FORTIFY JIU JITSU is a Brazilian Jiu-Jitsu gym in Sheffield, South Yorkshire, offering Gi, No-Gi, kids, women's and MMA classes. It offers a free trial class. It is rated 5/5 from 50 Google reviews.
Head Instructor: Mark Bottom
Welcome to Fortify Jiu Jitsu: The home of Brazilian Jiu Jitsu in Sheffield. Based in Sheffield, Fortify Jiu Jitsu is run by Professor Mark Bottom, a 2nd degree Black Belt, and is affiliated with Combatbase UK. Brazilian Jiu Jitsu is a martial art that emphasizes grappling and ground fighting, enabling a smaller person to defend against bigger attackers using leverage and proper technique.
First class is free. Students/Military: £5.00/class; Others: £7.00 for 2 hours, £5.00 for 1 hour; Unlimited: £50.00/month; Unlimited plus fundamentals: £70/month. Private classes available.
Head Instructor
Head Instructor
First class is free. Students/Military: £5.00/class; Others: £7.00 for 2 hours, £5.00 for 1 hour; Unlimited: £50.00/month; Unlimited plus fundamentals: £70/month. Private classes available.
17 Stalker Lees Rd, Sharrow, Sheffield S11 8NF, United Kingdom
Location Information
Contact gym for detailed directions
Address: 17 Stalker Lees Rd, Sharrow, Sheffield S11 8NF, United Kingdom
Led by Mark Bottom.
Welcoming community with women's only classes and dedicated kids programs for all family members.
Conveniently located in 17 Stalker Lees Rd, making it easily accessible for training.
Details last checked: December 2025. Contact the gym directly for the current timetable and prices.
No prior experience is necessary. FORTIFY JIU JITSU welcomes complete beginners and provides a supportive environment to learn Brazilian Jiu Jitsu fundamentals.
Memberships start from £50/month. Contact us for current prices and options.
For your first class, bring comfortable athletic clothing, a water bottle, and a positive attitude. The gym can provide information about purchasing a gi (BJJ uniform) once you decide to continue training.
Yes! We offer dedicated kids Brazilian Jiu Jitsu programs. Contact us for age group information and class schedules.
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Very welcoming to beginners. I was nervous entering a new environment to take on a new activity but it’s a friendly group with no egos that I saw. Mark took the time to try and get around everyone during the sessions. His passion and expertise is evident. Straightforward flexible membership which is great.
⭐⭐⭐⭐⭐
A friendly & welcoming club just off Ecclesall Road, high level instruction provided by an experienced & knowledgeable instructor. Great team of varied rank & experience. Everyone welcome and made to feel at home from beginners to competitors, students from other teams welcome. No uniform policy. Change your life for the better at Fortify BJJ. Be a part of the team! First class free.
⭐⭐⭐⭐⭐
Mark is one of the best coaches I’ve ever worked with. Having done various sports all my life, and a lot of the times being only one of a handful of girls, Mark has made me feel the most welcome whilst in a martial arts environment that I ever have. There is a philosophy at the gym that everyone is welcome and that is certainly true. There is a real sense of wanting people to progress not only inside the gym but outside aswell which makes about a very welcoming troop of people. If you’re a female reading this review and you’re wanting to try BJJ, but your struggling for confidence to start, then Fortify is the perfect place.