Join ECS

Become a 2023 member of the Emerald City Supporters, the largest independent supporter group of the Seattle Sounders!

The ECS is focused on providing the best support in MLS, and doing so by uniting supporters in their love of the Sounders. We welcome all members who aim to contribute to this mission, regardless of their home base or seat location. By joining ECS, you are ensuring that our traditions like the March to the Match and Boom Boom Clap remain, and that support for our boys continues to grow. As a 100% member driven organization, proceeds from memberships support the flags and large displays you see on matchday.

ECS memberships start as low as $20, and contain exclusive merchandise and valuable benefits only available to members.


Want to learn more about ECS?