You’ll never feel lost, alone or intimidated in our gym.
We know this is how many feel when they walk into a gym and after a basic induction many give up as they simply don’t feel adequately prepared or confident.
We are a family run business and want everyone to feel at home and as an extended part of our family, all are welcome, all are encouraged to be the best they can be.
Various Discounts are available: Student/ couples/ NHS/ Military/ Emergency services/ corporate and others.
Essential Gym Membership
Full access to the gym + discounted classes
£39.95
Premium Gym Membership
Full access to the gym + 3 classes a week
£49.95
Pay As You Go Classes
£3-8.50 per class
Day and Week passes
£10/ £25
Unlimited Gym Membership
Full access to the gym + unlimited classes
£69.95
Our Equipment
Power racks
Squat racks
Deadlift platforms
Cable machines
Rowing machines
Ski-erg machine
Adjustable benches
Dumbbells from 2kg up to 40kg
Kettlebells 8kg up to 40kg
Long and short resistance bands
Fixed Barbells
EZ bars
Weight plates (1.25kg, 2.5kg, 5kg, 10kg, 15kg, 20kg, 25kg)
Treadmills
Cross Trainers
Stairmaster
Leg press (pin and plate loaded)
Chest press machine
Leg Extension machine
Hamstring Curl machine
Shoulder Press machine
Lat Pulldown machine
Chest Fly machine
Rear Delt Fly machine
Stationary Bikes
Spin bikes
Our Team
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Alice - Gym Manager & PT
I’ve always been active and been brought up around a very active family. I joined the gym when I was 17 years old and had no idea what I was doing, I learnt loads through YouTube and Instagram but benefitted most by investing in a personal trainer myself.
I want to be able to help people just as my PT did for me and this is when I pursued fitness as a career, it changed my life and I believe it can change everyone else’s too. I started my own business by doing a bootcamp and PT in a park, I then heard about Thrive opening and knew I had to be a part of it.
I started at Thrive as a fitness instructor and have now worked my way up to be the Gym Manager whilst also being fortunate enough to still run Personal Training sessions.
When I am training myself I am powerlifting and have competed to a national and international standard - I love feeling strong!
I believe that no matter your age, gender or ability you can become your most strongest and fittest self through training and hard work.
Become a better you, for you.
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Josh - PT & Sports Massage Therapist
My fitness journey started from a young age — walking in the Lake District and Derbyshire, kayaking, trips to Dartmoor, and fencing, where I competed nationally and won the Southeast Under 18s. Through my late teens, that passion faded. I stayed active, but the love for exercise was gone, and no gym habit ever stuck.
After a difficult period at the end of 2021, I decided to give the gym one more shot — and that was it. I was hooked from the first session, and within months I was the strongest and healthiest I'd ever been.
That experience is exactly why I want to help others find their best self, both physically and mentally. I believe Thrive is the perfect place to support people at every stage of their journey.
I am a qualified in Level 3 Personal Training and Sports Massage, I've built up solid experience and continue to expand my knowledge to ensure every client gets the best possible service.
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Evaldas - PT
Growing up I never really enjoyed sports or any type of fitness in general, always being left till last and never being able to prove to myself that I could do it. I always had a very supportive family that would try their best to help me – but I was always full of excuses.
One day while at work I was approached by one of my colleagues, who offered to take me to the gym with him. He gave me some simple exercises and left me to it; that same day I got my first gym membership.
Over the last 4 years I have lost 30kg – and delved deep into different sports. Starting with Powerlifting, then Bodybuilding – and now taking a turn towards martial arts.
I believe I can really resonate with those who are willing to make a change and want to be the best version of themselves. I hope to inspire people just like my PT did for me and continue to grow – not just as an individual, but as a coach, mentor, and lifelong student of fitness and discipline. -

Seb - PT
Ever since I was a toddler I’ve loved fitness. When I was a young teen I started mixed martial arts and excelled in it competing at high levels. During that time I found my passion for fitness and I wanted to make my passion my career and give people all the benefit that come with training and fitness. Im currently finishing my level 3 in personal training and moving on to my level 4.
Recently joining the team at thrive gym they have been nothing but supportive in my development as a trainer, If your looking for a friendly gym with amazing trainers who care about each individual look no further.
No matter what your current level of fitness is or what goal you have in mind we can get you there.
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Rachel - Manager
I definitely have NOT always had a passion for health and wellness… In fact I spent the majority of my life engaging in very self-destructive behaviours (don’t worry, it gets happier)
After many turbulent years trying to improve my physical and mental health, trying out my fair share of terrible advice from a host of sources, I eventually learned what true wellness is - For me, nourishing my mind and body, taking time for myself and finding a passion in strength training (and losing 30kg).
This has transformed my life to the extent that I want to help others do the same and I have the opportunity to do that in my role here at Thrive Selsey.
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Callum - Manager
Initially I came to thrive to lend a hand getting the gym set up, I expected to find a working position, instead I found a second home.
After spending years in the fitness industry, nearing a decade familiarising myself with most gyms across the country I’m proud to call Thrive my new home.
I have competed as a powerlifter for the last eight years and represented England at three world Championships which I’m proud to have won.
As much as I loved my sport, I had a much greater passion for my position as a coach and for my businesses.
Having developed my understanding of the industry, of people, I find myself now seeing many people thrive at our gym, shapemaster suite, cafe and beauty rooms.
My passion has always been in helping people, and there is no better place to see people progress and become the better version of themselves than at thrive.