Founded in 2009, the team made its debut in the Northeast – Atlantic Conference of the National Premier Soccer League (NPSL), the fourth tier of the American Soccer Pyramid, in 2011. In March 2011, Mass United FC, announced its 2011 NPSL schedule to be played at the City of Lynn’s Manning Field, where they will be playing again in 2012. The club's colors are "United Blue", yellow and white.
Mass United will sit out the 2013 NPSL Season. 
The club also operates teams in the Bay State Soccer League (BSSL) and the Massachusetts State Soccer League (MSSL), as well as an indoor team in the MSSL.