1. Gesellschaft Deutscher Chemiker (German Chemical Society, since August 2016, https://www.gdch.de/home.html)

2. QSAR, Chemoinformatics and Modelling Society (QCMS, http://www.qsar.org/)

3. African-German Network of Excellence in Science (AGNES, since June 2015, http://www.agnes-h.org/)

4. Fellow of the African Scientific Institute (ASI, since October 2013, http://asi-org.net/fellows-in-chemistry/)

5. International Society for Infectious Diseases (ISID, since July 19, 2011, www.isid.org/)

6. Materials Research Society (MRS, since January 2014, http://www.mrs.org/home/)

7. Society of Environmental Toxicology and Chemistry (SETAC, since February 2015, www.setac.org/)

8. The African network for Drugs and Diagnostics Innovation (ANDI, since October 2010, http://www.andi-africa.org/)

9. The ANDI Centre of Excellence in Onchocerciasis Drug Discovery (University of Buea)