Sheila Duffy is the Founder and Chief Executive Officer (CEO) of Greystones Group. With over 20 years of management experience with Fortune 500 companies, government agencies and startups, Ms. Duffy brings a wealth of strategic expertise in a variety of communications and technology disciplines. Prior to founding Greystones, Ms. Duffy held executive positions at Verizon (Bell Atlantic) as well as several Internet startups. Ms. Duffy has served on the Board for the Ovarian Cancer Research Fund Alliance. Ms. Duffy has also served as an adjunct professor of communications at George Mason University.

Ms. Duffy graduated with a B.S. from the College of William and Mary in Virginia and holds an M.B.A. from George Washington University in Washington, D.C.

John Mark Suhy is the Chief Technology Officer (CTO) of Greystones Group. Mr. Suhy brings over 20 years of enterprise architecture and software development experience with leading agencies including FBI, Sandia Labs, Department of State, US Treasury and the Intel community.  Mr. Suhy authored the Government Edition of Neo4j, the world’s leading graph database supporting Artificial Intelligence/Machine Learning and Natural Language Processing. Mr. Suhy is a frequent speaker at prestigious events such as RSA.

Mr. Suhy holds a B.S. in Computer Science from George Mason University in Virginia.