Watermill Group is a strategy-driven private investment firm based in Boston that has closed over 60 transactions in its 34 year history. Superior and Fine Tubes are both leading manufacturers of customized small diameter tubular products for a variety of desirable end markets. They fabricate seamless and welded tubing from high-value specialty alloys including stainless steels, titanium, and high nickel alloys. Superior’s operations are in Collegeville, PA while Fine Tubes is located in Plymouth, U.K. Both companies are owned by Superior Group, Inc., a holding company with controlling positions in a variety of manufacturing businesses.