Bangui, Central African Republic
Your partner in audit, accounting and training
Who we are
A Central African firm of audit, accounting expertise and professional training.
COSI LEWA-CONSULTING GROUP is a leading independent firm in the Central African Republic, specializing in audit, accounting expertise, management consulting, organizational support, professional training, project engineering and institutional capacity building.
The firm supports public administrations, private companies, national and international NGOs, United Nations agencies, financial institutions, development projects and local communities in improving their governance, financial performance and management systems.
Thanks to a multidisciplinary team of experts, auditors, consultants and trainers, COSI LEWA-CONSULTING GROUP delivers services in line with the best professional practices and national and international standards.
10+
Years of experience
300+
Clients served
15+
Experts
Our areas of expertise
Audit & Assurance
Audit and assurance engagements to secure your accounts, processes and compliance, in line with professional standards.
Accounting Expertise & Finance
Complete accounting and financial expertise: bookkeeping, financial statements, tax and modern management tools.
Governance Consulting & Organizational Development
Support to strengthen your governance, formalize your procedures and manage your activities by results.
Training & Capacity Building
The firm organizes professional training in the following areas:
Business & Entrepreneurship Support
Complete support for entrepreneurs and businesses, from creation to financing.
Professional Events Organization
The firm designs and organizes large-scale professional events: forums, conferences, seminars and trade shows.
Our mission
Reveal talents, secure finances, build the future.
Secure
Provide businesses and NGOs with reliable accounting and tax expertise to secure their financial management and regulatory compliance.
Support
Be the trusted partner of Central African economic players, advising, auditing and training them with rigor and dedication.
Train
Prepare students and professionals for careers in accounting, finance and management through practical, certified training programs.
Shine
Contribute to the economic development of Central Africa by promoting accounting and financial excellence as a growth lever.
Featured training
Latest updates
June 15, 2026
Launch of the intensive bank accounting training session
COSI Firm is opening registrations for its new bank accounting training session. 20 hours of practical modules to master account management, cash operations and customer relations in a banking environment.
Read article→
June 2, 2026
SYCEBNL support: the firm now referenced by new NGOs
Two new non-governmental organizations have entrusted us with maintaining their accounts under the SYCEBNL framework. A recognition of our expertise in the non-profit sector in Central Africa.
Read article→
May 18, 2026
Free workshop: tax filing basics for small businesses
As part of our commitment to local economic development, COSI Firm is organizing a free workshop on tax filings (VAT, IRPP, CNSS) for very small businesses in Bangui.
Read article→Our partners
ONG Espoir & Développement
Développement communautaire
Ecobank Centrafrique
Banque panafricaine
Université de Bangui
Enseignement supérieur
SYCEBNL
Référentiel comptable ONG
CNSS Centrafrique
Sécurité sociale
ONG SOPADI
Développement & solidarité
Afriland First Bank
Banque panafricaine
Groupe Rayan
Commerce & services
ACF
Action humanitaire
ONFP
Formation professionnelle
ONG EDA
Entraide & développement
Oxfam
Solidarité internationale
ONG SAD Africa
Développement en Afrique
PCG
Partenaire institutionnel
ONG Espoir & Développement
Développement communautaire
Ecobank Centrafrique
Banque panafricaine
Université de Bangui
Enseignement supérieur
SYCEBNL
Référentiel comptable ONG
CNSS Centrafrique
Sécurité sociale
ONG SOPADI
Développement & solidarité
Afriland First Bank
Banque panafricaine
Groupe Rayan
Commerce & services
ACF
Action humanitaire
ONFP
Formation professionnelle
ONG EDA
Entraide & développement
Oxfam
Solidarité internationale
ONG SAD Africa
Développement en Afrique
PCG
Partenaire institutionnel
ONG Espoir & Développement
Développement communautaire
Ecobank Centrafrique
Banque panafricaine
Université de Bangui
Enseignement supérieur
SYCEBNL
Référentiel comptable ONG
CNSS Centrafrique
Sécurité sociale
ONG SOPADI
Développement & solidarité
Afriland First Bank
Banque panafricaine
Groupe Rayan
Commerce & services
ACF
Action humanitaire
ONFP
Formation professionnelle
ONG EDA
Entraide & développement
Oxfam
Solidarité internationale
ONG SAD Africa
Développement en Afrique
PCG
Partenaire institutionnel
ONG Espoir & Développement
Développement communautaire
Ecobank Centrafrique
Banque panafricaine
Université de Bangui
Enseignement supérieur
SYCEBNL
Référentiel comptable ONG
CNSS Centrafrique
Sécurité sociale
ONG SOPADI
Développement & solidarité
Afriland First Bank
Banque panafricaine
Groupe Rayan
Commerce & services
ACF
Action humanitaire
ONFP
Formation professionnelle
ONG EDA
Entraide & développement
Oxfam
Solidarité internationale
ONG SAD Africa
Développement en Afrique
PCG
Partenaire institutionnel
What our clients say
“COSI Lewa-Consulting Group has been supporting us for two years in maintaining our SYCEBNL accounting. Their rigor and knowledge of the NGO framework allowed us to pass our audits without any reservations.”
Marie Kossi
Administrative and Financial Manager
NGO Hope & Development
Ready to get started?
Whether you are a business, a non-governmental organization or a professional seeking skills, COSI Lewa-Consulting Group is here to support you.