Meet Our Leaders

Clarence Mingo

Clarence Mingo

Chief Executive Officer
(614) 418-6091

Clarence Mingo’s life and career have been about service to his country and his community.

A veteran of the United States Army, Clarence answered the call to service and served honorably with the coalition forces that liberated Kuwait during the 1991 Persian Gulf War.

Upon his return, Clarence attended The Ohio State University where he earned his undergraduate and law degree in a little more than five years. He then re-focused his commitment to service to his community as an attorney in private practice, helping to protect those citizens most in need. Franklin County courts frequently appointed Clarence to serve as a Guardian ad Litem (child advocate), representing the interests of children in abuse, neglect and divorce cases.

He also enlisted in the Legal Aid Society of Columbus’ Neighborhood Service’s project. In this capacity, Clarence was one of three attorneys who represented indigent county residents with legal issues involving housing, public benefits, civil protective orders, and custody matters. He also fought for funding in an effort to expand and further develop the project’s reach and influence on the indigent population in Columbus, Ohio.

In 2007, the late Chief Justice of the Ohio Supreme Court, Thomas J. Moyer, appointed Clarence as a commissioner in the Ohio Court of Claims. Clarence served as one of seven commissioners with statewide appellate jurisdiction in victims of crime cases.

In 2009, Clarence was appointed as Franklin County Auditor. In 2010, Franklin County voters awarded him a full four-year term. In 2011, Governor John Kasich appointed Clarence to serve on Ohio’s Lottery Commission. In 2014, Auditor Mingo was featured by MSNBC as a “Rising Leader” in the state of Ohio.

As Auditor, Clarence aided by a support staff of nearly 200 ensured that Franklin County residents received uncommon public service in fiscal, real estate and consumer protection services. Additionally, Clarence served as the Chief Administrator of Franklin County’s Data Center and oversaw the agency’s modernization and introduction to cyber security and project management.

Clarence and his wife Angela married in 1992. They are the proud parents of Annalise and Ava Mingo. The family resides in New Albany, Ohio and look forward to greater opportunities for service.

Gregory L. Williams

Vice President & General Counsel
(614) 418-6091

Gregory L. Williams is an attorney with a unique combination of significant experiences in the fields of energy, transportation, and communications technology and minority-business development.

After completing a clerkship in the office of the Governor of Ohio, Greg served a legal aide to a commissioner at the Public Utilities Commission of Ohio, where he provided legal and policy counsel about utility issues, including energy, water, transportation, and telecommunications. After his time at the Commission, he began work as an attorney at Whitt Sturtevant, LLP, a law firm that specializes in regulatory, trial, and appellate practice for regulated utilities and retail energy suppliers. There, he represented and advised natural gas, water, and electric utilities, as well as competitive retail electric suppliers, primarily in regulated proceedings before the PUCO.

After several years in private practice, Greg was asked by the Governor to return to the public sector to aid the state with its efforts to improve and increase minority business development. So he left the firm to serve as Deputy Director of the Ohio Department of Administrative Services (DAS) and as the State of Ohio’s Equal Employment Opportunity (EEO) Coordinator. In these capacities, Greg oversaw several small business development and procurement preference programs, including the State of Ohio’s Minority Business Enterprise (MBE) program. During his administration of the MBE program, the state achieved its procurement goals for the first time since the program began in 1980, making Greg the first State EEO Coordinator in Ohio’s history with this accomplishment. Greg went on to lead the state to achieve the program’s goals for the next two consecutive fiscal years, which represented over $830 million in contracts and thousands of jobs created for minority-owned businesses. Greg also oversaw the successful administration of the state’s Encouraging Diversity, Growth, and Equity (EDGE) Business Development program, through which over $981 million in state contracts and subcontracts were placed with historically underutilized businesses. He also implemented the state’s first preference program for Veteran-friendly Business Enterprises (VBE).

A native of Canton, Ohio, Greg received his bachelor’s degree from The University of Akron, and later his law degree from The Moritz College of Law at The Ohio State University. He’s licensed to practice law in the State of Ohio and the U.S. Federal District Court for the Northern District of Ohio. He’s earned a Lean Six Sigma Black Belt and certificates of completion in the National Association of Regulatory Utility Commissioner’s (NARUC) Regulatory Studies Program at Michigan State University’s Institute of Public Utilities and NARUC’s Utility Rate School. He’s also served as the Secretary of the Board of Directors for the Central Ohio African-American Chamber of Commerce.