CELESTINE OKANYA – Chief Executive Officer

Celestine Okanya is an International Expert on Nonprofit Organization Management and  a Registered Clinical Pharmacist. He has over 30 years diverse professional experience ranging from Research, Pharmaceutical Sciences, corporate management, Academic Planning, and management of Nonprofit Organizations.

Celestine Joined Nigeria National Accreditation Service NiNAS from Peaceland College of Education, Enugu where he was Director, Academic Planning. Prior to this, He held other positions, including; Principal Consultant, SSN Consulting Nigeria; Executive Director, Partnership Opportunities for Women Empowerment Realization, POWER and served as the President of Children and youth International (CYI), a US based Nonprofit Organization.

Celestine Okanya  is currently the President of the Regional Accreditation System (RAS) for  ECOWAS region.

He is an alumni of University of Jos, Nigeria, Hamline University St Paul MN, United States, and Chulaongkorn University, Thailand.


LAWRENA OKORO – Director Laboratory Accreditation

Lawrena Okoro is a Laboratory Specialist with over 22 years working experience. She recently joined Nigeria National Accreditation Service where she currently works as Director Laboratory Accreditation. She holds a PHD degree in Medical Microbiology and Parasitology and Master of Science degree in Total Quality Management and Organisational Excellence.

She started her work career with the University of Calabar Teaching Hospital as a Medical Laboratory Scientist. She later joined the Family Health International GHAIN project where she was the Senior Laboratory Advisor High Tech and Quality management. Prior to joining NiNAS management team, she served as a public servant and rose to the post of Deputy Registrar/Director Laboratory Accreditation and Regulation of Medical Laboratory Science Council.




Tamunobubelebara Emmanuel is an expert who has developed his career through various fields which include secretariat and administration management, and logistics , Procurement and facilities management, Customer service and Human Resources management.

Tamunobubelebara Joined Nigeria National Accreditation Services NiNAS where he currently works as the Office Assistant,  from British Council managed project- Nigeria Stability and Reconciliation Programme-NSRP funded by DFID where he was the Facilities and Procurement officer. Prior to this, he held other positions including, Logistician with British Council- NSRP, Exams and Customer service officer with British Council, Human Resources Consultant with Pact Nigeria, Logistics Consultant with Soft Quest Education Foundation, Administrative Consultant with Stand Up To Cancer Nigeria and General Manager with MYK Gold services. He held other positions aside paid jobs which include President and Founder of the Better Life for Youths Initiative and Welfare Coordinator of  the British Council Staff Association body, NASA.

He is an alumni of University of Port Harcourt with a discipline in Human Physiology, and is currently undergoing an MBA with the University of South Wales, UK. He also has a PGD in Strategic Project Management from ABP, UK and has attended various international trainings in the UK and obtained certificates in several disciplines with organizations like, British Institute for Facilities Management( BIFM), Purchasing Management Services, ( PMS)-UK, World Bank, to mention but a few. He is a member of the Chartered Institute of  Procurement and Supply- CIPS, UK and American Institute of Public Administration.


KEREN ESEMONU – Administrative & Finance Assistant

Keren, is a finance and administrative professional with strong competency in Grant Management, Cash flow projections, Financial Reporting and Analysis, Financial Budgeting, Human resource management, Logistics management and organizational policy formulation and implementation. Keren’s career has progressed from office support staff to finance officer, deputy finance manager, finance coordinator and finance and administration manager with rich work experience in local and international development organizations. She is a post graduate student of Rivers State University for Master’s degree in Business Policy and completed her dissertation on policy implementation and workers performance in NGOs. She joined Nigeria National Accreditation Service from Christian Aid International –North-East Nigeria (Borno Office) where she coordinated financial activities of 3 states of the region. She is currently pursuing capacity building and certifications with Institute of Chartered Accountants of Nigeria and Chartered Institute of Personnel Management of Nigeria with interest to continue supporting development activities through competent administrative functions.

Keren’s passion is to serve humanity, inspire community responsibility that brings about positive change. She was selected as top 12 Finalist from over 4000 applicants for British Future Leaders Connect, 2017 for her policy influencing approaches.  She supported the development of United African Youth (UYA) and Environmental Friendly Initiative (EFI) as international and local outreaches to create and trigger local and global actions.


JOSHUA JEGEDE – ICT & Web Content Expert

Joshua Jegede is a National Expert in ICT and web content management. He is an Engineer by training with over 12 years hands-on experience in Information and Communication Technology. His area of expertise includes computer networking, network security, programming, database management, web design, application development, ICT system development and infrastructure management.

Joshua joined Nigeria National Accreditation Service from Oxfam Novib, an International NGO with presence in over 80 countries. Prior to joining Oxfam Novib he was Web Master for University of Maiduguri ICT unit; Project Manager, Stockmatch Ltd; Director, Digitalink Technologies; Technical Manager, Yaysib computers.

He is an alumnus of University of Maiduguri, National Open University of Nigeria and an MBA student with University of Nicosia, Cyprus.



Okechukwu Ejiofor is a Metrologist with over 20 years work experience in verification, training and development of SOPs. In February, 2018, he joined the Nigeria National Accreditation Service (NiNAS) as Quality Manager. He holds both a B.Sc. and an M.Sc in Physics from the University of Jos, Jos, Nigeria.

Before joining NiNAS, Okechukwu was a Chief Legal Metrology Officer in the Weights and Measures Department of the Federal Ministry of Industry, Trade and Investment, Nigeria, where he served as a supervisor and quality manager. He has successfully completed Quality Management Representative (ISO 9001:2015, ISO 19011:2011) and Certified Quality Manager (ISO 22000, TQM) training courses. In 2016, Okechukwu Ejiofor successfully completed the Accreditation Assessor Training Course (as per ISO/IEC 17025 and ISO 19011) organised by UNIDO to raise a pool of assessors for NiNAS. In addition, he has attended training courses in ISO/IEC 17011:2004 and ISO/IEC 17025:2017.



STEPHEN CROSS – International Expert

Stephen Cross is the former Vice-President of Accreditation Services with the Standards Council of Canada.  In this position Stephen directed the activities of SCC’s accreditation programs for laboratories, certification bodies and inspection bodies.  Over a thirteen year period with the SCC he managed both the laboratory accreditation program and certification body program as well as audited organizations for accreditation purposes.

Prior to working at the SCC, Stephen was the Technical Manager for Environmental Choice, a product certification program leading to Canada’s Eco-label. Previous to working in the field of conformity assessment, Stephen worked as a technical underwriter in the commercial insurance industry.  This involved underwriting of general, professional and environmental liability, as well as commercial property through the application of quality management and risk management principles.

Stephen has carried out a number of contractual assignments in Africa in the field of conformity assessment and is currently working on this basis for the United Nations Industrial Development Organization, to assist with the establishment of an accreditation service for Nigeria.  Stephen has degrees in Biochemistry, Environmental Studies and Business Administration.