Mantiyupwi Pty Ltd is a business operating in Wurrumiyanga, a Tiwi Islands community which has had a Township Lease since 2007. Mantiyupwi Pty Ltd is wholly owned by the local Aboriginal Traditional Owners and established as a private company to invest funds from the advance payment of rent received on signing of the Wurrumiyanga Township Lease in 2007.

Since 2008, Mantiyupwi Pty Ltd has grown into a successful commercial operator, developing and managing numerous business ventures and employing local staff in Wurrumiyanga. The company has had commercial success with building a store complex including a supermarket and four smaller retail outlets, investing funds from the advance payment as well as a obtaining a commercial loan from a mainstream bank.

Other investments include the purchase of a former workers camp, now run as a commercial accommodation and office complex, the acquisition of Tiwi Tours, establishment of a car hire business, lawn mowing and garden maintenance services, and other commercial accommodation facilities.