Private equity firm, Wynnchurch Capital, has merged its portfolio company, Indiana Limestone Holdings, a producer of natural dimensional limestone, with Polycor Holding, a producer of dimensional stone. Financial terms were not disclosed. "Indiana Limestone represented an opportunity to rejuvenate a company with a strong brand, broad distribution, and differentiated products. We are very proud and appreciative of the team’s leadership and accomplishments; significant value creation was driven through operational excellence, investment in new products, and an improved go-to-market strategy," John Hatherly, Wynnchurch Founder and Managing Partner.