J. Donald Tierney

American Bar Association provides legal services. It provides law school accreditation, continuing legal education, legal information and other services to assist legal professionals. The firm has members which include judges, court administrators, law professors, and non-practicing attorneys. The company was founded on August 21, 1878 and is headquartered in Chicago, IL.

Piper Aircraft, Inc. provides single and twin-engine aircrafts. The single-engine M-Class series – the M600, M500, M350, and Matrix – offers businesses and individuals elegant performance and value. The Twin Class Seneca V and Seminole balance proven performance, efficiency, and simplicity in twin-engine aircraft. The Trainer Class Archer TX/LX, Archer DX, Arrow, Seminole and Seneca V aircraft form the most complete technically-advanced line of pilot training aircraft. The company was founded by William T. Piper in 1937 and is headquartered in Vero Beach, PA.

Cozen O'Connor provides legal services. It offers services in areas of business law, including mergers and acquisitions, private equity, venture capital, IPOs, corporate governance and compliance, insurance corporate and regulatory matters, securities, tax, real estate, bankruptcy, intellectual property, health law, public finance, employee benefits, trust and estates, and energy, environmental and public utilities. The company was founded by Stephen A. Cozen and Patrick J. O´Connor in 1970 and is headquartered in Philadelphia, PA.