If you’re hopelessly trying to balance your fitness portfolio and somehow make it to cycling class, yoga, barre, and CrossFit in one week, you should be using FitReserve.

The brainchild of Megan Smyth WG05—who left her job in equity capital markets to pursue her business—FitReserve offers four different plans that allow members to mix and match from more than 70,000 classes at a cross-section of studios, all at a price that’s less than half retail. After launching in New York and Boston two years ago, FitReserve expanded to Washington, D.C., this past spring, with plans to add more cities this fall and in early 2018, for all your calorie-burning needs.

Read more from the Watchlist.