Most of the KONE Tech guys are Union, not all. I worked for KONE Tech Support when I left Otis in 1989. Retired with 48 actual, 58 credited, years. Was a 45 hour adjuster with Otis. One of the last jobs I adjusted for Otis was the 70 story hotel in Detroit, Renaissance Center. Worked in every state in the USA but 2, Alaska, and Vermont, Plus worked in some foreign countries.