About Us

Cardinal Engineering is home to scientists and engineers who have spent their careers immersed in all things nautical.  Our technical staff has participated in the development of flagship programs across the spectrum of ships, submarines, offshore platforms and coastal systems for military and civilian agencies, as well as industry partners large and small. 

The cornerstone of our capabilities is in the research and development program phase, where breakthrough technologies, innovative application of engineering materials, and ingenious design intersect to create an opportunity for more effective and efficient systems.  While this germinating phase of the engineering spiral is critically important, the development of these ideas into real life systems is even more challenging, and is where Cardinal engineers and scientists provide the greatest value.  It is our ability to field successful systems that provides the discriminator between merely conducting interesting experiments and enabling game-changing mission capability.

Whether establishing critical requirements, developing technology or leading multi-disciplinary product teams, Cardinal is providing critical expertise to programs that ensure the nation’s security and economic stability.

Roger Bagbey 

Bagbey 2014 65 3Roger Bagbey has over 30 years of experience in systems engineering and management on programs for U.S. Navy ships and submarines, as well as other marine systems. As both a U.S. Government program manager and industry executive, he has led a number of major programs involving electro-mechanical systems designed to operate in severe marine environments.  The founder and President of Cardinal Engineering, Mr. Bagbey oversees engineering management and design projects, working with the Department of the Navy, the Department of Energy, and national laboratories, as well as numerous prime contractors to the Government.  He holds a Bachelor of Science degree in Civil Engineering from Iowa State University.

John McCullough

McCullough 65 3John McCullough has over 30 years of experience in program management and systems engineering on U. S. Navy ships and ship systems, with a depth of expertise in submarines and the undersea warfare domain.  In prior corporate management positions, Mr. McCullough executed operations and business management responsibility for an organizational unit with greater than $200M of annual revenue from DOD, DHS, and DOT federal agency programs.   He also has experience with research and development projects delivering technology solutions for Navy programs and was a Submarine Line Officer in the U.S. Navy with Nuclear Engineering qualifications.  As the Chief Operations Officer for Cardinal Engineering, Mr. McCullough oversees delivery of engineering and technical services to federal agency customers and commercial shipbuilders.  He holds a Bachelor of Science degree in Chemistry from the College of William and Mary, a Master of Science degree in Chemical Engineering from the University of Virginia and a Master of Science degree in Electrical and Computer Engineering from George Mason University.

John Hering 

John Herings

Applied Physics Group Manager John Hering has over 25 years of experience leading engineering and technology projects in the Navy Ship and Submarine Design industry.  Mr. Hering specializes in ship structures, shock qualification and design, finite element analysis, and structural composite technologies.  Having supported multiple Navy projects in roles varying from analyst, to design engineer, to Program Manager, Mr. Hering offers a broad knowledge and understanding of all facets of the engineering design cycle.  As a Principal Engineer at Cardinal Engineering, Mr. Hering supports and manages engineering design projects for the Department of the Navy and various Industry partners.  He holds a Bachelor of Science degree in Mechanical Engineering from the University of Virginia.

Brian Lounsberry 

Brian LounsberryBrian Lounsberry, Manager of the Power & Energy Group, has over 15 years of experience in the areas of Marine Engineering, Renewable Energy, and Research, Development, Test & Evaluation.  He has extensive hull, mechanical and electrical systems engineering experience supporting the U.S. Navy on various ship trade studies and concept designs.  As a Senior Engineer at Cardinal Engineering, Mr. Lounsberry manages and supports projects in the energy sector – primarily focused on ocean energy and shipboard electrical power.  He is a Project Management Professional (PMP) and holds a Master of Science degree in Engineering Management from George Washington University and a Bachelor of Science degree in Mechanical Engineering from Bucknell University.

Guy Grater


Over the past 30 years, Guy Grater has formulated, managed and successfully executed advanced technology development programs for both the Naval Sea Systems Command and the Office of Naval Research.  His levels of responsibility have steadily increased from project engineer to technical team leader to program manager to corporate executive. He has directed all aspects of a $20M business unit, including engineering and program execution, direct customer relations, personnel and facility resource management, budgeting and business development.  As Cardinal’s Principal Program Manager, he manages business-significant programs while providing leadership and guidance to Cardinal Engineering initiatives to ensure focus on customer needs and alignment with business development activities.  Guy received a Bachelor of Science degree in Electrical Engineering from the Pennsylvania State University in 1985.