LANCASTER, Pa., May 22, 2019 -- Swing Kingdom, the nation's largest manufacturer of vinyl playground equipment, and Atlas Molding, a niche leader in the plastic rotational molding ("rotomolding") industry, announced today that they have been acquired by PennSpring Capital (PennSpring). PennSpring is a progressive lower middle market private equity firm focused on companies with strong foundations and proven leadership, excelling within sizeable industries typified by high fragmentation. PennSpring has now made eight investments in the last ten months, including five majority investments.