Cabell founded Investors Security Company, Inc. in August 1964. He was a four year veteran of the brokerage industry at the time with experience in a regional wirehouse. He attended both Randolph Macon and the University of Virginia.
Cabell was on the forefront tof the independent contractor business model. He was the portfolio manager for Old Dominion Investors Trust, Inc., a mutual fund, and served on its board of directors. Cabell was one of the founders of Nansemond Suffolk Academy and served as its president for many years. He has been on the board of Paul D. Camp Community College, and is a former member of the corporate board of Suffolk Center for Cultural Arts.
A lifelong resident of Suffolk, Cabell says, "The secret of success in business is being there- every day."