Trimble Inc. plans to add hundreds of employees in the Denver metro area after the GPS technology company’s new building is completed in Westminster next year.

The Sunnyvale, California-based company (Nasdaq: TRMB) plans to hire to fill the new building. Few, if any, will need to be relocated because the Denver area is the best place to attract the kind of workers it needs, said Robert Painter, Trimble’s CFO.

“It reflects the growth we’re seeing in our underlying business. It’s really an organic growth story,” Painter said. “We’ve found this market to be attractive as a pace to find high-quality people.”

Trimble’s second building will double its presence in Westminster’s Westmoor office park, giving it room to grow to about 1,100 workers and making the campus the international company’s largest employment site.

The core elevator shafts of the new building have gone up on company-owned land in recent weeks. The new building, slated to be completed in late 2018, will be a near replica of Trimble’s neighboring 125,000-square-foot building at 10368 Westmoor Drive.

That building was completed four years ago. More than 500 people work there today.

Trimble makes hardware and software that put global positioning information and land-surveying technologies to use in navigation, civil construction, engineering, agriculture, transportation and other industries.

In Westminster, it focuses on research and new product development for the agriculture, civil construction and geospatial/site surveying industries. Trimble’s management of those lines of business is mostly there, too.

The new building will expand on those businesses, said Eric Harris, Trimble’s head of strategic communications.

Contractors working on the new Trimble building are using more than 50 technologies the company makes for engineering, surveying and construction, he said.

Once it is complete, Westminster will have Trimble’s largest concentration of employees but not its largest facilities. The company employs 9,200 people worldwide and has manufacturing sites in California, Sweden, Germany and Japan.

The company also has offices in the Inverness office park in the Centennial area and in Boulder.

Last month, it acquired 10-4 Systems, a Boulder-based software company that makes freight tracking technologies.

Trimble’s running out of room for employees in Westminster now and has workers using shared desks and working some from home, Painter said.

The company will have room to add dozens more employees after its new building is complete. It plans to sublease the top floor of the new building to another company at first.

Trimble owns enough land in Westminster that it could build more there, should the company’s growth warrant future expansion.

“Colorado has proven to be a strategic element in our U.S. operations since we opened our initial Westminster office in 2000 and completed the first building project in 2013,” said Steven Berglund, Trimble president and CEO.

The general contractor on the new building is JE Dunn. Denver-based OZ Architecture is the lead engineering firm.