TerraCRG | 4,069 followers on LinkedIn. In these uncertain times, one thing is certain: Nobody Knows Brooklyn like TerraCRG | TerraCRG is the only commercial real estate brokerage firm focused exclusively on the Brooklyn market. For over 16 years, TerraCRG has been at the center of the transformation of Brooklyn, becoming a true market leader throughout the process. The firm has handled over three billion dollars’ worth of transactions in Brooklyn.