Our Mission Is To Get You Fit In A Safe And Fun Environment

Formed in 2019 as a community center program with a group of friends, IBX Fitness has since evolved into one of the best gyms in the East Bay Area to provide fitness that can be maintained for your whole life.‍

Strength builds muscle, cardio keeps the heart pumping, but we wanted to find a better way to connect these two training styles that could provide the best of both worlds.

We created Iron Flow to bridge this gap by connecting weighted exercises through a seamless flow. Through Iron Flow, you’ll work several muscle groups simultaneously across multiple planes of motion.

Our workouts will help you build strength, enhance endurance, and feel confident. Our experienced coaches are here to guide you every step of the way.

That's Who We Are, Here's What We Do

Whether you’re working out in our studio, or from anywhere on-demand, our goal is the same: Maximize every minute of your workout by connecting Iron Flow, Strength, and Cardio movements. Our workouts and community will empower you, regardless of where you’re at in your fitness journey

A Team Of Coaches That Get Results, Consistently

  • Seazzia Castillo

    Seazzia Castillo

    General Manager, Coach

    NCEP - Personal Trainer

  • Sisi Jones-Ross

    Sisi Jones-Ross

    Head Coach

    NASM CPT, CNC

  • Ian Birnam

    Ian Birnam

    Owner, Coach

    NASM CPT

  • Brianna Costello

    Brianna Costello

    CFO

Interested In Working With Us?

We are always looking to talk to anyone who is interested in a career in the fitness industry.

Check out the positions on our career page, and reach out if you’d like to talk and learn more!