The Angkor Ticket Office (Angkor Enterprise) is the only official place where you can purchase entrance tickets to read more
ConCERT Cambodia

ConCERT – Connecting Communities, Environment & Responsible Tourism
ConCERT’s mission is to reduce poverty by increasing the benefits from tourism and other sources for the most needy people of Cambodia.
It’s difficult enough to increase the amount of funding and other activities that tourists and other supporters provide; it’s much more challenging to ensure that this support brings real benefits. ConCERT helps people who wish to help to find constructive ways to do so.