Emerald City Supporters (ECS) are a independent supporters group of Seattle Sounders FC.

Our aim is to support our Sounders and continue to create the best atmosphere in MLS. Our aim is to support our beloved Sounders and continue to create the best atmosphere in Major League Soccer. Look to the Brougham End to see and hear the ECS in action on gameday.

The ECS focuses on uniting supporters based on their love of the Sounders, but also acts as an umbrella organization that incorporates supporter subgroups of all persuasions – just as long as they are supporters of the Sounders.

If you are thinking of starting a group or need help please contact us via email ( This email address is being protected from spambots. You need JavaScript enabled to view it. ) or on our message boards. If you just want to join us, then come stand with the ECS, sing our songs, and participate in the displays.

The ECS was formed in 2005. Back then we supported the now defunct Seattle Sounders of the USL Division 1. We look at Seattle Sounders FC as a direct continuation of the same soccer tradition that the USL club was a part of. We have grown to more than 3700 members and are the largest Sounders supporters group and one of the largest in Major League Soccer.