| United States Air Force Academy Lacrosse Parents & Boosters Club (USAFA Lax) |
| US Air Force Academy, Colorado Springs, CO 80840 |
| Sport: Lacrosse |
| Upper Freehold Allentown Soccer Association (UFASA) |
| ufasoccer.com |
| Allentown NJ 08501 |
| Sport: Soccer |
| Upper Loudoun Youth Football League (ULYFL) |
| Purcellville, VA 20132 |
| Sport: Football |
| Upper Moreland Lacrosse Club (UMLAX) |
| umlax.com |
| Willow Grove, PA 19090 |
| Sport: Lacrosse |
| Upton Youth Cal Ripken Baseball (Upton Baseball) |
| Upton, MA 01568 |
| Sport: Baseball |
| US Lacrosse TEST ORG DO NOT USE (USL Demo) |
| TestSite |
| Towson, MD 21210 |
| Sport: Lacrosse |
| USA Hoopsters (Hoopsters) |
| usahoopsters.com |
| Lawrence,KS 66044 |
| Sport: Basketball |
| USA-SYS (USA-SYS) |
| southwestsports.org |
| Arizona 85710 |
| Sport: Multiple |
| FAMILY - FUN - FITNESS |
| USLaxTeams.com by US Lacrosse (USL) |
| USLaxTeams.com |
| Baltimore, MD 21210 |
| Sport: Lacrosse |