Enso Pilates is a single Brooklyn studio that its founder, Renee Chen, owns outright and still teaches in — no investors, no franchise, no second location. In a boutique-fitness market increasingly rolled up by private equity, it answers to its owner and its Boerum Hill neighborhood rather than to a fund's growth timeline. As a young, single-location studio, it has little public labor or environmental track record to date; what stands out is the independent ownership rather than a proven conduct record.