The Sterling Group, a private-equity firm based in Texas, completed the sale of its portfolio company, Stackpole International, to funds managed by Crestview Partners. Sterling had acquired Stackpole through a corporate carve-out from Tomkins in August 2011. Headquartered in Ancaster, Ontario, Stackpole is a manufacturer and supplier of highly engineered oil pumps and powder-metal components to automotive original equipment manufacturers. EBITDA (earnings before interest, taxes, depreciation and amortization) has increased by more than 80% over the last two years, outpacing domestic automobile production growth. According to Stackpole, the company is well positioned for continued growth based on the progress it made with Sterling.