David Borrus P'17 is the Business Manager for UBC Pile Drivers & Divers Local 56, New England Regional Council of Carpenters, representing over 470 pile drivers, marine welders, commercial drivers, and harbor pilots. He is also a Trustee for the New England Carpenters Training Fund. David has been a commercial diver since 1979, and a member of the Local 56 since 1991.

David has been an At Large delegate to the Jewish Community Relations Council of Boston since 2013, and is active on the organization's Israel and Global Affairs Committee. He has been a board member of the New England Jewish Labor Committee, and in July 2019 co-led a JCRC Israel Study trip for Labor Leaders, which included representatives from the Carpenters, Electricians, Painters, Nurses, and Police unions.

From 1980-1984 he lived in Israel and was a founding member of Kibbutz Lotan. He also was an Eisendrath International Exchange Scholar in 1976, living at Kibbutz Nahal Oz during his junior year in high school.

He is a graduate of the Professional Diving School of New York (1979) and the University of Rhode Island (B.S., Resource Development 1987). His son, Sam, graduated from Harvard College in 2017.