The TORONTO REAL ESTATE BOARD is a not-for-profit corporation founded in 1920 by a small group of real estate practitioners. ... Today, as Canada's largest real estate board, TREB serves more than 50,000 licensed real estate Brokers and Salespersons in and about the Greater Toronto Area. TREB is the collective voice for both its commercial and residential REALTOR® Members and operates under the direction of an elected voluntary Board of 16 Directors. read more