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Clean, convenient, committed.

A health and fitness staple in Cambridge's Kendall Square for over 40 years, we currently have 2 fully-staffed gyms open for you. Whether you're a class connoisseur, weightlifter, or cardio champ, CAC has something for you.

Virtual Tour | 600 Technology Square

Focused on Your Success

We're here to help you on every step of the journey towards becoming a healthier, fitter you. CAC aims to ensure you have the knowledge, support, and motivation you need to not only reach your goals, but smash them. Click on the links below to learn more about our offerings.

  • Visit 2/4 locations currently open in Cambridge, MA. More spaces to serve you.

  • Get a complimentary Personal Fitness Evaluation

    to assess your starting point and goals.

  • Eat better with our Registered Dietitian in a free 30-min consult, or insurance-covered packages.

  • Sweat away the stress during in-person group classes, restarting September 8th.

  • Enjoy our array of virtual options, in lieu of or complementary to our club offerings.

  • Grow stronger and smarter with our experienced staff + guest writers at our blog, CAC University.

Group Classes Return

On-Site Classes


Virtual Classes


  • Great facility! People are very nice, staff always welcomes you with a smile, equipment constantly updated.

  • Really clean gym, staff is always super nice, and the app makes everything easy to book. I've never had to wait for any equipment and there always plenty of towels. The locker rooms are roomy and super clean. The women's room makes stretching and doing floor work really comfortable. The trainer I have worked with has been super knowledgeable and encouraged me the whole way.

  • I just recently joined this gym and really love it! The staff is very friendly and very knowledgable. I've belonged to 3 gyms in Boston and this is my favorite. It is a real gym unlike some of the others that felt like spa-gyms and charged you crazy fees for it. The other thing I really appreciate is the fact that they will work with you on what the best fit is for YOU. I wanted to join and just be able to work with a trainer 3x per week. The package I was able to get took that in to account with a reasonable monthly fee and training package - no other gym gives you that as an option. Highly recommend CAC!



215 First Street (In Athenaeum)
Cambridge, MA 02142
(617) 491-8989

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Mon-Fri: 5:30am - 9:00pm

Sat & Sun: 8:00am - 4:00pm

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600 Technology Square
Cambridge, MA 02142
(617) 494-8989


Mon-Fri: 6 AM-8:00 PM

Sat & Sun: access to First St

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101 Main St.
Cambridge, MA 02142
(617) 491-8272


Temporarily CLOSED. Member access to First and Tech.

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One Kendall Square (OKS)
Cambridge, MA 02139
(​617) 491-8989

Temporarily CLOSED. Member access to First and Tech.

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