Gibbs and Cox Board of Directors 

Vice Admiral Nanette DeRenzi - Director

Vice Admiral Nanette DeRenzi retired from the Navy in 2015. She was the 42nd Judge Advocate General (JAG) of the Navy, serving as principal military legal counsel to the Secretary of the Navy and Chief of Naval Operations, and the DoD Representative for Ocean Policy Affairs. As the JAG, she led the 2,300 attorneys, enlisted paralegals, and civilians of the global Navy JAG Corps community. She is currently Chief Operating Officer of the Jefferson Consulting Group in Washington, DC, where she oversees administrative and financial functions and the firm’s day-to-day operations. She volunteered her time as Chairman of the ABA’s Veterans Legal Services Commission and Co-Chair of the Secretary of the Navy’s Retiree Council. She is currently a member of the Red Cross Service to the Armed Forces Advisory Board and serves on the board of the National Alliance for Safe Housing, a non-profit dedicated to ensuring that survivors of domestic and sexual violence have access to a full range of housing options.



Mr. Daffan is currently a senior consultant for companies providing services to the Federal Government. Previously, Mr. Daffan was the founder and Chief Executive Officer for AERA Incorporated, an engineering and information technology company. During Mr. Daffan’s tenure with AERA, the company grew from a small start-up company to a $50 million revenue company with nine field offices and over 500 employees. During this period, Mr. Daffan was responsible for the strategic vision and planning to grow the company from a small business into a large company providing high level engineering and information services to the Navy and other federal agencies. From 1993 to 1996, AERA Incorporated was on the INC 500 list of fastest growing private companies in America. AERA was also on Washington Technology’s Fast 50 list for four consecutive years. 


Vice Admiral Sullivan is currently Executive Director of Penn State’s Defense Related Research Units (DRRU) and Applied Research Laboratory (ARL). As director of DRRU, Sullivan oversees and coordinates the research activities of ARL, Penn State’s Electro-Optics Center and ARL’s field offices in Warminster, Pa.; Keyport, Wash.; and Washington, D.C. Prior to this position, Mr. Sullivan was Vice President, American Centrifuge Project, and Chief Engineer at USEC.  He left the U.S. Navy in 2008, retiring with the rank of Vice Admiral. In Mr. Sullivan’s last assignment in the Navy, he served as Commander of the Naval Sea Systems Command (NAVSEA) – the Navy’s largest Echelon II Command).  Under his leadership, the Navy received delivery of 22 new ships, 63 major ship overhauls and more than 140 private sector overhauls.  Before that, he was Deputy Commander for Ship Design, Integration, and Engineering (Chief Engineer) at NAVSEA.


Mr. White is Vice President of Finance and the Chief Financial Officer of Gibbs and Cox, Inc. His entire business career has been at Gibbs and Cox, where he has advanced his career in positions of increasing responsibility. He has held the positions of Cost/Pricing Manager, Financial Accounting Manager, Assistant Treasurer and Treasurer. Mr. White possesses a combination of cost accounting and financial accounting capabilities, which enhances the team he supports. His experience enables him to identify and implement process improvements that control costs, increase accuracy, consistency and efficiency. In his role as Vice President of Finance, Mr. White is responsible for all corporate and Administrative matters. He develops, and is responsible for, a multi-million dollar operating budget, controlling actual costs to budgeted costs.



Mr. Deegan was promoted into the position of President and Chief Executive in June 2016. He joined Gibbs & Cox as the Engineering Group Vice President in April 2013 following a distinguished 28 year civil service career with the US Navy. He holds a BS in Industrial Engineering from Penn State University, and a MS in Engineering from The Catholic University of America. In his naval acquisition career, Mr. Deegan was a member of the Department of the Navy’s Senior Executive Service (SES) for nearly ten years, serving in executive positions in the Naval Sea Systems Command (NAVSEA), Program Executive Office, Integrated Warfare Systems (PEO IWS) and the Assistant Secretary of the Navy Financial Management Budget office. Before his SES tours Mr. Deegan spent much of his career in submarine program management and in 1997 he was selected as a Brookings Fellow and served on Congressman John Murtha’s (House Appropriations Committee – Defense ranking member) personal staff.


Mr. Rick Biben was the Chief Executive and President of Gibbs & Cox, Inc. from 2010 until June 2016. During his tenure, Mr. Biben focused the company towards business growth and diversity. He also led the infusion of new business and infrastructure resource tools into the company. Mr. Biben led the effort to the first acquisition in the company’s history of Donald L. Blount Associates (DLBA). Also during his tenure, the Company developed a robust business pipeline, and he successfully led the organization to winning new business prime contracts and greatly expanding the commercial and shipyard direct marketplace.Mr. Biben is a member of the Partner’s Committee of the Shipbuilders Council of America (SCA), and serves on the SCA Communications Committee and the Dues Committee. Mr. Biben is a member of the Board of Advisors of a charitable organization named Workshop for Warriors. Before joining Gibbs & Cox, Mr. Biben was a Sr. Vice President with Science Applications International Corporation (SAIC) from December of 2006 into August of 2010.


Mr. Argy is an executive consultant in the area of diversified business advisory and accounting services to clients across a variety of industries; including government contracting, technology, manufacturing, real estate, nonprofit organizations, and other service businesses.  Mr. Argy brings over 30 years of experience in this industry.  Prior to joining the Board of Directors of Gibbs & Cox, Inc., Mr. Argy was Senior Partner and National Director for the Center of Government Contracting Excellence at BDO, USA LLP. Prior to this position, he was a founder as well as CEO and President of Argy, Wiltse and Robinson, which he saw evolve from a start-up to the top 100 firms nationally measured by firm revenue.  The firm was purchased by BDO in 2012.  Prior to forming his company, Mr. Argy had a 10 year career with PricewaterhouseCoopers (PWC), where he left as a senior manager specializing in Government Contracting and Technology in their middle market specialty group, Comprehensive Practice Services. 


Vice Admiral Landay retired in 2013 after more than 35 years of Naval service.  His final assignment was as Director of the Defense Security Cooperation Agency (DSCA) where he was in charge of the $400B DoD program responsible for the sale of equipment, defense technologies, training and other services to foreign governments.  His prior assignments included Commanding Officer of the USS AQUILA (PHM 4) and the USS PAUL HAMILTON (DDG 60), Program Executive Officer for the Navy's Littoral and Mine Warfare programs, Chief of Naval Research - where he oversaw the S&T programs for the Navy and Marine Corps, and Program Executive Officer ships - where he was responsible for all non-nuclear shipbuilding programs.  Mr. Landay is a DoD level three certified acquisition professional and an expert in C4I Systems.  He currently serves on the Board of Directors of VT Halter Marine and SAFE Boats International and is a senior Advisor at Avascent International and the Potomac Institute of Policy Studies.