GSE Systems, Inc. revenue for the last year amounted to 45.04 M USD, the most of which — 31.79 M USD — came from its highest performing source at the moment, Engineering, the year earlier bringing 29.92 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought GSE Systems, Inc. 44.04 M USD, and the year before that — 46.62 M USD.