Colliers | 1,061,472 followers on LinkedIn. Accelerating Success | Colliers (NASDAQ, TSX: CIGI) is a global diversified professional services and investment management company. Operating through three industry-leading platforms – Real Estate Services, Engineering, and Investment Management – we have a proven business model, an enterprising culture, and a unique partnership philosophy that drives growth and value creation. For 30 years, Colliers has consistently delivered approximately 20% compound annual returns for shareholders, fuelled by visionary leadership, significant inside ownership and substantial recurring earnings.