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37 Mill Street, Berlin

One-Month Unlimited Bootcamp, Kickboxing, and Yoga Class Membership for One or Two (Up to 84% Off)

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Up to 84% Off
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Help Strength in Numbers

Support this business with a RISK-FREE purchase. If you're unable to use your local Groupon, you can trade it in for use toward any of our other great local businesses - until you either view the voucher or it expires.

This merchant is open for business and taking steps to help protect your health by following all applicable laws and regulations concerning COVID-19 safety.


Qualified trainers lead Bootcamp, Kickboxing, and Yoga classes that feature slam balls, strength training, core work, kettlebells, and more

Customer Reviews

100% Verified Reviews
All reviews are from people who have redeemed deals with this merchant.
10 ratings2 reviews
September 14, 2019
So far it has been fantastic! Very friendly staff, well organized, clean and an awesome workout!
13 ratings10 reviews
August 5, 2019
I am enjoying the gym. People are really great and all very helpful and encouraging. Going to keep going!
1 ratings1 reviews
April 16, 2019
I love strength in numbers! I would absolutely recommend this to everyone! The instructions are super helpful and encouraging. The facility is always clean and everyone is always friendly! I wish I could continue to workout there once my Groupon expires but I can’t afford the membership.
3 ratings3 reviews
March 22, 2019
Great and friendly instructors. Willing to work with you at your pace.
17 ratings3 reviews
March 21, 2019
By far best work out in years!!!! If you want to work your body out from head to toe using your own body weight this is the place to go!!! The instructors keep you motivated to keep pushing yourself....
2 ratings2 reviews
July 13, 2018
This was exactly what I was looking for in a gym/workouts. It is a great atmosphere and the coaches are great. I have since signed up for a membership
8 ratings2 reviews
July 22, 2019
A great experience. I had never done kick boxing before and the trainer and other students were supportive and helpful. I would definitely recommend Strength In Numbers.
2 ratings2 reviews
January 30, 2019
Great workout and wonderful instructors, we will definitely be back!!
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What You'll Get

Choice of:

  • One-Month Bootcamp, Kickboxing, and Yoga Fitness Class Membership for One
  • One-Month Bootcamp, Kickboxing, and Yoga Fitness Class Membership for Two

See the schedule.

The Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. Not valid for clients active within the past 12 months. Registration required. Limit 1 per person, may buy 2 additional as gifts. Must use promotional value in 1 visit. May redeem across visits. Valid only for option purchased. All goods or services must be used by the same person. Must activate by expiration date on voucher; membership expires 30 days from activation date. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About A Chat with Strength In Numbers

What services does your business offer and what makes your business stand out from the competition? Our classes are limited in size so that each member gets maximum attention and support from our talented coaches to help burn fat fast and take your fitness to new levels. Our members are supportive and motivating making you feel like part of the family from day one. Never get lost in a crowd again!

Exercise is challenging. How do you keep clients motivated and engaged? _Each month we design a new program guaranteed to accelerate your fitness and fat loss goals. We provide each member with a "Strength In Numbers" journal so that you and your coach can track your workouts creating benchmarks of your performance motivating you to push harder in each workout. _

What was the inspiration to start or run this business? For more than a decade we have witnessed members of bootcamps, group fitness, and other fitness classes get lost in the crowd, losing their drive and commitment making it easy to quit. Their trainers never gave them confidence or the guidance to be successful. No more, we make your experience personal!

What do you love most about your job? There is nothing more rewarding than having a part in someone achieving a goal, surpassing it, and making a new one. The camaraderie, the fun, the hard work, and all the new accomplishments constantly made by our members makes up the biggest part of what makes us love what we do as much as we do.

Strength in Numbers

Gym, Health Club