Judging was based on four vital characteristics, namely management capabilities, organizational competency, customer references and size and growth. Colliers was placed 17th by the IAOP on its Global Outsourcing 100 list. This list includes 75 large and 25 smaller firms. The rankings include a range of sublists and Colliers succeeded in securing added awards, such as being the leader in the number of global centers, winners for multiple years, best 10 companies, best 10 leaders and best 20 leaders. The rankings are calculated by an independent panel of judges.
Colliers, one of the global leaders in commercial real estate services, employs in excess of 13500 professionals located in 482 offices across 62 countries. It is a subsidiary of FirstService Corporation and offers services to global owners and investors, real estate users, mortgage banking and many others.