Advocate. Advance. 3 STA STA celebrates over 57 years of successful representation of union subcontractors in New York. Our mission to foster our members’ opportunities for economic growth is exemplified in our commitment to provide industry access, deliver meaningful advocacy services and advance our members’ abilities, expertise and knowledge within a changing construction industry. Advocate. Since our inception, STA advocates for its building trades members with the commercial construction industry, the public and private sectors and the local communities in which our members build, ensuring the building trades members have a united voice with industry challenges. Advance. STA seeks to advance our members through member only events with industry officials, B2B networking and educational programs that increase each member’s knowledge and industry intelligence for operating and growing their business.