GSE Systems, Inc. is a provider of engineering services and technology, staffing, and simulation software to clients in the power and process industries. Its segments include Engineering and Workforce Solutions. Engineering segment primarily encompasses its power plant high-fidelity simulation solutions, technical engineering services for American Society of Mechanical Engineers programs, power plant thermal performance optimization, and interactive computer-based tutorials/simulation focused on the process industry. It also includes various simulation products, engineering consulting services, and operation training systems delivered across the industries its serves primarily in the nuclear, fossil fuel power generation and the process industries. The Workforce Solutions segment provides specialized, technical talent and specialty services throughout the energy, engineering, and adjacent industries including construction, government, infrastructure, environmental, and manufacturing.