There are only 6 institutions that currently house this species. Regulation has only recently changed so they can be moved out of their native state, Queensland. Currumbin is the only place that house two species of tree kangaroo in Australia and the only one to house Goodfellow's and Lumholtz's in the world.
There are actually eight facilities as far as I know that house Lumholtz’s Tree Kangaroos - Currumbin Wildlife Sanctuary, David Fleay Wildlife Park, Dreamworld, Oakvale Wildlife Park, Rainforestation Nature Park, Snakes Downunder Reptile Park and Zoo, Wildlife Habitat and Wildlife HQ.