- Alpha Phi Omega (APO) is a national service fraternity. The Phi Xi chapter was founded at Austin College in 1970 to help the College through service projects. Its main purpose is to assemble college students in fellowship, develop leadership, promote friendship, and provide service to humanity.
- Habitat for Humanity works to implement the gospel of Jesus Christ at Austin College and elsewhere by working with economically disadvantaged people to help them create a better human habitat in which to live and work.
- Rotaract allows students the opportunity to work independently and with rotary clubs to serve the local and global community while gaining a better understanding of the world which we live in.