Contact Us
Phone: 888-915-9975
Address: 766 St. Clair, Costa Mesa, CA 92626

Looking to get started?
If you are looking to try CrossFit for the first time and join Fundamentals, please contact Gillian ( or call 1(888) 915-9975

What is Fundamentals?
Get Started

Membership Questions?
At any time if you have questions about your membership or recurring monthly billing please contact Gillian (

Visiting Costa Mesa?
CFCM welcomes visitors from anywhere around the world, and we encourage them to drop-in, have fun and join any of our group classes. View our schedules and drop-in policy HERE. Email or give us a call if possible so we know to expect you!
Phone: 888-915-9975

Our facility has over 8,000 square feet of training space, plenty of parking and all the right equipment. We’ve built out bathrooms, an ice bath room, large lobby and kids play area all with the intended goal of creating the best possible space for CrossFit in Orange County.

If you’d like to get to know our stable of certified, capable coaches please check out our Staff page.