| SCV Rampage | Santa Clarita, CA |  |
 | Seattle Crash | Seattle, WA | |
 | Seattle Starz | Seattle, WA | |
 | Second City | Chicago, IL | |
 | Sentry Lacrosse | Dallas, TX | |
| Set Lacrosse | NY | |
| Seven Hills | Worcester, MA | |
| Shock Lacrosse Club | Manhattan Beach, CA | |
| Shockwave | Dillsburg, PA | |
 | Shore 2 Shore | Nassau County, NY |   |
| Shred Thread | NATIONAL, | |
| Sidewinder TX | TX | |
 | Silver Maple Lacrosse | Rochester, NY |  |
 | Silverbacks Lacrosse | National, XX | |
| Sister of SOGO | Springboro, OH | |
 | Skywalkers Lacrosse | Baltimore, MD | |
| Slingshot UAME | Wilmington, DE | |
 | Snipers Lacrosse | Boca Raton, FL | |
 | SoCal Bulls | La Costa Canyon, CA | |
| SoCal Devils | SoCal, CA | |
 | SoCal Express | Orange County, CA | |
| SoCal Grizzlies | Orange County, CA | |
 | Sound Lacrosse | Greenwich, CT | |
 | South Bay Lacrosse club | Manhattan Beach, CA | |
 | South Bay Vipers | Chula Vista, CA | |
 | South Coast Texas Lacrosse | Houston, TX | |
| South Florida Chaos | South Florida, FL | |
| South Florida Express Lacrosse | Fort Lauderdale, FL | |
| South Jersey Black Storm | Medford, NJ | |
 | South Jersey Select | Southern, NJ | |
 | South Jersey Shamrocks | Southern, NJ | |
 | South Jersey Stealth | South Jersey, NJ | |
| South Orlando Renegades | South Orlando, FL | |
 | South Sound | Tacoma, WA | |
| Southeast Sonics Lacrosse | NATIONAL, XX | |
| Southern Express Lacrosse | Atlanta, GA | |
| Southern Stars | NC | |
 | Southern Zone | Johns Creek, GA | |
 | SouthShore Lacrosse | Richland, NJ | |
 | SouthStar | TX | |
 | Spiders Lacrosse Club | Cleveland, OH | |
| Spring-Ford Big Horns | Limerick, PA | |
 | St. Louis Samurai | St. Louis, MO | |
| Stangs LC | Port Richey, FL | |
 | Stars & Stripes Lacrosse | Macungie, PA | |
 | Stars and Stripes | Atlanta, GA | |
 | Stars Lacrosse | Alexandria, VA | |
 | Stars Lacrosse Club | Danbury, CT | |
 | Stealth Lacrosse Florida | Parkland, FL | |
| Steelhead Lacrosse Club | IL | |
 | STEPS California | San Francisco, CA | |
 | Steps Elite Lacrosse | Randolph, NJ | |
| Stick With It Lacrosse | Walnut Creek, CA | |
| Stickstar:Dallas Select | Dallas, TX | |
| Stockton Shamrocks | CA | |
| Storm Club Lacrosse | Wilmington, MA | |
 | Storm Lacrosse TX | Katy, TX | |
 | Storm Select Florida | Orlando, FL | |
| Strike Florida | Jacksonville, FL | |
| Stufunk Lacrosse | Burlington County, NJ | |
| Summit New Jersey Futures Lacrosse | Summit, NJ | |
 | Supreme Lacrosse | Houston, TX | |
 | Supreme National | NATIONAL, | |
 | Surge Lacrosse Club | Fairfield, CT | |
| Susquehanna Stripers Lacrosse Club | Harford County, MD | |
| Swarm | Orlando, FL | |
 | Sweetlax Albany Stags | Albany, NY | |
 | Sweetlax Carolina | Charlotte, NC | |
 | Sweetlax Charleston Loggerheads | Charleston, SC | |
 | Sweetlax Lacrosse | Regional, FL | |
 | Sweetlax National | NATIONAL, | |
 | Sweetlax Savannah Hawkbills | Savannah, GA | |
| Sweetlax South Florida Leatherbacks | South Florida, FL | |
 | Sweetlax Upstate | Rochester, NY | |
 | SWLXG - Sidewinders Lax | Annapolis, MD | |
| Synergy Lacrosse | Center Wellington, ON | |
 | Tampa Bay Palms Lacrosse Club | Tampa Bay, FL | |
| Tampa Tarpons | Tampa, FL | |
 | Tampa Tribe | Tampa, FL | |
 | TC - Twins Cities Lacrosse | Minneapolis, MN | |
| TC United | Traverse City, MI | |
 | Team 11 | Philadelphia, PA | |
 | Team 180 | Denver, CO | |
 | Team 222 Lacrosse | Greenville, SC | |
| Team 24 FL Lax | FL | |
| Team 36 | Bloomington, IL | |
 | Team 48 | Phoenix, AZ | |
 | Team 91 Carolina | Raleigh, NY | |
 | Team 91 Charlotte | Charlotte, NC | |
 | Team 91 Colorado | Douglas County, CO | |
| Team 91 Empire | Mt. Sinai, NY | |
 | Team 91 Georgia | Atlanta, NY | |
 | Team 91 Long Island | Long Island, NY | |
 | Team 91 Maryland | Cross Keys, FL | |
| Team 91 National | NATIONAL, | |
 | Team 91 New Jersey | NJ | |
 | Team 91 South | NC | |
 | Team 91 Tri-State | NY | |
| Team 91 Virginia | VA | |
 | Team America Lacrosse | XX | |
| Team Arizona | Central Phoenix, AZ | |
| Team BC | Vancouver, BC | |
 | Team Buffalo | Buffalo, NY | |
 | Team Carolina | Charlotte, NC | |
 | Team Coastal | Charleston, SC | |
 | Team Connecticut | New Haven, CT | |
| Team CT Girls | New Haven, CT | |
 | Team Eighteen | NATIONAL, | |
 | Team Illinois | IL | |
 | Team IMPACT | Norrisville, MD | |
 | Team Integrity | Davidsonville, MD | |
 | Team Lacrosse | York, PA | |
 | Team Maryland Lacrosse Club | Buckeystown, MD | |
 | Team Minnesota | Minneapolis, MN | |
 | Team Money Lacrosse | Central PA, PA | |
| Team Norcal | San Francisco, CA | |
 | Team One | Glenview, IL | |
 | Team Ontario | Toronto, ON | |
 | Team Oregon Lacrosse | Portland, OR | |
| TEAM PA | PA | |
| Team Scream | Los Angeles, CA | |
 | Team TEN | Wayne, PA | |
 | Team Turnpike | West Windsor, NJ | |
 | Team Virginia Lacrosse | Loudon, VA | |
| Team Wisconsin | Appleton, WI | |
 | Tempest Lacrosse | Columbus, OH | |
 | Tenacious Turtles | Smithtown, NY | |
 | Tenacity Project | Bay Area, CA | |
| Texas Heat | Lucas, TX | |
| Texas Knights | Austin, TX | |
 | Texas Legacy | Cypress, TX | |
| Texas Legend Lacrosse | Austin, TX | |
 | Texas Nationals Lacrosse Club | Dallas, TX | |
 | Texas Peppers | Houston, TX | |
| Texas Venom Lacrosse | Keller, TX | |
| The Hill Academy | Caledon, ON | |
 | The Lacrosse School Rotten Apples | Chicago, IL | |
 | The Right Way (TRW) Wolfpack | Northern, VA | |
 | Thinklax Maryland Select | Woodbine, MD | |
 | Thunder Lacrosse | Atlanta, GA | |
| Thunder Wolves | Butler, PA | |
| Tidewater Patriots | Hampton Roads, VA | |
| Tigers | | |
 | TLC | Lutherville, MD | |
 | TNLAX | Nashville, TN | |
 | TNLX | Knoxville, TN | |
| TNT Arrowheads | Dallas, TX | |
| Tomahawk Carolina Lacrosse | SC | |
 | Tommyknockers Lacrosse | Littleton, CO | |
 | Top Caliber Lacrosse | Alexandria, VA | |
| Top Center Lacrosse | Mequon, WI | |
| Top Left Lacrosse | Savannah, GA | |
| Toronto Beaches Lacrosse Club | Toronto, ON | |
| Toronto Rock Stars | Toronto, ON | |
 | Towermen Lacrosse | Ridgewood, NJ | |
 | Tradition Lacrosse | Garden City, NY | |
 | Treasure State | Bozeman, MT | |
 | Tri State Lacrosse | NJ | |
 | Triad Elite Sweetlax | Triad, NC | |
| Trilogy Lacrosse | Jersey City, NJ | |
 | Triple Threat Elite Lacrosse | Flemington/Hillsboro, NJ | |
 | Triumph Lacrosse Club | Plymouth, MI | |
 | True Belles Lacrosse | Philadelphia, PA | |
 | True Blue | Long Island, NY | |
 | True California | Danville, CA | |
 | True Colorado | CO | |
 | True Florida | FL | |
| True Gritt Lacrosse | Redding, CT | |
| True Hawks | Rockland, MA | |
 | True Idaho | ID | |
 | True Illinois | IL | |
 | True Indiana | IN | |
 | True Long Island | Long Island, NY | |
 | True Maryland | MD | |
 | True Michigan | MI | |
 | True Minnesota | MN | |
 | True National Lacrosse | NATIONAL, | |
 | True New Jersey | NJ | |
 | True North Carolina | NC | |
 | True Ohio | OH | |
| True Oregon | Portland, OR | |
 | True Pennsylvannia | PA | |
 | True Pittsburgh | Pittsburgh, PA | |
| True South Carolina | Chapin, SC | |
 | True Texas | Houston, TX | |
| True Upstate | Syracuse, NY | |
 | True Utah | UT | |
 | True Virginia | Fairfax Station , VA | |
| True Washington State | Stanwood, WA | |
 | True Westchester | Westchester, NY | |
| Tulsa Elite | Tulsa, OK | |
 | Ultimate Charlotte Lacrosse | Charlotte, NC | |
 | Ultimate Goal Lacrosse (LV) | Allentown, PA | |
| Ultimate Goal Lacrosse (NC) | Chapel HIll, NC | |
| Ultimate Goal Lacrosse (NJ) | Princeton, NJ | |
 | Ultimate Goal Lacrosse (PA) | Chesco, PA | |
| Ultimate Lax | Pittsburgh, PA | |
 | UNRL Minnesota | Eagan, MN | |
 | UNRL National | National, XX | |
 | UNRL TX | Lewisville, TX | |
 | Upper Level Elite | Chatham, NJ | |
 | Upper Level Elite | Chatham, NJ | |
 | UPROAR | Crofton, MD | |
| Upstate Carolina Lacrosse | NC | |
 | Upstate Salt Kings | Rome, NY | |
 | Urban Elite Lacrosse | Denver, CO | |
 | Utah Elevate | Olympus, UT | |
 | Utah Hive LC | Layton, UT | |
| Utah Outlaws | UT | |
 | Utah Summit | UT | |
 | Valley Select | Roanoke, VA | |
 | Vand'al | Issaquah, WA | |
| Vegas Reapers | Las Vegas, NV | |
| Vegas Starz | Las Vegas, NV | |
 | Velocity Lacrosse | West Chester, OH | |
 | Venom Lacrosse PA | PA | |
 | Verve Lacrosse | Los Gatos, CA | |
| Vibe Lacrosse | Santa Clarita, CA | |
 | Ville Lacrosse Club | Catonsville , MD | |
| Vipers Lacrosse Club | Austin, TX | |
 | Virginia Lacrosse Club (VLC) | Alexandria, VA | |
 | Virginia One | Fairfax County, VA | |
 | Vortex Elite | Chandler, AZ | |
 | Vulcan Lacrosse | Birmingham, AL | |
| Warbird Lacrosse Association | Durham, NC | |
| Ward Melville Patriot Elite Lacrosse | Ward Melville, NY | |
| Warhawks Elite | Westfield, IN | |
| Warriors Elite Lacrosse | Birmingham, MI | |
| Warwick Valley | Warwick, NY | |
| Wasatch LC | Salt Lake City, UT | |
 | Washington United Lax | Bonney Lake, WA | |
| WAYS Wildcats | Washington, DC area, MD | |
| We & US Wolverines | West Forsyth, GA | |
| Wematin - Lincoln-Sudbury Lacrosse | Sudbury, MA | |
| West Chicago Maroons | West Chicago, IL | |
| West Coast Berserkers | Los Angeles, CA | |
 | West Coast Starz | CA | |
| West Coast Warriors Lacrosse | SoCal, CA | |
| West Orange County Outlaws | West Orange County, FL | |
| West Side Lacrosse | Holland, MI | |
 | Westchester Predators Lacrosse | Westchester, NY | |
 | Westchester Warriors | Somers, NY | |
 | Western Select | Jackson, WY | |
| Westlake Lacrosse | Austin, TX | |
 | Westside | Holland, MI | |
| Westside Bears LC | Los Angeles, CA | |
| Westside Wild | KS | |
 | Westward Lacrosse | Las Vegas, NV | |
| White Rose LC | MD | |
| Wild Tide | Shallote, NC | |
| Winter Park Lacrosse Club | Winter Park, FL | |
| Wisconsin Pirate Lacrosse | Dousman, WI | |
| Wise Guys Lacrosse | Santa Clarita Valley, CA | |
| Wolfpack Lacrosse | Southern Marin, CA | |
| Wolverine LC | Orem, UT | |
| X-Treme Lax Factory | Oakland, NJ | |
 | Xtreme Lacrosse Club | Lancaster, PA | |
 | Yellow Jackets Dutchess | Dutchess, NY | |
 | Yellow Jackets Mid-Atlantic | Northern Virginia, VA | |
 | Yellow Jackets North - Rockland | Rockland County, NY | |
 | Yellow Jackets North - Westchester | Pleasantville, NY | |
| Yellow Jackets South | Richmond, VA | |
 | Yeti Lacrosse | Cary, IL | |
 | York Invaders | Stewartstown, PA | |
 | Zingos Lacrosse Club | Ellicot, MD | |
