 Local Union 37 search Welcome Local 37 is a mid sized mixed local union representing 1500 members. We represent both Operating Engineers working as heavy equipment operators, mechanics, and welders in the construction industry, and stationary engineers working inside buildings performing all types of facility maintenance. We also have members working in equipment rental houses, shops and quarries. Our mission is to provide a decent living wage, comprehensive health care, pensions and annuities for our members. Our Training Facility has up to date technology for all who wish to enhance their skill levels. Current member? Request a login to access member only information, stay up to date on the latest events and more. Latest News All Future Meetings Until further notice: all future Baltimore Union Meetings will September Meeting Update: Please read Business Manager Holsey’s letter in regard Training School Entrance Training School entrance dedicated to Charles McGee, Jr.. Home Blog About Us Photo Gallery Training Register Log In