Graycliff Partners completed its acquisition of La Porte-based Boss Industries.

Graycliff manages private equity and credit investments in lower middle-market companies primarily in the United States. The companies are typically in niche manufacturing, value-added distribution and industrial services. Graycliff is based in New York City.

D.A. Davidson served as financial adviser to Boss Industries, a portfolio company of Wynnchurch Capital.

“The Davidson team did an excellent job telling our story throughout the sale process,” said Todd Hudson, Boss Industries CEO, in a press release. “We are thrilled to partner with Graycliff to continue providing high quality products and exceptional service to our customers.”

Boss Industries provides air and gas compression and power systems for vehicle mounted and adjacent applications. Founded more than 35 years ago, it serves the municipal, utility, infrastructure, building products and rail end markets.

“Boss has built an exceptional business,” Eric Stetler, D.A. Davidson managing director and head of M&A, said. “We greatly appreciated the opportunity to advise Boss and Wynnchurch through the sale process and are excited to see Boss’s continued success through its partnership with Graycliff.”