Born out a garage in 2015,
with a sheer will to bridge the gap in fitness...

At Underground Strength, we wholeheartedly believe in the transformative power of strength training. This belief is deeply rooted in Leonard Martingano’s personal journey, and let me tell you, it’s a story worth hearing.

Leonard, the mastermind behind Underground Strength, didn’t have an easy ride to success. Raised by a single mother and classified as having a learning disorder growing up, he faced challenges and labels that could have held him back. Being But he had a different plan. He found solace in the iron, the weight room, and the power of strength training. It became his sanctuary, a path to greatness.

Now, in the world of fitness, Leonard saw something that bothered him. Many clients were lost in the crowd of class-based studio gyms, running endlessly on treadmills without personalized attention or guidance. He knew he could do better, so he created Underground Strength – a gap in the industry for a gym that prioritized strength and muscle building outcomes while providing individualized coaching and support.

Leonard’s passion is infectious. He’s on a mission to help you discover your true potential through strength training, just as he did when he found his purpose through strength training. He knows firsthand that a strong body and a healthier life can unlock limitless possibilities, not just for you, but for those close to you.