The support of personal training with the energy of a group class.

Individual attention and premium programming with a maximum of just 4 clients.


Small group training blends the accountability and energy of a group class with the highly personalized workout program you’d find in personal training. It is NOT just a workout of the day you complete with everyone else in a group setting. You start right where YOU are right now, progress at your own pace towards YOUR goals, and celebrate the milestones along the way!

Small group training will help you:

  • Transform your body with guided, personalized workouts that work toward your unique goals

  • Improve motivation, accountability, and results

  • With premium programming and specialized equipment just not feasible in a group class setting

  • Progress under the watchful eye of a veteran trainer

  • Improve technique and make adjustments without worrying about stopping an entire group class when you need additional assistance


Get and stay on top of your game. Reach your performance potential.

Shed stress and develop mental resiliency, while “age-proofing” your body.

Take control of your health and wellness with our maximally efficient 45-minute workouts.


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Stay Motivated

Surround yourself with likeminded individuals all progressing toward their goals, while experiencing the benefit and creativity of an excellent trainer.

Stay Accountable

People tend to work harder in the presence of others, especially others we like! Our clients are really cool people, and often find themselves coordinating sessions together.

Stay Injury-Free

Whether you need sport-specific training, work-arounds for injuries, you are training with a medical condition, or just want to age gracefully, small group can get you there.

Our Mission

Flex Fusion is more than a gym. We are a supportive community who pulls together to reach personal goals and foster friendships along the way. Our trainers are passionate and highly certified, and our barre-tenders at the front desk are the friendliest you’ll ever meet. Our custom-built studios combine the benefits of barre, yoga, TRX, and boot camp so you don’t have to run all over town to get your workout in. Plus, our programs fuse together to give you the most well-rounded workout in the Bay. Whether you’re looking to transform your body with personal training and nutrition coaching, achieve success in small group, or maintain fitness as a lifestyle in our group classes, we’ve got it in one place. Get ready to flex your limits and reach your fitness goals.

From Our Students

I Flex because it provides workouts that I love enough to actually do! And if I stop showing up, members and instructors will notice, and they care enough to reach out and see if I'm doing okay. Gone are the days of paying for a gym membership I never use. Gone are the days of anonymity and feeling like I'm going it alone in my fitness journey. I'm never leaving Flex!

Linda S.

Flex is not your typical Silicon Valley cookie cutter studio. There is a true sense of community, talented instructors that are invested in you, and a never-boring mix of classes! Plus, it’s locally owned.

Ashley N.

I have taken over 500 barre classes all over the country and Barre Burn at Flex is in my top five favorite classes of all time!

Kayla B.

In a sea full of corporate studios, Flex stands out because of the authentic, personal workouts and community. It’s wonderful to have genuine instructors and staff who know you by name

Christina C.

The individual attention and care! It really emphasizes that I don't have to be in competition with anyone, I'm not just another face in the mirror or body on a mat. My fitness journey and goals are just as valid as anyone else's and it's ok to modify or go at my own pace.

Gina G.