Ironworkers Local 15 located in Hartford the Capital City of Connecticut, was chartered in March of 1902 by the Ironworkers International. For over a 100 plus years, we have helped build the Capital Region and the 103 cities and towns in the surrounding area. Local 15 currently represent over 500 highly skilled union-trained Ironworkers. Local 15 is a mixed local, so many of our members can work in the different facets of our trade.