BROOMFIELD - Data-tracking company Engineered Data Products LLC plans to grow after buying EnaSys LLC, a similar data-tracking company in Charlotte, North Carolina.

Financial terms of the deal were not disclosed.

Broomfield-based Engineered Data Products plans to add three or four new workers to its 36 local workers this year as a result of the purchase, Todd Klug, division manager of Engineered Data Products LLC, said in an email. All company orders will be manufactured and shipped from Broomfield, Klug said. EnaSys offices are expected to remain in North Carolina.

Engineered Data Products tracks office and medical data, according to a company press statement. EnaSys uses a radio frequency tracking system to handle computer data center management. Enasys products are used in data centers around the world, including those at NASA, General Mills Inc. (NYSE: GIS) and Tate & Lyle plc (LSE: TATE), a London-based agribusiness company.

"This acquisition is an integral step in helping EDP LLC become the leading (radio frequency) tracking provider in Colorado and the U.S.," Klug said in the email.

Engineered Data Products plans to increase 2013 sales by 15 percent over 2012 sales, Klug said, without giving specific financial revenue numbers.

Engineered Data Products is owned by Celeritas Group LLC of Colorado, also based in Broomfield. The company has been in business for more than 30 years.