CenterOak Partners LLC, a Dallas-based private equity firm, has appointed Mark Langer as a managing director.

Langer joins the firm with 20 years of middle market transaction experience and will provide senior support across the firm’s investment process including deal origination, execution, and value-add strategies. In his time before CenterOak, Langer served as a managing director with Heartwood Partners for 10 years.

“Mark is a seasoned and accomplished investment professional who has a strong track record and a long history of thematic investing and value creation that align seamlessly with CenterOak’s investment strategy,” said Randall Fojtasek, CenterOak’s CEO & co-managing partner. “Importantly, he has extensive investment and operating expertise in CenterOak’s three core investment sectors, industrial growth, consumer, and business services. We are thrilled that Mark has chosen CenterOak to continue his career as a leader of successful middle market portfolio investments.”