About Us

Motivation will always beat talent

EVERYDAY IS AN OPPORTUNITY

Juggernaut Fitness (formerly CrossFit Juggernaut) is located in Laconia, NH. Our dream was always big, but it began small in the garage of the founder, Keith Britton. Juggernaut Fitness was born December 2012 in Gilford, NH and it rapidly grew to be the unstoppable business we know it as today!

When you walk into Juggernaut Fitness, you can expect to be welcomed by a knowledgeable Coach who is eager to help you achieve your goals. We are more than just a gym; we are a FAMILY. When you join Juggernaut Fitness, you join the strongest community in the Lakes Region. You join a community who has your back with your accomplishments and strives to make a difference in our local community through participating in multiple charitable events. When you become a Juggernaut, you become an unstoppable force in all parts of life. What your body will be able do, the confidence you’ll gain and the friends you will make will do nothing but AMAZE you.

Change your life and become a Juggernaut today!

TRAIN ALONGSIDE THE BEST

Keith Britton

Keith Britton is a New Hampshire native originally from Sandown. After a long career on the road living between New York and Los Angeles, he returned home and found functional fitness in 2012 after making a commitment to change his life.

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Later that year he decided to share his passion with the Lakes Region by opening the gym. From humble beginnings in a single car garage, the business was born in December of 2012 with one simple purpose; to make people a little better one day at time. Come join Keith and the rest of the Juggernaut community in our mission of Forging Positive Leadership.

Anna Terry

Anna has a B.S in Physical Education with a K-12 Teacher Certification. She acquired her CF-L1 Certification in August of 2013 and her CF-L2 in May of 2018. She also has her CF Defense certification (2016) and is a NASM Certified Nutrition Coach (2021).

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Her goals as a coach and a gym owner consist primarily of helping individuals maintain their independency, health and fitness as far into their years as possible!

Matthew Terry

Matt acquired his CF-L1 in 2014 and has served the Lakes Region as police officer since 2011.

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In 2021, Matt transitioned to working at New Hampshire’s Police Academy where one of his roles is to instruct and lead recruits through their PT program. Matt finds fulfillment from helping others in their pursuit of fitness, and thoroughly enjoys “dad” jokes.

After trying a number of different workout and exercise approaches, Jason started classes at Juggernaut Fitness in 2013 at the urging of a coworker. Never one to stick with any program for very long, he found the community and format of Juggernaut to be a great match for him.
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He was so pleased with the impact in his life, he obtained his L1 trainer certificate in 2016 to help give back to the community. Jason works at Concord Hospital-Otolaryngology as an Ear, Nose and Throat surgeon and is a father of 2.

Jason Mangiardi

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He was so pleased with the impact in his life, he obtained his L1 trainer certificate in 2016 to help give back to the community. Jason works at LRGHealthcare as an Ear, Nose and Throat surgeon and is a father of 2.

David Ferrer

David comes to us from Atlanta, Georgia where he obtained his PhD in Exercise Physiology. He is currently an Assistant Professor in the Health and Human Performance academic unit at Plymouth State University.

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David has experience working with NCAA Division 1 and Division 3 athletes. He is currently a certified exercise physiologist through ACSM, USAW level 1, and is International Society of Sports Nutrition certified. His passion for training and coaching stems from his former college baseball days.

Corey Gately

Corey started at Juggernaut Fitness in June 2016 by joining Bootcamp and she was immediately hooked!

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She was drawn to the community at Juggernaut and became actively involved in classes. She was diagnosed in 2009 with Lupus and has found functional fitness to be incredibly helpful for her overall health and wellness. In order to help others with their health, she obtained her CF-L1 certification in July 2019. Corey is married and has 3 children. She is a Master’s Licensed Alcohol and Drug Counselor and she works full time as the Director of Substance Use Services at LRGHealthcare.

Elisabeth Rosencrum

Lis has been physically active her whole life – from being a competitive athlete through college, and then roller derby for the past 11 years.

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She found CrossFit in 2016, and fell in love with the varied approach to fitness, and the community at her first gym in Cincinnati, Ohio. Lis is a certified athletic trainer by trade, and professor of Allied Health Sciences and Athletic Training at Plymouth State University. Her areas of clinical expertise include the prevention of catastrophic injury and illness, and therapeutic exercise for return to activities of daily living and sport. While she currently primarily teaches future athletic trainers, she has more than 8 years of collegiate athletic training experience at the Division I & III levels. Lis has a PhD in Physical Education and has maintained her Certified Strength & Conditioning Specialist credential through the National Strength & Conditioning Association since 2006, as well as several other complementary credentials related to sports medicine and performance.

Sara

Sara joined Juggernaut Fitness back in 2015 after the recommendation from a co-worker, and found her home in the Juggernaut community instantly. Finding the love for what Juggernaut Fitness has to offer, she wanted to help share that passion and help others be unstoppable, too!

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Since then, she’s become a master of all trades when it comes to all things Juggernaut. Specializing in social media marketing, event planning and customer service; she uses these skills to attack and succeed in her mission of ensuring all current and future Juggernauts have the best experience possible!

Deirdre Moulton-Gagne

Deirdre has lived in New England all her life. She actively played sports in high school and always maintained a membership at a local gym. She struggled during her teen and early adult years, but was rescued by her children, when she became a mother to her two sons. Deirdre went back to college and studied small business management.

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Being a business owner and mother of two, her health took a backseat. During the fall of 2018 she decided it was time to take back her life. She wanted to be around for her children for many years to come. She joined a bootcamp and began focusing on sustainable changes. After much coaxing her sister convinced her to attend class at Juggernaut. Deirdre was intimidated and thought that she would be amongst ‘elite athletes’.

Her first experience at Juggernaut Fitness was Memorial Day 2019 for the grueling Hero WOD, Murph. That day she fell in love with the community, and the concept in action of ‘constantly varied’ and ‘infinitely scalable’ movements. That day everyone was doing the SAME workout, scaled to their own abilities (and yes, there were some elite athletes there too!). Everyone gave their all, whatever that looked like for them, and people of all fitness abilities encouraged and supported one other. It was truly moving.

Deirdre has since realized that this was always her missing link in sustainable, whole-body wellness, and so began her passion for this community and style of exercise, and her dedication to help others who align with it as well. Deirdre received her CrossFit L1 over the summer of 2022 and began coaching at Juggernaut in the winter of 2022.

Deirdre has a deep love for her children, her family, and her friends. She has a rooted commitment to functional varied fitness and being a hand to those in recovery. She truly believes in the concept of ‘it takes a village’. She believes it takes love, grace, support, and the guidance of a village in an effort to maintain healthy relationships, to raise children, to grow, to believe in yourself, and to keep trying! She treasures the village that is Juggernaut Fitness and the part she plays in it as your coach!

Brandon Early

Coach Brandon has his CF-L1 and has been a part of our Juggernaut community since 2021.
Get to know a little more about Brandon below

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Hi there! I’m Brandon, it’s a pleasure to meet you, if we haven’t met yet then let me tell you, I’m looking forward to when we do. I grew up in Seacoast New Hampshire as a pudgy, mac n cheese and hot dogs, Saturday morning cartoon loving kid. I eventually stumbled into Cross Country and became a less pudgy, but still mac n cheese and hot dogs, Saturday morning cartoon loving teenager. I was active through college and shortly after graduating found functional fitness and fell for it harder than my high school crush. I’ve now been involved with functional fitness for nearly 10 years, and started coaching about four years ago. When I’m not here at the Jugg-spot I’m either working from home, walking my dogs, or playing (and probably losing) a game of cribbage with my significant other. My favorite movements are deadlifts, double unders, and rowing, and yes, I still like Saturday morning cartoons and mac and cheese, just not the hot dogs.

Sarah Higgins

Sarah is our new part-time administrative assistant, helping us tackle all things Juggernaut Fitness.

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Sarah works full-time at Concord Hospital in the Otolaryngology Department, where she has spent years honing in her expert-level administrative and customer service skills! She has 2 beautiful children and enjoys spending time with her family. She recently completed boot camp to restart her journey to a healthier lifestyle! She loves what Juggernaut Fitness has done for her so much, that she wanted to become a part of the team!! She looks forward to achieving her goals and helping you do the same!

Jessica Currier

Erin Gately

Michael Rosencrum

Change Your Life

Flexible membership packages to suit all levels of training to help achieve your fitness goals

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