David L. Brennan

121 Management LLC provides education-management and school-operation services. The firm contracts and assists non-profit corporations that hold charters or see a need for a charter school in their community. It operates 15 schools in three states under the auspices of two separate educational ventures. The company was founded by David L. Brennan in 1998 and is headquartered in Akron, OH.

Brennan, Manna & Diamond LLC is an entrepreneurial law firm based in Akron, OH. The firm specializes in pro business law, healthcare law, construction law, and commercial litigation. The private company has subsidiaries in the United States and is nationally recognized for its expertise in healthcare law and construction law. It was founded in 2000 by Jack T. Diamond, David L. Brennan, and Anthony S. Manna, with Jack T. Diamond serving as the CEO since then.