For the execution of our projects Leo Foundation is entirely dependent on fundraising. This form of financing consists of a one-time contribution to (part of) a project. We are grateful for the financial support of:
 US Fish & Wildlife Services |  Wereld Natuur Fonds |  Save Our Species: Emergency Fund & Rapid Action Grant |
 Prins Bernhard Natuur Fonds |  Quagga, het natuurbehoudfonds van dierentuinen |  National Geographic & NG Big Cat Initiative |
 Mohamed Bin Zayed Species Conservation Fund |  Globeguards |  IUCN Nederland |
 Amerfoort zoo Wildlife Fund |