After a year of major growth, Jessica Heinzelman’s smart, modular public bathrooms are in 20 cities and counting. BY BRYCE COVERT MAR 10, 2026 Although she lives in the Bay Area, Jessica Heinzelman was thrilled as she watched a press conference held by Zohran Mamdani, the new mayor of New York City, near a parkway overpass in January. Mamdani announced that he was committing $4 million to install roughly 20 to 30 new modular…








