django-tos is a Revolution Systems (https://www.revsys.com/) project.

The following is a list of much appreciated contributors:

Daniel Greenfeld <pydanny@gmail.com>
Frank Wiles <frank@revsys.com>
Krzysztof Dorosz <cypreess@gmail.com>
akuryou
George Dorn
Nicholas Serra <nicks@ydekproductions.com>
blag - https://github.com/blag
Ali Karbassi - https://github.com/karbassi