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Book a Tour Start Member Experience

See what makes Catalyst different. Book a quick walkthrough with one of our team. You'll get a feel for the space, meet a few of the coaches, and see how we help everyday people train smarter and feel their best.

Randwick • Mon–Fri 5am–8pm Sat–Sun 7am–4pm

Members training at Catalyst Training Co., Randwick

Meet the owners

JJ & Siobhan — the heart behind Catalyst

More than coaches — JJ and Siobhan are the visionaries behind Catalyst. With decades of experience in fitness and real-world life balance, they’ve created a community built on care, structure, and lasting results.

JJ

Co-Founder

“I’ve always believed training should make life bigger, not smaller. At Catalyst, my mission is to help people move with purpose, build lasting strength, and rediscover what their bodies are capable of — in and outside the gym. This place isn’t about quick fixes; it’s about the confidence and resilience that change everything.”

Siobhan

Co-Founder

“Catalyst was born from a simple belief — that fitness should empower, not intimidate. I’m passionate about creating a space where everyone feels seen, supported, and capable of more than they thought possible. From our Empower programs to every session on the floor, we make health sustainable, enjoyable, and deeply personal.”