Prof. Lucy W. Irungu is a fellow and member of many scientific and professional organizations, among them;
- The Royal Society of Tropical Medicine and Hygiene.
- The African Network of Scientific and Technological Institutions (ANSTI)
- The Association of African Insect Scientists
- The East African Society of Parasitologists.
- The Entomological Society of Kenya (ESK)
- Pan African Malaria Consortium for Africa (PAMCA)
- Fellow of the Kenya National Academy of Sciences (KNAS)
- The Kenya Institute of management (KIM)