AirTight Mechanical Inc. (Charlotte, N.C.) was named one of the top 50 fastest-growing privately held companies by the Charlotte Business Journal.

Brady (Greensboro, N.C.) added Chris Williams as a technical contract administrator.

Garrison Mechanical Air Conditioning & Refrigeration (Pembroke Pines, Fla.) named Wayne Pooran as a project manager.

Publication date: 12/13/2010