Allen J. Williamson

Wolverine Tube, Inc. engages in the provision of aluminum solutions. It offers friction stir welding, precision machining, fabrication, extruding, and design support. It serves the following industries: aerospace, architecture and construction, marine, hybrid electrical vehicle, rail, truck trailer, and specialty distributors. The company was founded in 1916 and is headquartered in Decatur, AL.

Nuveen Investments, Inc. provides investment management and related services to retail and institutional investors. It offers investment management capabilities across a diversified set of asset classes and investment strategies through its investment management affiliates, including municipal bond, investment grade, global and high-yield bond, floating-rate bank loan, preferred securities, growth equity, value equity, global and international equity, equity income, core equity, equity index, quantitative and enhanced equity, asset allocation, balanced strategies, real asset and commodity. The company was founded by John Nuveen in 1898 and is headquartered in Chicago, IL.