Welcome to SPI
Welcome to the Strength & Performance Institute (SPI). SPI is unlike any other gym in the Clearwater, Safety Harbor, Dunedin, and surrounding area. We are a boutique-style, private personal training facility designed for individuals of all ages and fitness levels who desire to train and learn in a more intimate environment where you feel welcomed, heard, and empowered. We are a team of genuinely caring, dedicated fitness professionals, equipped with industry-leading knowledge and credible experience. Our personal trainers are passionate about educating and supporting clients to become the strongest and healthiest versions of themselves. Let's talk today about your fitness goals and discover if an SPI personal trainer is the right fit for you and your goals.
Why Train at SPI
Training with a Strength & Performance Institute (SPI) personal trainer in Clearwater is a different experience than what you find at a traditional big-box corporate gym. We cater to clients who prefer to train in a private more intimate setting without distractions or pressure. We ensure a caring, highly knowledgeable strength coach and personal training professional will curate your training sessions to align with your unique individual needs, goals, and desired results. If you seek accountability, education, and long-term success in your fitness journey, SPI may be the ideal gym for you.
Where We Are Located
Meet Our Dedicated Personal Trainers
Learn more about the unique stories of our personal trainers and their passion for helping clients attain real, long-lasting health and fitness goals.
The SPI Training Gym
The Strength & Performance Institute provides an intimate and private personal training experience in a small boutique-style gym. You can always guarantee that your SPI personal trainer will be focused on you during every training session. No distractions, no pressure, and only professional, knowledgeable, and highly experienced trainers.
Our Clients Say
"Donnie is an expert at making people stronger and faster. Having him as a strength coach has increased my confidence and overall quality of life in many ways. Listen to what he says and you'll feel better than ever!"
Jimmy Culler | Google Review
Aches & Gainz Podcast
with Doc & Donnie
We put an emphasis on education at SPI. It is a key component to the mission and services offered as a personal trainer here in our Clearwater, FL community. This podcast series is a great resource where Dr. Hays Estes, DPT of Premiere Physical Therapy and Donnie Kiernan, CPT, owner of SPI, offer two different perspectives and levels of education and experience on a variety of industry related topics, with an edge of entertainment.
