Real estate people

Henneman Engineering has hired Gary Billington as vice president of business development. Billington previously worked for 11 years in the power industry as a transmission line project engineer, apparatus engineer, and sales engineer, and spent 12 years working in the communications industry in New Berlin. He most recently was executive vice president of sales and marketing at Milwaukee-based Plunkett Raysich Architects. Billington is based in Henneman’s Milwaukee area office at 175 N. Corporate Dr., Brookfield.

Wauwatosa-based Irgens recently added MaryCatherine Hunefeld as an assistant property manager and Betsy Gleason as an asset management and lease administration coordinator. Gleason previously worked for Irgens from 2004-09.

West Allis-based Triad Construction Inc. recently hired Alan Peschl as a project manager. He has 18 years of construction industry experience.

Milwaukee-based Colliers Internation|Wisconsin recently added Ryan Frederick as an associate broker, Kristin Komassa as a croporate services team coordinator, Jennifer White as a real estate assistant, Emily Poblocki as a property management assistant and Tim Kilas as a property management assistant. Komassa has 10 years of commercial real estate experience. White has 15 years of experience in commercial and residential real estate.

Protech, a division of Milwaukee-based Inland Companies, recently hired Erich Roeder as a maintenance technician, John D’Amato as an HVAC technician and Justin Brandt as an electrical apprentice.