Chosen Training
“Apart from practices and training in the league, we signed him up for the Advanced middle school training with coach Dwayne, where he was able to learn new moves and unlock new skills just in a few months”
Best Personal Trainers in Brentwood, CA
14 trainers listed · 9 in Brentwood · 1 open 24/7 · 9 open weekends · 11 rated 4.5+
Data verified October 18, 2026
Grey Group Fitness/Crossfit Takedown
“They pushed us where they knew we could progress, and modified movements when folks may not have been ready for the programmed move”
Train Smarter and Harder Personal Training & Sports Performance
“I've been working with Jenny for six months and have seen improvements in both my strength and my physical body that I have never seen before with any other coach, program, or fitness center/gym”
Tobias Young Fitness
“Provides coaching calls where he checks in with you and allows you to ask questions, gives advice, support and is always enthusiastic.”
Solid Rock Fitness
“I worked with him for over three years and in that time learned so much about health, fitness, and nutrition!”
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1st Class Fitness
“Thank you Jorel and Briana for the service!!”
This page lists 14 personal trainers and training gyms recorded for Brentwood, CA. What each one says about its approach, its hours and its booking comes from its own website; ratings and quotes come from public reviews.
Area overview: Brentwood, CA
9 of the 14 trainers we list are based in Brentwood; the other 5 serve Brentwood from Oakley (3 mi), Antioch (5 mi) and Pittsburg (11 mi). The trainers on this page are rated from 4.3 to 5.0 across 858 reviews; 4 have 50 or more reviews and 11 are rated 4.5 or higher. The topics that come up most in reviews of the trainers on this page are "motivating" and "skills". 1 is open around the clock; 9 are open on Saturdays and 5 on Sundays. 5 have ten or more years of experience, the longest 15 years. 1 offers a free trial or consultation. We have a website on file for 13 of the trainers on this page; 7 publish a contact page; 10 list a public email and 3 take bookings online. We count these figures across the trainers on this page; distances are straight-line, and hours and prices change, so confirm the details with the trainer before you enroll.
Why are some trainers here not in Brentwood?
9 of the 14 listings are based in Brentwood. The rest come from other towns within 15 mi. Distances are straight-line, and plenty of trainers take clients from further out than their address suggests.
Body By Santi
“He runs his gym with an extremely non-judgmental ambiance, and clients appear to emulate that, following Santi's lead in providing a safe space for everyone to achieve their desired fitness level”
Resolutions4life Fitness (R4L Fitness)
“This allows for Sam the trainer to not only check your form and technique, it also allows for that personal training even in classes.”
Aerofly Fitness
“The owners and instructors are incredibly kind, offer correction and offer encouragement!”
Golden State Crossfit
“After the first month, I felt motivated again, liked the coaching and classes, and was excited to change to an unlimited plan so I could go as much as I wanted!”
Team Black
“After training my body feels great and my cardio fitness gets better, Dan Black is an amazing coach”
Diamond Hills Sports Club and Spa
“Very nice gym, very clean, good equipment, has a daycare inside for your kids while you work out.”
Shred Shed Fitness
“I'm learning that it doesn't matter if you're Super Fit (and some are), mostly fit, kind of fit, or like me…just trying to get fit!”
Malu Fitness
“His trainer(s) will do the same, his got all the equipment you need for a good workout, private, and group lessons; it is worth every penny.”
Why these companies made our list
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