Upsilon Chapter at Washington State University started as a club with 12 founders in Fall of 1997.

8 of the 12 founders drove over 1500 miles across 4 states to petition for colony status in Fall of 1997. The founders were awarded status as Upsilon Colony during the trip and began preparing to petition for chapter status.

In the summer of 2000 Upsilon Colony petitioned to become Upsilon Chapter in Las Vegas, Nevada. Upsilon was awarded Chapter status and has continued to support the WSU, Pullman, and Eastern Washington communities.

In the Fall of 2007 Upsilon Chapter celebrated 10 years of developing our brothers, supporting our community, and graduating successful contributors to our local communities.