FLEXX Studios Burlingame


Owner / Manager

Hello, and welcome to the day you discovered a fitness solution that changes your life. My name is Annabelle, and I’m a wife, mama of two and a former financial services exec who’s always had a passion around fitness as a lifestyle. I wanted to create something that was unique from all the studios I’ve attended over the years, something that not only would provide amazing workouts, but a sense of community, serenity and a place everyone would look forward to coming to. I wanted this studio to be what our clients look forward to the most in their day, where they check everything at the door and are greeted with smiles, get an amazing workout and leave feeling like they are on top of the world!


We are a one-stop shop for core AND cardio (Reformer Pilates, TRX, Kickboxing, Strength Training, Bootcamp, Yoga, Cardio Barre & more!). FLEXX Studios is the place that will give you the variety you need to maximize your time, money and fitness goals! Welcome to our FLEXXfam!


Front Desk Manager

My name is Nikki Hennessy and I am excited to be the newest Flexxpert to join the FLEXX Team in Burlingame. I moved to Burlingame in 2018, leaving San Francisco after 17 years. I have two children, ages 11 and 14, who both attend schools nearby, and absolutely love their new community.

As my golden birthday was rapidly approaching I decided to make my health and wellness a priority and have never been in better shape, and have never felt better, both physically and mentally. During Covid I realized the deep impact my dedication to fitness had on my mental health. I enjoy paddle boarding, golfing, running, and of course pilates! I also am modeling for my children the importance of a well balanced life, and my son loves partaking in my at home sessions, and will be one of the youngest new members at FLEXX in a few years!

I have spent most of my career in the fashion industry, working for Louis Vuitton in San Francisco, and opening the Neiman Marcus store in Ala Moana shopping center in 2005. I also worked for many years for Salvatore Ferragamo, where I was able meet one of the original family members and launched my passion for craftsmanship and fashion.

I hope to share my experience in marketing, dedication to clientele, and passion for fitness with the amazing members of FLEXX Studios Burlingame.



Trainer / Instructor

Bo is a high energy fitness instructor teaching boot camp and small group classes. He has been personal training clients for over 10 years and has training credentials through the National Academy of Sports Medicine. Exercising is an activity he truly enjoys which is apparent when you take any of his challenging classes. Being able to share his passion for health and fitness with others is one of the most rewarding feelings he has ever felt. As an athlete, Bo has always pushed himself to be the best. The goals he’s accomplished through being disciplined and dedicated to fitness has impacted his life forever. It is that same impact that drives Bo to help make others’ lives better!


Trainer / Instructor

Ignited with a passion for health and fitness, Natasha started her Pilates journey in 2001 taking Classic instruction and found herself in love!  Along the way she has taught Spinning and weight training starting at USF. Once Natasha discovered FLEXX Studios, she found herself unable to stay away.   She knew, at once, the FLEXX Method Certification was for her! More recently Natasha obtained her Classic Reformer Certification from CSM. Natasha also works as a Holistic Health and Wellness Coach, helping individuals to obtain their Nutrition goals.



Kimmy has been an inspiring and motivating Manager for our Front Desk Team and an Ambassador for our Studio for years! Now a nurse, Kimmy has a full time job nursing but still teaching Kickboxing and involved in Marketing at FLEXX! Kimmy has been an athlete her whole life specifically focused in competitive cheerleading. During her years of cheerleading she learned that good things come to those who sweat!! She was a competative cheerleader all throughout high school and into junior college. She has been kickboxing for the past three years and says its “her new found passion and she feels empowered when taking our kickboxing classes." This feeling of empowerment, strength and confidence is what she hopes everyone who attends her class leaves with. Her cardio/strength classes are challenging, dynamic and the perfect combination of hard work and fun! You’ve seen her smile at the studio now come see her be a rockstar radiating her sparkle through her high energy classes!!



Master Pilates Instructor

Adrienne has always been drawn to an active lifestyle, so it is no surprise that she found herself fully immersed in the world of fitness.  As a well-known Pilates instructor, Adrienne brings a dynamic energy to her classes and she thrives to create classes that are challenging and results driven.

Adrienne has been motivating, inspiring and helping clients embark on their own fitness journey for twenty years.  You can find her teaching in all studios at FLEXX!



Trainer / Instructor

Shelby is a California native growing up in Long Beach. She received her Bachelor of Science in Exercise & Wellness from Arizona State University. It was while living in Phoenix where she was introduced to Pilates and immediately knew this would become her passion. Shelby believes Pilates is a continuous stage of growth. She enjoys helping clients build strength, increase flexibility, and develop a mind-body connection in their practice. She enjoys finding creative ways to help clients move their bodies while focusing on proper alignment. It is her belief that Pilates is for everybody! 


Shelby is a mother and found Pilates to be extremely beneficial in the preparation for her daughters arrival. Her certification and own experience makes her qualified to teach prenatal and postpartum Pilates. 


She is passionate in helping support clients to reach their fitness goals & improving their quality of life. In a class with Shelby you should expect to feel challenged while focusing on the Principles of Pilates. 



Trainer / Instructor

Pilates helped Debbie recover from a knee injury and has been a regular part of her life ever since. After leaving her environmental engineering job in 2017, Debbie completed her Pilates training through FLEXX Studios in house training program and her classical reformer training at the College of San Mateo. She teaches both Pro and Classic classes at FLEXX Studios Burlingame. Her classes are challenging, full body workouts that are safe, effective, and fun too.


Trainer / Instructor

Sarah has been passionate about movement since she began dancing in middle school.  She was lucky enough to experience the benefits of Pilates early on, as one of her ballet teachers incorporated Pilates principles and repertoire into dance training.  Sarah continued on to study dance and elementary education at The University of Arizona.  She found Pilates again after college and was quickly reminded of how healthy, strong, and connected it made her feel.  


In 2020, Sarah began comprehensive Pilates training through BASI (Body Arts and Science International).  She is excited to grow and learn as a new instructor and to help her clients feel a strong mind-body connection.


When Sarah isn’t teaching Pilates, she is an Assistant Principal at an elementary school.  She also loves spending time with her husband and her two young children.

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