Posted in Business & Finance, Government & Military, Information Technology, Organizations, Schools & Education, Science, Security DSEC stands for Dyal Singh Evening College (India) DSEC stands for Delaware Solar Energy Coalition (Newark, DE) DSEC stands for Drug Safety Executive Council (Needham, MA) DSEC stands for Double Stance, Eyes Closed DSEC stands for De Smet Engineers & Contractors (Belgium) DSEC stands for Daewoo Ship Engineering Company