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

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

Garrison Mechanical Air Conditioning & Refrigeration(Pembroke Pines, Fla.) namedWayne Pooranas a project manager.

Publication date:12/13/2010