Gray Rock Professional Alliance, LLC Gray Rock Professional Alliance was founded in 2002 by Dr. Robert Conn as a forum in which highly motivated professionals could collaborate and pursue their career objectives. The Gray Rock alliance brings together scientists, engineers, mathematicians, and computer practitioners to solve a variety of complex technical problems for its clients. Our staff has expertise and the proven ability to deliver solutions for custom computer programming, statistical analysis, modeling and simulation, and scientific analysis ( including empirical measurements and field tests ). We can perform work at one of our sites, at your facility, or in the field. Our main office is located in Ellicott City, Maryland, just minutes from the historic old-town. Please don't hestitate to contact us with your questions or needs.