk serves as a Vice President in the Credit Risk Management Department of KfW. He is also a Board Member of ICF Debt Pool LLP. Previously, Mr. van Bergeijk worked as a Vice President in KfW’s Restructuring Department, Fund Manager in the KfW Carbon Fund and as an Investment Manager for KfW’s private equity and venture capital funds investments. He holds a Master’s Degree in Economics, and is fluent in German and English.

  • Modupe Ladipo
  • Independent Director

Ms. Ladipo is a Financial Inclusion expert with over 25 years’ diverse experience in financial services. She was the CEO of EFinA, the leading Nigerian financial sector development organisation, from its foundation in 2008, and became EfinA’s Board Chairperson in 2016. Under Ms. Ladipo’s leadership, EFinA became a highly influential knowledge center for microfinance strategy and regulation, financial inclusion and non-interest finance. Ms. Ladipo has held management positions in commercial banking and strategy consulting in the United Kingdom.

  • Dr. Marc Lucassen
  • Independent Director

Dr. Lucassen is the Delegate of German Industry and Commerce in Nigeria and a Board Member of the Nigerian-German Chamber of Commerce. In these functions, he provides support services for German businesses in Nigeria and supports the development of cooperation by Nigerian and German companies. Dr. Lucassen has held top executive positions and worked as a business consultant in Europe, Middle East and Africa.

  • Klaus Mueller
  • MD / CEO

Klaus Mueller, Managing Director (AB Microfinance Bank). Mr. Mueller is the MD/CEO of AB Microfinance Bank Nigeria. He has worked in the management of financial institutions in Germany and Eastern Europe, where he has served in senior roles in risk and general management of commercial banks. Mr. Mueller holds an MBA degree and is fluent in German, English, Russian and Serbian.