GSE To Present on Modeling and Simulation for Power Plant Safety and Training at PowerPlantSim’15

Four experts from global energy services solutions provider GSE Systems, Inc. (NYSE MKT: GVP) (“GSE” or the “Company”) will be presenting papers on modeling and simulation technologies for power plant safety and training at the 2015 Power Plant Simulation Conference (PowerPlantSim’15). The conference will be held January 26-28 at the Omni Jacksonville Hotel in Jacksonville, Fl. GSE experts also will be providing live demonstrations of the Company’s simulation solutions for power plants at booths 3 and 4 during the event.

Mike Fendley, VP, will kick off the conference for GSE with a presentation, Next Generation Modeling and How You Get There, on Monday at 11:30 a.m. Jamie Camp, Program Manager, will then discuss his paper on a recent project with the Electric Power Research Institute at 2:00 p.m. Scott Zepplin, Program Manager, will also present his paper, Things to Know Before You Implement a Severe Accident Model, at 4:15 p.m. that same day.

Tuesday will see another presentation from Zepplin at 10:30 a.m., How to Prepare Your Electrical Models for Extended Blackout. George McCullough, VP, will then deliver his paper, Severe Accident Solution for Training and Emergency Preparedness, at 11:30 a.m. Fendley will wrap up the conference for GSE on Wednesday with a discussion of the Mochovce unit 3 and 4 full-scope simulator project at 8:30 a.m.

Conference attendees can visit GSE at booths 3 and 4 during the show to see live demonstrations of the Company’s simulation solutions.

PowerPlantSim’15 is sponsored by the Society for Modeling & Simulation International (SCS). For more information on this event, go to http://scs.org/powerplant.

About GSE Systems, Inc.

GSE Systems, Inc. provides performance improvement solutions to the energy and process industries. We improve human performance though turnkey training, unique visualization and simulation applications, and our staff of instructors, as well as plant improvement through our engineering expertise and use of technology to improve plant design, commissioning and operations. The Company has more than 300 employees and over four decades of experience as well as more than 1,100 installations and hundreds of customers in over 50 countries spanning the globe. GSE Systems is headquartered in Sykesville (Baltimore), Maryland, with offices in St. Marys, Georgia; Cary, North Carolina; Huntsville, Alabama; Chennai, India; Nyköping, Sweden; Stockton-on-Tees, UK; Glasgow, UK; and Beijing, China. Information about GSE Systems is available at www.gses.com.

Forward-Looking Statements

We make statements in this press release that are considered forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934. These statements reflect our current expectations concerning future events and results. We use words such as “expect,” “intend,” “believe,” “may,” “will,” “should,” “could,” “anticipates,” and similar expressions to identify forward-looking statements, but their absence does not mean a statement is not forward-looking. These statements are not guarantees of our future performance and are subject to risks, uncertainties, and other important factors that could cause our actual performance or achievements to be materially different from those we project. For a full discussion of these risks, uncertainties, and factors, we encourage you to read our documents on file with the Securities and Exchange Commission, including those set forth in our periodic reports under the forward-looking statements and risk factors sections. We do not intend to update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise.