Try us  free for a day. No card, no catch.

Underground gym
Live  Life Fearless. Brighton · Newhaven · Tunbridge Wells

Free  1-day pass · Unlimited gym and classes · £0 joining fee with code SEP26
Join now and get 50% off your first month's fee as a member
Join now and get 50% off your first month's fee as a member
Join now and get 50% off your first month's fee as a member
Join now and get 50% off your first month's fee as a member

Not a  chain. Not a cult. Just a very good gym.

Three  independent gyms across Brighton, Newhaven and Tunbridge Wells. Serious kit  if you want it, classes if you'd rather be told what to do, and coaches  who'll show you how either one works. Come as you are.

Find Your gym
One  membership. All three gyms. Train wherever you happen to be.

Support  that actually turns up

You  won't be left to work it out on your own. Our coaches learn your name, ask  what you're training for, and are on the gym floor when you need them. First session or five-hundredth, same welcome.

4000+
Members
25+
Coaches and instructors across all three gyms
Since 2014
Independent and locally run

Classes:  nobody trains alone

Boxing,  HYROX, calisthenics, spin, yoga and more. Every class takes complete  beginners, and every coach will give you an easier option if something's too  much. Stand at the back if you like. Most members tell us the classes are the  reason they keep coming back. Times to suit early starts, lunch breaks and  after work.

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Personal  training: a plan, and someone in your corner

Every  new member gets a free PT session, so you can try it before deciding  anything. Your trainer will show you how the kit works, build a plan you'll  actually stick to, and change it as you go. No pressure to buy more sessions.

View trainers
"Being a part of the fitness center has truly transformed my life. I can't emphasize enough how much of a game-changer it has been for me."
Connor macmohan
CEO
"I'm thrilled to be a member of Gymaxion Fitness! The personalized attention from the trainers has made all the difference in my progress."
Willshare ahmad
Marketing Officer
"I couldn't be happier with my decision to become a Gymaxion Fitness member. The positive and welcoming atmosphere made me feel comfortable right from the start."
john cenna
Head of Design
"Joining Gymaxion Fitness has been a game-changer for my health and well-being. The facility is clean, well-maintained, and equipped with the latest technology."
deron william
Head Marketing

In our  members' words

No  scripts and no actors. This is what people who train with us actually say.

JOIN THE UNDERGROUND

Start where you are.

Three gyms, one culture: work hard, look after each other, no posing. Whether you're lifting for the first time or chasing a HYROX time, you'll fit in here. No big contracts. Free PT session to get you started.

Live  Life Fearless.

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Flexible  membership, cancel any time
No hidden fees, no big contracts
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