We have detected that you do not have web browser cookies enabled. Cookies are required in order to add items to your shopping cart and place an order. Please enable cookies if you wish to shop on merrithew.com. Thank you.
Merrithew logo


All Instructors

Jeff Ong

Merrithew Corporate Training Center
Toronto, Ontario Canada

Jeff is a member of the Ontario Osteopathic Association (OOA) and a graduate of the Canadian Academy of Osteopathy (CAO). As a classically trained osteopathic manual practitioner, Jeff’s training has given him a deep understanding of osteopathic principles. He applies his extensive knowledge of the human body by successfully diagnosing and treating a diverse range of musculoskeletal and physiological problems. He enjoys continually learning about the human body and improving his osteopathic treatments in order to help others.

 In 2000, Jeff graduated with a degree in Nutritional Science from the National University of Malaysia. In 2006, after working for several years in the healthcare industry, he moved to Toronto and enrolled in the STOTT PILATES® Certification program. In 2007, Jeff was invited to become an Instructor Trainer for the Merrithew Education Department in Toronto in 2008. Since then, he has taught STOTT PILATES education programs and workshops internationally throughout Asia and Europe as well as in Canada.

Jeff’s interest in human movement and health is complemented by his gentle and effective teaching manner, drawing both clients and fellow Instructors alike to work with him on a regular basis. As a well-known and respected Pilates Instructor in the industry Jeff is continually inspired by the opportunity to teach others and regularly participates in Pilates and movement workshops in order to deepen his knowledge of anatomy, biomechanics and teaching.

Jeff’s passion for results-oriented, progressive, rehabilitative programming is rooted in his teaching approach. This unique style has established him as a lead Pilates Instructor who is able to provide high quality, diverse Pilates workouts for every client at any level, while being mindful of specific needs, focuses and goals.
Matwork, Reformer, Cadillac, Chair, Barrels, ISP, ZEN•GA®, Rehabilitation

Jenn McNellis

C2 Pilates
Avon, Connecticut USA

Jenn’s career in the fitness industry began as a group exercise instructor and personal trainer.  She holds a Master of Science Degree in Exercise Physiology, and is a Certified Strength & Conditioning Specialist with the NSCA.  In 2007, Jenn became an Instructor Trainer for Merrithew™, specializing in STOTT PILATES®.  She is also an Adjunct Professor in the Exercise Science Department at Southern Connecticut State University and teaches Pilates at The Edge Fitness Clubs in Fairfield County, Connecticut.  

Matwork, Reformer, Cadillac, Chair, Barrels, ISP

Jenna Hansen

Floating IT
Salt Lake City, Utah USA

Jenna has a passion for life, the outdoors, education and people. She is the owner of Awaken Studios and Retreats. She is a Certified STOTT PILATES® Instructor Trainer in Mat, Reformer, Cadillac, Chair and Barrels. She is also Total Barre™, ZEN·GA® and CORE™ Athletic Conditioning and Performance Training Instructor Trainer. She is also a yoga teacher with 500 hours of training, an AntiGravity Fitness Certified Instructor, AFAA Certified, a Les Mills Group Exercise Instructor, a Certified Personal Trainer from the National Association of Sports Medicine and holds a Bachelor of Fine Arts in Dance and a Masters in Education from the University of Utah and a secondary teaching license.

Along with teaching fitness, Jenna has also taught snowboarding, skiing, recreational therapy and dance. She has taught dance, drama, and Pilates in New Zealand and was a rafting and hiking guide in Alaska.  Jenna has competed and placed in IRONMAN triathlons, snowboarding and dance competitions. She loves seeing how her students’ lives improve as they work towards fitness goals, injury rehabilitation or an improved quality of life. Her clients include professional athletes, grandparents, firefighters, endurance athletes, professional strongmen, stay-at-home moms, children and everyone in between. Jenna’s life’s work however is her three children, who help remind her how to live life in the present with a sense of awe for the amazing world we live in.

Matwork, Reformer, Cadillac, Chair, Barrels, ZEN•GA®, CORE™, Total Barre™

Jennifer Dahl

Toronto Corporate Training Center
Toronto, Ontario Canada
As a member of the Merrithew team since 2000, Jennifer brings her abundant energy to the Corporate Training Center in Toronto. A highly-regarded Lead Instructor Trainer for STOTT PILATES® and an Instructor Trainer for ZEN•GA® and Total Barre, she teaches courses, examines students for certification and presents workshops in Canada and internationally. Additionally, Jennifer complements her teaching repertoire with a focus on high performance athletic training, injury recovery and rehab. She holds a Bachelor of Science degree from the University of Toronto, is an ACE certified professional trainer, and is also a graduate of the School of Toronto Dance Theatre. Jennifer continues to work as a professional dancer and choreographer along with her Pilates career, and has performed across Canada with numerous dance and theatre companies.
Matwork; Reformer; Cadillac, Chair, Barrels; ISP; ZEN•GA®; Total Barre™; Merrithew™ Fascial Movement

Jennifer Montie

Equilibrium Mind-Body Fitness
Bloomfield Hills, Michigan United States

Jenn has an extensive background in Ballet and performed with Mid-States Regional Ballet Company, Ballet Americana for many years. Currently she instructs Ballet and Pilates classes for Ballet Americana and helps run company rehearsals. She discovered Pilates through her dance training and loved the conditioning, strength, and balance it provided. A fully certified STOTT PILATES® instructor, Jenn became an Instructor Trainer for Merrithew™ specializing in STOTT PILATES in 2014. Jenn also holds certifications from ACE, Xtend Barre and TRX®. Jenn has been working at Equilibrium since 2007, and enjoys giving a very detail-oriented workout to clients of all ages and fitness levels.

Matwork, Reformer