ABOUT Brothers Check out the gentlemen that make up the current Eta Kappa colony and Executive Board. Our development and accomplishments are attributed to each and every one of our brothers. History Find out more about the rich history that has kept Sigma Nu strong and successful nationwide. Sigma Nu continues to grow and develop to be the best . Mission Discover what Sigma Nu is all about! Our goals as an organization are largely based and to each and every one of these.