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Barnabas Tumusingize

Barnabas Tumusingize

Managing Partner, S&L Advocates

Barnabas Tumusingize is a leading financial services sector practitioner. He heads the team at S&L Advocates, which advises 12 commercial banks in Uganda. He is also retained as legal counsel by the region’s two leading development banks.

Barnabas possesses considerable experience and expertise in disputes work. His disputes practice covers: banking and financial law, construction, commercial contracts, insurance, telecommunications and regulatory affairs. In notable high-level mandates, Barnabas has obtained favourable results for Standard Chartered Bank Uganda before the East African Court of Justice and for the National Social Security Fund (NSSF) before the Supreme Court of Uganda in multimillion-dollar disputes.

Experience has included advising:

  • Uganda’s Central Bank, in connection with a landmark breach of trust and fiduciary duty claim against the former shareholder of a distressed financial institution, and a related party to the shareholder
  • Standard Chartered Bank Uganda, before the East African Court of Justice in a USD12 million dispute founded upon a claim on a guarantee issued by the bank
  • National Social Security Fund (NSSF), in appellate proceedings to challenge a USD20 million arbitral award before the Supreme Court of Uganda
  • MTN Uganda, in high-value commercial and regulatory affairs mandates, including disputes before the commercial court
  • UAP Old Mutual Insurance Uganda in defending high-value insurance fraud litigation
  • The borrower, in connection with a USD40 million facility from a European development finance institution (DFI) for the development of a cogeneration plant and factory refurbishment 
  • The Trade and Development Bank, for a landmark USD20 million murabaha financing (Islamic finance) facility to a leading downstream petroleum company
  • A European DFI, for a USD15 million senior and subordinated loan facility to a local financial institution

Professional Qualifications

  • Advocate admitted to the High Court of Uganda (1998)


  • University College London, Master of Law (Corporate and Commercial Law) (2003)
  • Law Development Centre, Post-Graduate Diploma in Legal Practice (bar qualification) (1987)
  • Makerere University, Bachelor of Law (1985)


  • Ranked as leading lawyer in Chambers & Partners Global 


  • Member of the International Bar Association
    Member of the East Africa Law Society
    Member of the Uganda Law Society