Olivier started his attorney’s career as an associate at Nswal law firm with a general practice in civil and commercial law and an emphasize in criminal law including military criminal law and business criminal law. He then integrated the Roger Masamba law office, a business law firm, where he focused his practice on commercial litigation, corporate law, reviewing contracts, labor law and debt recovery. He handled cases for banks, industrial factories and oil companies before high courts in DRC.

After setting up the Isinki & Mbongo law office which moves into IsLaw, Olivier Isinki practices essentially business law and criminal business law. His practice covers corporate law, international business transactions, debt recovery, contracts, commercial litigation and arbitration, Real Estates and construction law.  Olivier Isinki works also on investments law and compliance. He is entitled to appear before the Common Court of Justice and Arbitration (CCJA) which is the highest court of OHADA located in Abidjan, Ivory Coast.


Admitted to practice law since 2001, Olivier Isinki is French-English bilingual and holds a Master of Laws (LL.M) in Corporate Law of The Ohio State University Moritz College of Law (USA), a master’s degree (Diplôme Universitaire) in Intern and International Arbitration of University of Montpellier (France), and a Bachelor of Laws (LL.B) of University of Kinshasa (Congo),


Timothée Tseki is licensed in Kinshasa/ Gombe bar since 2001, and advises local and international clients, as well as public or private entities in Contracts and Public Markets law (Public-Private Partnerships, Markets Concessions and Procurement, public service delegation, occupation of the public domain), on projects affecting the real estate sector (property development law and, construction law), trade and industry, general commercial law, corporate law, intellectual property and investment law, banking law, insurance law and the natural resources sector (mining law and environmental law).


As a former associate at Emery Mukendi Wafwana Law Firm, he participated in the development of the Mining Code of the Democratic Republic of Congo (Law No. 007/2002 of 11 July 2002) and its implementing measures.


Timothée Tseki also intervenes in litigation where he has notably represented and assisted parties in various proceedings before the Council of State, the Courts of Appeal in civil, commercial and labor disputes.


In addition to his legal activities, Timothée Tseki served as Legal Counselor in the Office of the Governor of the City of Kinshasa (2007-2009). In this context, he participated in the preparation of several decisions of the provincial government of Kinshasa and in the signing of several administrative contracts. He kept from this experience good contacts in the Kinshasa Administration.


Timothée Tseki holds a master’s Degree in public Contracts Law from the University of Valenciennes (France), a DEA (a French diploma) in Public Law and Private Law (Faculty of Law of Douai, France) and a bachelor’s in law, Economics and Management from the Faculty of Legal, Political and Social Sciences of Lille 2 (France). He also holds a degree in Law from the University of Kinshasa.


Nancy Mbongo has been admitted in Kinshasa/ Matete bar since 2001. She set up in 2004 with Olivier Isinki, her husband, the Isinki and Mbongo law office which is now known as IsLaw. Nancy Mbongo practices family law, real estate law, contract law, civil and commercial litigation as well as criminal law. She advises her clients on immigration law helping them obtaining work permits, long stay visas and family gathering. She intervenes also in titles conversion, mortgages and other securities interests among other issues in real estate and construction law.


Nancy Mbongo has successfully handled several cases before high military courts and worked on several projects on transitional justice that leaded her to be admitted since 2016 as a counsel at the International Criminal Court (ICC) located in The Hague in Netherland.   


Nancy Mbongo has been the Vice-President of the Association of Females Advocates of Congo (AFEAC). With AFEAC Nancy Mbongo was involved in fight against violence to women and sexual abuse in partnership with ASF (Avocats Sans Frontieres – meaning Lawyers Without Borders – a European NGO). Nancy Mbongo held several workshops in universities, high schools and within the army.  

Nancy Mbongo hold a Bachelor of Laws (LL. B) of the Protestant University of Congo.


Rosalie Katamba Mbuyi has been admitted in the Bar of Kinshasa/ Matete on December 2006 and worked in Kapita Mba law firm before to integrate A. Kibinda law firm and to collaborate in Kusesuka law office. Rosalie practices civil and commercial litigation before the Court of Appeal and the Common Court of Justice and Arbitration of OHADA. She has a good experience in business law within she successfully handled complex corporate matters, bankruptcy questions and general commercial issues. Rosalie Katamba advises clients in forest and environmental law. She assesses compliance of investments projects, intervenes in mining law by helping her clients in obtention of mining titles and diverse legal authorizations or in drafting and interpretation of contracts. She has a good practice in family and immigration law within she works on obtention of work permits and family gathering. She intervenes also in mortgages and other securities interests among other issues in real estate and construction law.

Rosalie Katamba worked as an intern in the Mining Cadaster from July to December 2011 from where she kept a very good networking. She worked also as a legal consultant for some NGOs like Centre Multisectoriel de Limete where she worked on a project of rehabilitation of public schools.


Rosalie Katamba holds a law Degree from University of Kinshasa and a certificate in Execution Procedures, Financial Management of Projects and Procurement.


 Freddy Mulamba Senene (Of Counsel)


Attorney at the Bar of Kinshasa / Gombe since 2001, Freddy Mulamba Senene is the Permanent Secretary of the Arbitration Center of Congo (CAC). He advises in arbitration and mediation, in corporate law, telecommunications law, real estate and mining law.

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