For Over 30 Years, Our Team at Dannenbaum Llc Has Taken Pride in Providing Equipment for Power and the Oil and Gas Industry. We Are Positioned With an Experienced and Professional Sales Team That Has Proven Great Results. Dannenbaum Llc Evolved From the M.n. Dannenbaum Company, That Was Started in 1921. The Founder Maurice Dannenbaum, a University of Rice Graduate, Put a First-class Engineering and Sales Team to Promote Valves, Actuators, Pumps, Ball Joints, Expansion Joints, Strainers, Filters, and Steam Traps.