Our Leadership
Justine Kosgei
Justine Kosgei
CEO & Principal Officer
Christine Nassuna
Managing Director – AAR General Insurance Uganda
Hosea Kiprop
Hosea Kiprop
Group Chief Finance Officer
Mohammed Ssebaale
Chief Operating Officer AAR General Insurance Uganda
Ssebaale Mohammed is the Chief Operating Officer at AAR Insurance Uganda, where he provides strategic and operational leadership to drive business performance, growth, and service excellence. With over 15 years of experience across insurance, finance, accounting, and business management, he has built a strong track record in financial stewardship, operational efficiency, and organizational leadership.
Prior to his current role, Mohammed served as Financial Controller at AAR Health Services Uganda and held the position of Chief Accountant at Jubilee Insurance Company of Uganda, where he led financial and management reporting, budgeting, treasury management, regulatory compliance, audit coordination, and financial controls. Earlier in his career, he served as Management Accountant at AAR Health Services Uganda.
Alongside his corporate leadership journey, Mohammed has made a significant contribution to academia as a Lecturer at Makerere University Business School since 2006. His work includes facilitating student learning, examining students, conducting research, and supervising academic projects.
Mohammed holds a Master of Science in Accounting and Finance and a Bachelor of Business Administration (Accounting) from Makerere University. He is also a qualified accounting professional with both ACCA and CPA certifications.
His expertise spans financial analysis, financial reporting, operational management, governance, and business transformation.
Mohammed Ssebaale
Chief Operating Officer – AAR General Insurance Uganda
James Kamau
James Kamau
Group Head of Distribution
GraceAnne Kamau
Group Head of Risk and Compliance
Graceanne Kamau is a highly accomplished professional in Accounting, Finance, and Risk Management. With over 14 years of experience, she has excelled in business strategy, financial management, risk analysis, and compliance. Notably, she developed an automatic motor insurance system that increased customer satisfaction by 40% and a framework that improved customer retention, revenue, and market share.
As Head of Risk and Compliance at AAR Insurance, she shapes responsible risk management strategies and contributes to global insurance literacy. Graceanne holds an MBA and a bacheloru2019s degree in Commerce, along with certifications in various fields. She also volunteers in the Sister-to-Sister Mentorship Program, guiding pupils in pursuing their ambitions relentlessly.
GraceAnne Kamau
Group Head of Risk and Compliance
Sheila Owiti
Sheila Owiti
Group Head of Brand, Marketing and Communications
Eugene Sanya
Eugene Sanya
Group Head of Technology
Caleb Maina
Group Head of Internal Audit
Caleb Maina is a governance, risk, and internal audit executive with over 20 years of experience strengthening enterprise accountability, risk oversight, and control environments across complex financial services institutions in Africa.
His career covers Kenya, Uganda, Tanzania, Rwanda, South Sudan, Ghana, and Eswatini, with experience in internal audit, risk management, governance, compliance, fraud investigations, and audit leadership. Over the years, he has helped strengthen internal audit functions by moving them beyond compliance into a more practical and business-focused role.
Before joining AAR Insurance, Caleb spent over 15 years at UAP Old Mutual Group in senior internal audit roles, supporting governance, risk management, stakeholder engagement, and board reporting across different business environments.
He is passionate about improving internal audit practices and helping organizations strengthen accountability, manage risk, and respond effectively to changing business and regulatory environments.
Caleb holds an MBA in Finance from Kenya Methodist University and is currently undertaking the Senior Leadership Management Program at Strathmore Business School. He also holds professional certifications including CPA(K), CISA, CFE, CMIRM, CPM, and QMS Auditor.
Caleb Maina
Group Head of Internal Audit
Grace Mathu
Manager People and Culture
Grace Mathu
Manager People and Culture
Esther Koimett, CBS
Chairperson
ONNO SCHELLEKENS
Director
Wassilio Diagos
Director
Beatrice Soy
Director
Jones Nzomo
Director
Menka Shah
Director
Partricia Kiwanuka
Director
Eline Blaauboer
Alternate Director
Justine Kosgei
CEO and Principal Officer





