Who is ilo local 150? The International Union of Operating Engineers Local 150 is a union representing approximately 23,000 men and women working in a variety of construction and other industries. Our jurisdiction includes Northern Illinois, Northern Indiana, and seven counties in Southeastern Iowa.Where can i join iuoe? Join IUOE HEADQUARTERS INTERNATIONAL UNION OF OPERATING ENGINEERS (IUOE) 1125 17th Street, NW Washington, DC 20036 202 429-9100 MEMBER BENEFITS CONTACT USHow do i contact local 150 care? Building America for Over 100 Years. Welcome to My150 Your interactive community. Meeting all Your needs in one place. Phone (708)485-2273 (CARE) Don't delay, make your appointment today! Check out what’s on the calendar at Local 150 and all affiliated organizations. For fringe benefit information. **PASSWORDS ARE CASE SENSITIVE.Where is the international union of operating engineers located? INTERNATIONAL UNION OF OPERATING ENGINEERS (IUOE) 1125 17th Street, NW Washington, DC 20036 202 429-9100 MEMBER BENEFITS CONTACT US