Milwaukee-based The Dieringer Research Group Inc. plans to move from 3064 N. 78th St. to Brookfield. The company recently purchased a 26,000-square-foot office building at 180-200 Bishops Way, Brookfield, for $1.6 million from Burr-Milwaukee Properties. The property has an assessed value of $1.4 million, according to Waukesha County records. John Czarnecki of Apex Commercial represented Burr-Milwaukee Properties and Charlotte Zurn of MLG Commercial represented Dieringer in brokering the sale. The company has been located in a 12,000-square-foot building near 78th Street and Burleigh for more than 30 years. "We needed more space," said vice president and treasurer Robert Dieringer Jr. "(The Brookfield location) is very beautiful, very tranquil, a good location for a business." The company will occupy about 15,000 square feet of space in the Brookfield building and will lease out about 5,000 square feet. In addition, two existing tenants, Unisys and Laris Rehabilitation, will continue to occupy space in the building. "As we grow we will expand into the entire building," Dieringer said. The company has about 125 employees, 50 full-time and 75 part-time call center employees. The company plans to move in October and will sell the Milwaukee building, with Zurn’s assistance.