Wynnchurch Capital has sold Boss Industries, a LaPorte, Indiana-based provider of power take-off and engine-driven air technology, although financial terms remain undisclosed. Founded in 1988, Boss offers a range of products including compressors, generators, and vapor recovery systems. Wynnchurch, based in Rosemont, Illinois, specializes in middle market investments and manages $9.2 billion in regulatory assets since its inception in 1999. Paul Ciolino, a partner at Wynnchurch, highlighted Boss as a market leader with innovative products and a flexible manufacturing platform. Legal advice was provided by Paul Hastings, while D.A. Davidson and Deloitte served as financial advisors.