Sentry Consulting Group Categories Government - Contractor 99 Skipjack Rd #1 Prince Frederick MD 20678 (703) 520-5560 Send Email Visit Website About Us We provide IT services to the Federal government. Rep/Contact Info Joseph Won × Joseph Won President and CEO Phone: (703) 520-5560 Cell Phone: (571) 455-0059 Send an Email Share × Print Email Facebook Twitter LinkedIn Tell a Friend ×