"While the firm has been collaborating with Colliers International for over a decade, this integration will allow us to more seamlessly tie into the vast array of services which Colliers International provides on a global basis," says chairman David Kahnweiler "Local, national and worldwide clients will continue to benefit from our local expertise and market knowledge as well as our global market coverage and relationships."

A price tag on the investment was not disclosed.

Colliers B&K was started in 1947 and now has a management portfolio that totals 50 million square feet in the Chicago-land area. The company has more than 200 professionals. Colliers International has said its investment will not result in any personnel or management changes within Colliers B&K.

Colliers International has more than 15,000 employees throughout 61 countries. Jointly Colliers International and its affiliates manage more than 1.5 billion square feet of property. Colliers International is a subsidiary of FirstService Corp.

"Colliers International is focused on accelerating success for our company and, most importantly, for our clients," says Doug Frye, president and CEO of Colliers International. "Enabling our new Chicago hub to enhance client service in a highly collaborative organization is a critical component of our vision for the company."