Meet the Leadership Team
President and CEOBruce O’Brien has more than 45 years of experience in commercial nuclear power production, naval submarine operations, and shipyard work.
Chief Financial OfficerFritz Schlabach is a senior operations and finance executive with more than 25 years of expertise in improving processes, reducing costs, managing cash, and positively influencing stakeholders in the pursuit of strategic solutions and increasing shareholder value.
Senior Vice PresidentGary Cavanaugh has more than 41 years of experience in utility and commercial nuclear power production.
Senior Vice PresidentMike Peckham has more than 47 years of naval and commercial nuclear power experience. He has been a senior nuclear and project management executive with extensive experience in North American power generation.
Senior Vice PresidentMr. Ridenoure has over 40 years leading Commercial Power Plants (NPP) operations. He held thee assignments as Chief Nuclear Officer (CNO) and three assignments as Senior Reactor Operator (SRO) on Westinghouse and Combustion Engineering PWR’s as well as a GE BWR-6.
Vice President, Safety CulturePhil Chase has more than 36 years of experience in nuclear power operations, including both naval and commercial operations.
Vice President West Coast OperationsDennis Hansen has more than 38 years of nuclear experience providing leadership in operations, outage and work control management, maintenance, engineering, and performance improvement.
Vice President, Communications & OutreachSally White has more than 25 years of business, strategy and marketing experience in providing results-based solutions to commercial, DOD/DOE, nuclear power, utility EP&C’s and other high-reliability organizations. She has held executive positions in management, business development, marketing and sales.
Meet the Client Services Team
Dymaris (Dee) Bradley
Director Quality Documents
Dee Bradley has more than 25 years of commercial and DOD/DOE nuclear power experience.
Hardy (Trip ) Farris
Sr. Director of Operations
Mr. Farris has over 30 years in the operation, support, and management of Commercial Nuclear and Natural Gas Power Plants.
Vice President, Regulatory RecoverMark Floyd has more than 34 years of nuclear experience ranging from hands-on technical work through senior manager assignments.
Director, Performance Improvement and AnalysisFrederick Forck has more than 35 years of commercial nuclear experience, including the areas of performance improvement, cause analysis, quality assurance, and training.
Director, Projects and Work ManagementCarl Kuester has more than 37 years of experience in nuclear power operations, including both naval and commercial operations.
Gaston (Mike) Riva
Director, Plant SupportGaston Riva has 29 years of experience in nuclear power plant engineering, work management, maintenance, and regulatory recovery.
Chief Engineer, Director of EngineeringAhmad Shahrpass has more than 37 years of experience in the nuclear power industry, including plant design, analyses, engineering, construction, operation and maintenance support, and project management.
Director Projects and Maintenance
Dave Voeller has more than 45 years of naval and commercial nuclear power experience.
Director, Operations SupportSteve Wackenstedt has more than 42 years of experience in nuclear power operations, including both naval and commercial operations.
Assistant Corporate ControllerJanie Bailey has been with Marathon since 2006. She has more than 37 years of accounting experience.
Payroll and Benefits AdministratorMichelle Rosenau joined Marathon in the spring of 2016. She has more than 12 years of payroll and accounting experience in a high-volume corporate environment.
Payroll and Benefits AdministratorBrenda Taghizadeh joined Marathon in January 2018. She has more than 13 years of experience in payroll and human resources.