Post by @entrepreneur

Ken Ehrman's niece's dog escaped her invisible fence and was hit by a car in 2018 — and Ken couldn't stop thinking about the 10 million pets that go missing every year. He and his brother Michael co-founded Halo Collar, a GPS-connected dog collar built on over two decades of IoT experience. The business generated nearly $100M in revenue in 2025 and is on track for $140M this year. This is the story of Halo Collar.