About Us

our benefits

A smarter approach to personal training in Stonington, CT

Fitnostics is a private training studio focused on helping people build strength, improve mobility, and stay consistent with their fitness.

We specialize in coach-led personal training and small group fitness, designed for people who want guidance, structure, and a clear path forward.

Whether you’re just getting started, getting back on track, or looking to improve performance, our approach is built to meet you where you are and move you forward.

we're growing

FITNOSTICS IS MOVING

This summer we will be opening a brand new training facility in North Stonington, CT!

The new space is larger, more efficient, and designed specifically for our style of coached training. This expansion allows us to serve more clients while continuing to deliver the same personalized experience we’re known for.

Want to stay updated? Join our email list below.

To celebrate the new location

We’re offering an early sign-up promotion

The first 10 new members will receive a FREE MyZone fitness tracker along with access to special introductory rates.

CLAIM YOUR OFFER

More Than Just a Gym

Fitnostics is built for people who want more than just access to equipment. Our focus is creating an environment where clients feel supported, challenged, and motivated to continue improving over time. With experienced coaches, structured sessions, and a strong sense of accountability, we help clients stay consistent and train with purpose.

Training Designed for Real Life

From strength and conditioning to mobility, recovery, and overall wellness, our programs are designed to help people feel stronger and move better both inside and outside the gym. We work with a wide range of clients, including busy professionals, athletes, parents, and adults looking to prioritize their long-term health, performance, and quality of life.

Complete Wellness Support

In addition to coach-led training, Fitnostics also provides nutrition guidance and supplement support to help clients take a more complete approach to their health and fitness goals. Our team can recommend supplements based on individual goals and needs, and we also carry trusted supplement products in-house for added convenience and support. We proudly serve clients throughout Stonington, Mystic, North Stonington, Groton, and Ledyard, Connecticut, as well as Westerly, Rhode Island.

our team

Meet the Coaches

MARISSA TROMBINO

Gym Coach

JOE LYONS

Gym Coach

MARIO

Gym Coach

testimonials

What Our Clients Say

Peter “

FANTASTIC. You can't find a better team.

Eileen v

Joe and the team of trainers are awesome! Extremely well educated, knowledgeable, and can work with your individual needs. Highly recommend

Dorrie T

I can't say enough good things about Fitnostics...it's group training so it's social and fun and yet the groups are small, and the workout is tailored to the individuals involved...serious professionals who are committed to your improvement and also friendly and always happy to help...and a guaranteed killer workout, never boring, always different: Every Single Time! I don't have to think or count or figure anything out: it's consistently a well-planned HIIT circuit-style class and I just need to show up (which I am actually always excited to do!) Results happen, no doubt about it!

Doug H

Kathie H

Fitnostics is a great addiction to increase your strength and flexibility. I highly recommend you give it a try! You’ll be hooked!

Gabi Q

Juman H

I have been going to Fitnostics with my husband for several years. I get a great workout, I get to connect with others who are motivated, and my husband also stays fit. I recommend Fitnostics highly as without the regular coaching, training, and motivation, I would not be keeping myself fit at all.

Naomi N

Have been doing strength training for years and am very happy to get the personal training and gym equipment at Fitnostics. They helped rehab my knee after meniscus surgery and now it’s better than ever! It’s a great colleagial atmostphere with the other trainees and the workouts are varied and never boring!

Donna G

Fitnostics is the perfect place! Extremely knowledgeable in all aspects and have helped me tremendously by putting together a program that is tailored to my strengths and limitations. Joe works together with other professionals who can provide additional support In creating a total wellness plan. Great atmosphere. I couldn't imagine going anywhere else. Glad I found a place where I feel comfortable and not overwhelmed. 😊💪

Nell R

Was just in town for the week and felt instantly welcomed by this gym community! Great HIIT workouts with a very friendly vibe, fantastic coaching by Coach Marissa and Coach/owner Joe, and very clean with up-to-date equipment ! I’ll definitely be back on return visits, thanks!

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our benefits

A smarter approach to personal training in Stonington, CT

we're growing

FITNOSTICS IS MOVING

To celebrate the new location

We’re offering an early sign-up promotion

More Than Just a Gym

Training Designed for Real Life

Complete Wellness Support

our team

Meet the Coaches

MARISSA TROMBINO

JOE LYONS

MARIO

testimonials

What Our Clients Say

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