He left Lewis Gilman & Kynett and in 1989 he founded Tierney Communications which Tierney built into one of the largest public relations and advertising firm in the Mid Atlantic.
He left Lewis Gilman & Kynett and in 1989 he founded Tierney Communications. Absorbing an advertising business in 1994 Tierney built the company into one of the largest public relations and advertising firm in the Mid Atlantic.