Daniel Lees Colliers International Colliers professionals provide a full range of services to real estate occupiers, owners and investors worldwide. Services include strategic advice and execution for property sales, leasing and finance; global corporate solutions; property, facility and project management; workplace solutions; appraisal, valuation and tax consulting; customised research; and thought leadership consulting. Colliers professionals think differently, share great ideas and offer thoughtful and innovative advice that help clients accelerate their success. Founded in Australia in 1976, Colliers International is the largest locally formed real estate services firm with professionals worldwide.