American soccer writing, history & data.
| Team | Location | Years |
|---|---|---|
| Los Angeles Toros | Los Angeles, CA | 1967-1967 |
| Lineage: San Diego Toros | Related teams: San Diego Toros | ||
| SAC Wisla | Chicago, IL | 1927 |
| Sacramento A.F.C. | Sacramento, CA | 1905-1906 |
| Sacramento Geckos | Sacramento, CA | 1999-1999 |
| Lineage: Team Sacramento | Related teams: Albuquerque Geckos, Team Sacramento | ||
| Sacramento Gold | Sacramento, CA | 1978-1980 |
| Sacramento Gold FC | - | 2010 |
| Sacramento Knights | Sacramento, CA | 1993-2001 |
| Sacramento Knights | - | 2004-2001 |
| Sacramento Republic FC | - | 2014 |
| Sacramento Scorpions | Sacramento, CA | 1996-1997 |
| Sacramento Senators | Sacramento, CA | 1989-1989 |
| Sacramento Spirit | Sacramento, CA | 1980-1980 |
| Sacramento Spirits | Sacramento, CA | 1976-1978 |
| Sacramento Storm | Sacramento, CA | 1994-1996 |
| Lineage: California Storm | Related teams: California Storm | ||
| Sacramento Surge | - | 2012 |
| Sacramento Thunder | - | 1998 |
| Sacred Heart | Baltimore, MD | 1943-1945 |
| Saint Louis Athletica | St. Louis, MO | 2009-2010 |
| Saint Louis FC | - | 2015 |
| Saint Louis FC U23 | - | 2007 |
| Salinas Valley Samba | - | 2004 |
| Salt Lake Sting | Salt Lake City, UT | 1990-1991 |
| Saltillo Rancho Seco | - | 2013 |
| San Antonio Alamo Lineage | - | 1987-1990 |
| Lineage: San Antonio Alamo | Related teams: San Antonio Alamo, San Antonio International | ||
| San Antonio Alamo | San Antonio, TX | 1990-1990 |
| Lineage: San Antonio Alamo | Related teams: San Antonio International | ||
| San Antonio FC | - | 2016 |
| San Antonio Generals | San Antonio, TX | 1989-1993 |
| Lineage: San Antonio Pumas | Related teams: San Antonio Pumas | ||
| San Antonio Heat | San Antonio, TX | 1988-1989 |
| San Antonio International | San Antonio, TX | 1987-1989 |
| Lineage: San Antonio Alamo | Related teams: San Antonio Alamo | ||
| San Antonio Pumas Lineage | - | 1989-1996 |
| Lineage: San Antonio Pumas | Related teams: San Antonio Generals, San Antonio Pumas | ||
| San Antonio Pumas | San Antonio, TX | 1992-1992 |
| San Antonio Pumas | San Antonio, TX | 1993-1996 |
| Lineage: San Antonio Pumas | Related teams: San Antonio Generals | ||
| San Antonio Scorpions FC | - | 2012 |
| San Antonio Thunder | San Antonio, TX | 1975-1976 |
| Lineage: Tulsa Roughnecks | Related teams: Team Hawaii, Tulsa Roughnecks | ||
| San Diego 1904 FC | San Diego, CA | 2019-2021 |
| Lineage: ALBION San Diego | Related teams: ALBION San Diego | ||
| San Diego Blaze | San Diego, CA | 1992-1993 |
| San Diego Boca FC | - | 2010 |
| San Diego Flash | - | 1990 |
| San Diego Flash Lineage | - | 1998-2001 |
| Lineage: San Diego Flash | Related teams: Colorado Foxes, San Diego Flash | ||
| San Diego Flash | San Diego, CA | 1998-2001 |
| Lineage: San Diego Flash | Related teams: Colorado Foxes | ||
| San Diego Flash | - | 2011 |
| San Diego Gauchos | - | 2002 |
| San Diego Hurricanes | San Diego, CA | 1992-1992 |
| San Diego Jaws | San Diego, CA | 1976-1976 |
| Lineage: San Diego Sockers | Related teams: Baltimore Comets, Las Vegas Quicksilvers, San Diego Sockers, San Diego Sockers | ||
| San Diego Lady Top Guns | San Diego, CA | 1995-1995 |
| San Diego Nomads | San Diego, CA | 1986-1990 |
| San Diego Pumitas | - | 2005 |
| San Diego Sockers | - | 1974 |
| San Diego Sockers Lineage | - | 1976-2005 |
| Lineage: San Diego Sockers | Related teams: Baltimore Comets, Las Vegas Quicksilvers, San Diego Jaws, San Diego Sockers, San Diego Sockers | ||
| San Diego Sockers | San Diego, CA | 1978-1996 |
| Lineage: San Diego Sockers | Related teams: Baltimore Comets, Las Vegas Quicksilvers, San Diego Jaws | ||
| San Diego Sockers | San Diego, CA | 2001-2005 |
| Lineage: San Diego Sockers | Related teams: Baltimore Comets, Las Vegas Quicksilvers, San Diego Jaws | ||
| San Diego Sockers | - | 2009 |
| San Diego Spirit | San Diego, CA | 2001-2003 |
| San Diego Sunwaves | - | 2005 |
| San Diego Top Guns | San Diego, CA | 1994-1996 |
| San Diego Toros Lineage | - | 1967-1968 |
| Lineage: San Diego Toros | Related teams: Los Angeles Toros, San Diego Toros | ||
| San Diego Toros | San Diego, CA | 1968-1968 |
| Lineage: San Diego Toros | Related teams: Los Angeles Toros | ||
| San Diego United | - | 2008 |
| San Diego WFC SeaLions | - | 1998 |
| San Diego Zest FC | - | 2016 |
| San Fernando Valley Heroes | Glendora, CA | 1999-2001 |
| Lineage: Los Angeles Heroes | Related teams: Valley Golden Eagles | ||
| San Fernando Valley Quakes | - | 2006 |
| San Francisco A.F.C. | San Francisco, CA | 1902-1903 |
| San Francisco A.F.C. Lineage | - | 1905-1917 |
| Lineage: San Francisco A.F.C. | Related teams: Pickwick A.F.C., San Francisco A.F.C. | ||
| San Francisco A.F.C. | San Francisco, CA | 1905-1917 |
| Lineage: San Francisco A.F.C. | Related teams: Pickwick A.F.C. | ||
| San Francisco Bay Blackhawks | San Jose, CA | 1989-1992 |
| Lineage: San Jose Hawks | Related teams: San Jose Hawks | ||
| San Francisco Bay Diablos | South San Francisco, CA | 1993-1995 |
| San Francisco Bay Seals | San Francisco, CA | 1996-1999 |
| Lineage: Bay Area Seals | Related teams: San Francisco United All-Blacks | ||
| San Francisco City FC | - | 2016 |
| San Francisco Deltas | - | 2017 |
| San Francisco Fog | San Francisco, CA | 1980-1981 |
| Lineage: Kansas City Comets | Related teams: Detroit Lightning, Kansas City Comets | ||
| San Francisco Night Hawks Lineage | - | 1995-1995 |
| Lineage: San Francisco Night Hawks | Related teams: San Francisco Night Hawks, San Francisco Vikings | ||
| San Francisco Night Hawks | San Francisco, CA | 1996 |
| Lineage: San Francisco Night Hawks | Related teams: San Francisco Vikings | ||
| San Francisco Nighthawks | - | 1995 |
| San Francisco Seals | - | 2006 |
| San Francisco Skyhawks | - | 1998 |
| San Francisco United All-Blacks | San Francisco, CA | 1992-1995 |
| Lineage: Bay Area Seals | Related teams: San Francisco Bay Seals | ||
| San Francisco Vikings | San Francisco, CA | 1995-1995 |
| Lineage: San Francisco Night Hawks | Related teams: San Francisco Night Hawks | ||
| San Gabriel Valley Highlanders | Glendale, CA | 1997-2001 |
| San Joaquin Valley Quest | - | 2003 |
| San Jose Clash | San Jose, CA | 1996-1999 |
| San Jose CyberRays Lineage | - | 2002-2003 |
| Lineage: San Jose CyberRays | Related teams: Bay Area CyberRays, San Jose CyberRays | ||
| San Jose CyberRays | San Jose, CA | 2002-2003 |
| Lineage: San Jose CyberRays | Related teams: Bay Area CyberRays | ||
| San Jose Earthquakes Lineage | - | 1974-1988 |
| Lineage: San Jose Earthquakes | Related teams: Golden Bay Earthquakes, San Jose Earthquakes, San Jose Earthquakes | ||
| San Jose Earthquakes | San Jose, CA | 1974-1982 |
| Lineage: San Jose Earthquakes | Related teams: Golden Bay Earthquakes | ||
| San Jose Earthquakes | San Jose, CA | 1985-1988 |
| Lineage: San Jose Earthquakes | Related teams: Golden Bay Earthquakes | ||
| San Jose Earthquakes | - | 1994 |
| San Jose Earthquakes U-23 | - | 2014 |
| San Jose Frogs F.C. | - | 2005 |
| San Jose Grizzlies | San Jose, CA | 1994-1995 |
| San Jose Hawks Lineage | - | 1989-1993 |
| Lineage: San Jose Hawks | Related teams: San Francisco Bay Blackhawks, San Jose Hawks | ||
| San Jose Hawks | San Jose, CA | 1993-1993 |
| Lineage: San Jose Hawks | Related teams: San Francisco Bay Blackhawks | ||
| San Jose Oaks | San Jose, CA | 1974 |
| San Nicolas SC | Santa Barbara, CA | 1963 |
| San Ramon FC | - | 2016 |
| Sanitary Sodas | Milwaukee, WI | 1938-1938 |
| Lineage: Croatian Eagles | Related teams: Croatian Eagles, Croatian Eagles, Croatian Eagles, Croatian Eagles Sanitary Sodas, Croatian Oconomowoc Brews, Eagles C.A.C. | ||
| Sanjaxx Lions | - | 2015 |
| Santa Barbara Condors | Santa Barbara, CA | 1977-1977 |
| Santa Barbara Sharks | - | 2002 |
| Santa Clarita Blue Heat | - | 2008 |
| Santa Cruz A.C. | Santa Cruz, CA | 1905-1906 |
| Santa Cruz County Breakers | - | 2007 |
| Santa Cruz Monarchs | Santa Cruz, CA | 1994-1994 |
| Santa Cruz Surf | Santa Cruz, CA | 1993-1994 |
| Santa Maria K-C Club | Baltimore, MD | 1948-1950 |
| Lineage: Conkling P.C. | Related teams: Conkling P.C. | ||
| Saskatoon Accelerators | - | 2007 |
| Saturn FC | - | 2009 |
| Savannah Rug Ratz | Savannah, GA | 1997-1998 |
| Sayles Finishing Plant F.C. | Saylesville, RI | 1920-1925 |
| SC Cornthians USA | - | 2016 |
| SC Toronto | - | 1996 |
| SC United Bantams | - | 2012 |
| SC Waterloo Region | - | 2011 |
| Scandia A.C. | Hartford, CT | 1923-1955 |
| Scandinavian A.C. | Worcester, MA | 1924 |
| Scandinavian-American S.C. | Milwaukee, WI | 1923-1923 |
| Scandinavian-American Sport Club | Madison, WI | 1934-1935 |
| Scarborough SC | - | 2015 |
| Schaefer Brewers | Paterson, NJ | 1972-1973 |
| Lineage: New Jersey Brewers | Related teams: New Jersey Brewers | ||
| Schlitz S.C. | Milwaukee, WI | 1945-1945 |
| Schumacher Undertakers | St. Louis, MO | 1935-1936 |
| Schumachers | St. Louis, MO | 1951-1952 |
| Scotia F.C. | San Francisco, CA | 1907-1909 |
| Scots-Americans Lineage | - | 1933-1953 |
| Lineage: Scots-Americans | Related teams: Kearny Americans, Kearny Scots, Scots-Americans, Scots-Americans | ||
| Scots-Americans | Kearny, NJ | 1933-1941 |
| Lineage: Scots-Americans | Related teams: Kearny Americans, Kearny Scots | ||
| Scots-Americans | Kearny, NJ | 1952-1953 |
| Lineage: Scots-Americans | Related teams: Kearny Americans, Kearny Scots | ||
| Scottish Thistle A.F.C. | San Francisco, CA | 1903-1904 |
| Scottish-American A.C. | Kearny, NJ | 1894-1918 |
| Scullin Steel Co. F.C. | St. Louis, MO | 1918-1925 |
| Lineage: St. Louis | Related teams: Central Brewers, Columbus Club, Hellrung & Grimm, Missouri Naval Reserves, St. Louis, Stix, Baer & Fuller, Wellston F.C. | ||
| SD United | - | 2008 |
| Seacoast United Mariners | - | 2012 |
| Seacoast United Phantoms | - | 1996 |
| Seacoast United Phantoms | - | 2010 |
| Seacoast United Phantoms | - | 2011 |
| Seattle BigFoot | Seattle, WA | 1998-1998 |
| Lineage: Seattle Sounders Select | Related teams: Everett BigFoot, Puget Sound BigFoot, Puget Sound Hammers, Seattle Sounders Select | ||
| Seattle Hibernian | Seattle, WA | 1998-1998 |
| Seattle Impact FC | - | 2014 |
| Seattle Reign FC | - | 2013 |
| Seattle SeaDogs | Seattle, WA | 1995-1997 |
| Seattle Sounders | Seattle, WA | 1974-1983 |
| Seattle Sounders | Seattle, WA | 1994-2008 |
| Seattle Sounders FC | - | 2009 |
| Seattle Sounders FC 2 | - | 2015 |
| Seattle Sounders FC U-23 | - | 2006 |
| Seattle Sounders Select | - | 1995 |
| Seattle Sounders Select Lineage | - | 1998-2002 |
| Lineage: Seattle Sounders Select | Related teams: Everett BigFoot, Puget Sound BigFoot, Puget Sound Hammers, Seattle BigFoot, Seattle Sounders Select | ||
| Seattle Sounders Select | Seattle, WA | 1999-2002 |
| Lineage: Seattle Sounders Select | Related teams: Everett BigFoot, Puget Sound BigFoot, Puget Sound Hammers, Seattle BigFoot | ||
| Seattle Sounders Women | - | 2001 |
| Seattle Sporting FC | - | 2014 |
| Seattle Storm Lineage | - | 1989-1990 |
| Lineage: Seattle Storm | Related teams: F.C. Seattle, F.C. Seattle Storm, Seattle Storm | ||
| Seattle Storm | Seattle, WA | 1989-1990 |
| Lineage: Seattle Storm | Related teams: F.C. Seattle, F.C. Seattle Storm | ||
| Seattle Synergy | - | 2009 |
| Serbia Kitchener | - | 1973 |
| Serbian Sport Club | Milwaukee, WI | 1951-1965 |
| Serbian Sport Club 2nd | Milwaukee, WI | 1956-1964 |
| Serbian White Eagles FC | - | 1970 |
| Serra's Cafe | Baltimore, MD | 1948-1949 |
| Sevilla FC Puerto Rico | - | 2011 |
| Shamrocks | St. Louis, MO | 1905-1906 |
| Shamrocks | St. Louis, MO | 1906-1909 |
| Shamrocks | St. Louis, MO | 1907-1908 |
| Shamrocks | Milwaukee, WI | 1948-1948 |
| Sharp Manufacturing Co. F.C. | New Bedford, MA | 1921-1921 |
| Shasta Scorchers | Redding, CA | 1994-1995 |
| Shawsheen S.C. | Shawsheen Village, MA | 1925-1926 |
| Sheboygan S.C. | Sheboygan, WI | 1951-1958 |
| Sheboygan S.C. 2nd | Sheboygan, WI | 1956-1960 |
| Sheboygan Sports Club | Sheboygan, WI | 1925-1936 |
| Sheboygan Sports Club 2nd | Sheboygan, WI | 1928-1935 |
| Shreveport Rafters FC | - | 2016 |
| Shreveport-Bossier Lions | Bossier City, LA | 1998-1998 |
| Sigma FC | - | 2014 |
| Silicon Valley Ambassadors | Los Altos Hills, CA | 1998-1999 |
| Silicon Valley Firebirds | San Jose, CA | 1994-1994 |
| Lineage: Willamette Valley Firebirds | Related teams: Palo Alto Firebirds, Portland Firebirds, Willamette Valley Firebirds | ||
| Silicon Valley Firebirds | San Jose, CA | 1994-1994 |
| Silicon Valley Red Devils | Cupertino, CA | 1996-2000 |
| Simmons | Kenosha, WI | 1916-1922 |
| Simmons | Kenosha, WI | 1934-1937 |
| Simmons Blues | Kenosha, WI | 1926-1928 |
| Sioux City Breeze | Sioux City, IA | 1994-1999 |
| Sioux Falls Spitfire | - | 2001 |
| Sky Blue FC | Piscataway, NJ | 2008-2020 |
| Sky Blue FC | - | 2009 |
| Sloga Croatian A.C. | Milwaukee, WI | 1925-1926 |
| Sloga Croatian A.C. 2nd | Milwaukee, WI | 1925-1925 |
| Slovak Catholic Sokols | Racine, WI | 1931-1936 |
| Slovak Catholic Sokols | Kenosha, WI | 1934-1936 |
| So Cal Rush | - | 2009 |
| SoCal FC | - | 2015 |
| SoCal SC | - | 2016 |
| SoCal Surf | - | 2016 |
| Soccer Portugais due Quebec | - | 1970 |
| SoccerPlus CT | - | 2007 |
| Social Club of Baltimore | Baltimore, MD | 1943-1943 |
| Soles de Sonora | - | 2015 |
| Somerville F.C. | Somerville, NJ | 1894-1894 |
| Sonoma County Sol | - | 2004 |
| Sonoma County Sol | - | 2006 |
| Sonoran Thunder | - | 2002 |
| Sons of St. George Lineage | - | 1913-1926 |
| Lineage: Sons of St. George | Related teams: Sons of St. George, Sons of St. George, St. George's S.F.C. | ||
| Sons of St. George | Milwaukee, WI | 1913-1914 |
| Lineage: Sons of St. George | Related teams: St. George's S.F.C. | ||
| Sons of St. George | Milwaukee, WI | 1924-1926 |
| Lineage: Sons of St. George | Related teams: St. George's S.F.C. | ||
| Sons of St. George Blues | Milwaukee, WI | 1925-1925 |
| South Carolina Shamrocks | Greer, SC | 1996-1999 |
| South Ends | St. Louis, MO | 1905-1905 |
| South Florida Flamingos | Miami Gardens, FL | 1994-1994 |
| South Florida Future | Miami Shores, FL | 1995-2000 |
| South Florida Strikers | - | 2010 |
| South Florida Sun | Fort Lauderdale, FL | 1985-1985 |
| South Florida Surf | - | 2016 |
| South Georgia Tormenta FC | - | 2016 |
| South Jersey Banshees | - | 2001 |
| South Jersey Barons | Ocean City, NJ | 1997-2004 |
| South Jersey United FC | - | 2010 |
| South Milwaukee | South Milwaukee, WI | 1913-1913 |
| South Side S.C. | St. Louis, MO | 1937-1938 |
| South Texas Border Bandits | Edinburg, TX | 1991-1993 |
| Southern California Chivas Lineage | - | 1996-1998 |
| Lineage: Southern California Chivas | Related teams: Southern California Chivas, Southern California Gunners | ||
| Southern California Chivas | Fullerton, CA | 1997-1998 |
| Lineage: Southern California Chivas | Related teams: Southern California Gunners | ||
| Southern California Fusion | - | 2006 |
| Southern California Gunners | Fullerton, CA | 1996-1996 |
| Lineage: Southern California Chivas | Related teams: Southern California Chivas | ||
| Southern California Lazers | Torrance, CA | 1978-1978 |
| Southern California Seahorses | - | 2001 |
| Southern Oregon Fuego | - | 2009 |
| Southern West Virginia King's Warriors | - | 2012 |
| Southwest Florida Manatees Lineage | - | 1997-1998 |
| Lineage: Southwest Florida Manatees | Related teams: Fort Myers/Naples Manatees, Southwest Florida Manatees | ||
| Southwest Florida Manatees | Cape Coral, FL | 1997-1998 |
| Lineage: Southwest Florida Manatees | Related teams: Fort Myers/Naples Manatees | ||
| Spaldings | St. Louis, MO | 1903-1904 |
| Spanish Sport Club | East St. Louis, IL | 1935-1935 |
| Lineage: Burke Undertakers | Related teams: Burke Undertakers | ||
| Sparta A. & B. A. | Chicago, IL | 1925-1933 |
| Spartans S.C. | - | 1995 |
| Spicas | St. Louis, MO | 1951-1952 |
| Lineage: Grapette | Related teams: Grapette, Joe Lennemann, Inc., Kutis, Ray Dohle, Inc., Steamfitters | ||
| Splitdorf F.C. | Newark, NJ | 1916-1917 |
| Spokane Black Widows | - | 2010 |
| Spokane Shadow | Spokane, WA | 1996-2005 |
| Spokane Shine | - | 2011 |
| Spokane Spiders | - | 2007 |
| Sporting Arizona FC | - | 1992 |
| Sporting Kansas City Lineage | - | 2011-present |
| Lineage: Sporting Kansas City | Related teams: Kansas City Wiz, Kansas City Wizards, Sporting Kansas City | ||
| Sporting Kansas City | - | 2011 |
| Lineage: Sporting Kansas City | Related teams: Kansas City Wiz, Kansas City Wizards | ||
| Sportsmans | St. Louis, MO | 1902-1905 |
| Springfield F.C. | Springfield, MA | 1937-1938 |
| Springfield S.C. | Springfield, MA | 1926-1926 |
| Springfield Sirens | Springfield, MA | 1999-2002 |
| Sprint Hawaii Tsunami | Honolulu, HI | 1994-1994 |
| Lineage: Hawaii Tsunami | Related teams: Hawaii Tsunami | ||
| St. Alphonsus Young Men's Sodality | - | 1903 |
| St. Ann's Young Men's Sodality | - | 1903 |
| St. Catharines Heidelberg | - | 1971 |
| St. Catharines Wolves | - | 1977 |
| St. Edward's Young Men's Sodality | - | 1903 |
| St. Emery's | Milwaukee, WI | 1934-1937 |
| St. George Field Club | New York, NY | 1913-1914 |
| St. George United | - | 2010 |
| St. George's S.F.C. | Milwaukee, WI | 1914-1916 |
| Lineage: Sons of St. George | Related teams: Sons of St. George, Sons of St. George | ||
| St. Gerard Y.M.A. | - | 1917 |
| St. Gerard Y.M.A. | Baltimore, MD | 1937-1966 |
| Lineage: Baltimore Flyers | Related teams: Baltimore Flyers, Baltimore-St. Gerard S.C. | ||
| St. James | St. Louis, MO | 1910-1911 |
| St. Lawrence O'Toole's Young Men's Sodality | - | 1903 |
| St. Leo's | St. Louis, MO | 1902-1918 |
| Lineage: Club Lotus | Related teams: Club Lotus, Coca-Cola, Hellrung & Grimm, Madison Kennel Club, Minit-Rub Stars, Morgan Haulers, St. Louis Screw Co. F.C., Vesper-Buick F.C., White Banner Malt F.C. | ||
| St. Louis Lineage | - | 1918-1935 |
| Lineage: St. Louis | Related teams: Central Brewers, Columbus Club, Hellrung & Grimm, Missouri Naval Reserves, Scullin Steel Co. F.C., St. Louis, Stix, Baer & Fuller, Wellston F.C. | ||
| St. Louis | St. Louis, MO | 1935-1935 |
| Lineage: St. Louis | Related teams: Central Brewers, Columbus Club, Hellrung & Grimm, Missouri Naval Reserves, Scullin Steel Co. F.C., Stix, Baer & Fuller, Wellston F.C. | ||
| St. Louis Ambush | - | 1991-2000 |
| St. Louis Ambush | - | 2013 |
| St. Louis Frogs | St. Louis, MO | 1972-1972 |
| St. Louis Illusion | - | 2008 |
| St. Louis Knights | St. Louis, MO | 1994-1995 |
| St. Louis Lady Knights | St. Louis, MO | 1994-1994 |
| St. Louis Lions | - | 2006 |
| St. Louis Raiders | St. Louis, MO | 1947-1947 |
| Lineage: Kutis | Related teams: Kutis, McMahon Pontiac Co., Paul Schulte Motors, Raiders, Raiders, Zenthoefer Furs | ||
| St. Louis Scott Gallagher Elite | - | 2010 |
| St. Louis Screw Co. F.C. | St. Louis, MO | 1918-1922 |
| Lineage: Club Lotus | Related teams: Club Lotus, Coca-Cola, Hellrung & Grimm, Madison Kennel Club, Minit-Rub Stars, Morgan Haulers, St. Leo's, Vesper-Buick F.C., White Banner Malt F.C. | ||
| St. Louis Stars | St. Louis, MO | 1967-1977 |
| Lineage: California Surf | Related teams: California Surf | ||
| St. Louis Steamers | St. Louis, MO | 1979-1988 |
| St. Louis Steamers | St. Louis, MO | 2000-2006 |
| St. Louis Storm | St. Louis, MO | 1989-1992 |
| St. Louis Strikers | - | 2003 |
| St. Malachy's | St. Louis, MO | 1908-1909 |
| St. Mark's | St. Louis, MO | 1905-1909 |
| St. Mary's Celtic | Brooklyn, NY | 1934-1942 |
| St. Matthew's | St. Louis, MO | 1903-1908 |
| St. Matthew's Lineage | - | 1937-1938 |
| Lineage: St. Matthew's | Related teams: Anderson, Ben Miller Athletics, Ben Miller F.C., Marres, Pants Store F.C., Raticans, St. Matthew's, Tabler F.C., Town Crier Soda | ||
| St. Matthew's | St. Louis, MO | 1937-1938 |
| Lineage: St. Matthew's | Related teams: Anderson, Ben Miller Athletics, Ben Miller F.C., Marres, Pants Store F.C., Raticans, Tabler F.C., Town Crier Soda | ||
| St. Michael's | Fall River, MA | 1919-1953 |
| St. Michael's S.C. | Cambridge, MA | 1953-1953 |
| St. Patrick's | St. Louis, MO | 1937-1938 |
| Lineage: Lindell Bank & Trust Co. | Related teams: Lindell Bank & Trust Co. | ||
| St. Petersburg Kickers | St. Petersburg, FL | 1957 |
| St. Rose's | St. Louis, MO | 1903-1911 |
| St. Rose's Young Men's Sodality | - | 1903 |
| St. Teresa's | St. Louis, MO | 1904-1912 |
| St. Teresa's | St. Louis, MO | 1907-1910 |
| Standard Falcons | Montclair, CA | 1993-1995 |
| Lineage: Fontana Falcons | Related teams: Fontana Falcons | ||
| Stanford University | Palo Alto, CA | 1910-1913 |
| Stanislaus County Cruisers | Modesto, CA | 1997-1999 |
| Staten Island Vipers | - | 1995-1999 |
| Staten Island Vipers Lineage | - | 1998-1999 |
| Lineage: Staten Island Vipers | Related teams: New York Centaurs, New York Fever, Staten Island Vipers | ||
| Staten Island Vipers | Staten Island, NY | 1998-1999 |
| Lineage: Staten Island Vipers | Related teams: New York Centaurs, New York Fever | ||
| Steamfitters | St. Louis, MO | 1947-1949 |
| Lineage: Grapette | Related teams: Grapette, Joe Lennemann, Inc., Kutis, Ray Dohle, Inc., Spicas | ||
| Steel City Sparks | - | 2004 |
| Stemmers Run | Essex, MD | 1942-1945 |
| Stix, Baer & Fuller | St. Louis, MO | 1931-1934 |
| Lineage: St. Louis | Related teams: Central Brewers, Columbus Club, Hellrung & Grimm, Missouri Naval Reserves, Scullin Steel Co. F.C., St. Louis, Wellston F.C. | ||
| Storm FC | - | 2014 |
| Storm Sacramento | - | 2013 |
| Stumptown AC Lineage | - | 2019-2021 |
| Lineage: Stumptown AC | Related teams: Stumptown AC, Stumptown Athletic | ||
| Stumptown AC | Matthews, NC | 2021-2021 |
| Lineage: Stumptown AC | Related teams: Stumptown Athletic | ||
| Stumptown Athletic | Matthews, NC | 2019-2020 |
| Lineage: Stumptown AC | Related teams: Stumptown AC | ||
| Sudbury | - | 1971 |
| Sudbury Canadians | - | 2004 |
| Sudbury Cyclones | - | 1976 |
| Sudbury Italia Flyers | - | 1965 |
| Summit Soccer | Houston, TX | 1978-1980 |
| Lineage: Baltimore Blast | Related teams: Baltimore Blast | ||
| SW Florida Adrenaline | - | 2013 |
| SWC Houston Stars | - | 2003 |
| Swedish-American A.A. | Worcester, MA | 1935-1941 |
| Swope Park Rangers KC | - | 2016 |
| Sylva A.C. | Hoboken, NJ | 1894-1894 |
| Syracuse Lady Knights | - | 2012 |
| Syracuse Pulse | Syracuse, NY | 2022-2022 |
| Syracuse Salty Dogs | - | 2003 |
| Syracuse Scorpions | Syracuse, NY | 1969-1970 |
| Syracuse Silver Knights | - | 2011 |
| Syracuse Suns | Syracuse, NY | 1971-1974 |