These 31-Year-Old Best Friends Started a Side Hustle to Solve a Workout Struggle — And It's On Track to Hit $10 Million Annual Revenue This Year

entrepreneur.com/starting-a-business/co-founders-of-stakt-on-starting-a-side-hustle-earning-10m/496199

Millie Blumka and Taylor Borenstein encountered a frustrating fitness issue during the pandemic and wondered if other people felt the same.

This story appeared on entrepreneur.com, 2025-08-22 14:31:00.
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