ClubLocationLeagueTierFounded
MSU MustangsWichita Falls, TXNCAA Division IICL-21922Maccabee Los AngelesLos Angeles, CADissolved 1982—1971Madison 56ers——Magyar-AmericanCleveland, OHDissolved 192?—1906Manhattan JaspersThe BronxNCAA Division ICL-11967Manhattan SCNew York City, NYUSL League Two - Metropolitan Division41997Maranatha Sabercats——Marquette Golden EaglesMilwaukee, WINCAA Division ICL-11964Marshall Thundering HerdHuntington, WVNCAA Division ICL-11979Marshalltown TigersMarshalltown—1927Maryland BaysCatonsvilleDissolved 1991—1988Maryland BobcatsBoyds, MDNISA32016Maryland ManiaBaltimore, MDDissolved 1999—1999Maryland TerrapinsCollege Park, MDNCAA Division ICL-11946Maryville College——Mass United——Massachusetts Twisters——Massaponax Pioneers——Memphis 901MemphisDissolved 2024—2018Memphis Americans——Memphis CityMemphisDissolved 2018—2015Memphis RoguesMemphisDissolved 1980—1978Memphis StormMemphisDissolved 1994—1986Memphis TigersMemphisNCAA Division ICL-1UNKMenlo OaksAtherton, CANCAA Division IICL-2UNKMercer——Mercer BearsMacon, GANCAA Division ICL-11970Mercy MavericksDobbs Ferry—1950Mercyhurst——MezcalaSan Francisco, CASan Francisco SFL - Majors DivisionRL-2UNK