The daughter of a wildlife ecologist, raised in the savannas of West Africa and, since 2002, safari specialist, Dieke Geerling, the founder and director of the Osotua Foundation, has great knowledge of Africa, safari tourism and nature. She subsequently studied Organizational Sciences at VU University Amsterdam and lived for two months among the Maasai of the Loita Plains for her graduation project. It was then that her love for the Maasai deepened. During this stay, she got to know various Maasai, including Hellen Nkuraiya, and with them she developed the plan for the Olosinko Concept.
Dieke looks for and coordinates the knowledge, expertise and tools of specialists and brings them together to achieve a synergetic effect while always keeping the interests of the different stakeholders in mind. She believes in giving an independent voice to livestock and wildlife/biodiversity. Dieke places much emphasis on the transformation of old indigenous knowledge and methods, while mixing them with new scientific ones, creating a fusion of Maasai culture and modern technology. She has a sharp, fast and creative way of finding holistic solutions to balance the interests of the various stakeholders.