Koll Buys Kansas City Property-Management Firm : Acquisition: The purchase by the Newport Beach-based company is its third this year in the real estate services industry.

Koll, continuing to increase its national presence as a major real estate services company, said Monday that it has acquired one of Kansas City’s oldest property-management and leasing firms.

In buying Jones & Co. for an undisclosed sum, Koll doubled the amount of real estate it manages in the Kansas City area from 2 million square feet of commercial and industrial space to more than 4 million square feet. The Jones management team and employees will remain intact.

The purchase is Koll’s third this year.

Last month, it acquired two divisions of Liquidity Financial Group, a real estate services company in Emeryville, and bought CBS Investment Realty Inc., a Phoenix property-management company.

In addition, Koll bought a half interest last month in Indo Pacific Property, one of the largest real estate firms in Indonesia, and formed its Koll Asia Pacific division to provide corporate advice and property-management services throughout Asia.

Koll, like other large real estate companies, has been on a buying binge as competition has increased among real estate service companies. Most acquirers are trying to create larger organizations or a more diverse company capable of providing a wider array of real estate services, said William Rothe, Koll’s president. Koll is attempting to do both, diversifying its activities as it grows larger.

Koll manages more than 150 million square feet of commercial and industrial space in more than 280 cities nationwide. The combined value of property it manages is more than $11 billion.