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Colliers International

colliers.com · Office, coworking & real estate · Operations

Colliers International Group Inc., commonly known as Colliers, is a prominent global professional services and investment management firm specializing in commercial real estate. Headquartered in Toronto, Canada, Colliers operates through three main business areas: Commercial Real Estate, Engineering, and Investment Management.

Company facts

Founded1976 (50 years)
Market standingPublicly traded (NASDAQ: CIGI)
Employees24,000
HeadquartersToronto, Canada
Trusted networks on Proven3 investor, bank and government networks offer Colliers International to their members

Company facts from Apollo.io company data. Network, offer and redemption data from the Proven platform. A Proven Score is published once publicly named clients are verified with sources.

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Source: Proven platform data, public records and vendor websites. Vendors cannot pay to change a score. Methodology. Updated 2026-10-21.