| SYC | Gmc Syclone 
| Others |
| SYC | Sahm Yook College
| Others |
| SYC | Sandpiper Youth Club
| Others |
| SYC | Sandringham Yacht Club
| Others |
| SYC | Sarasota Yacht Club
| Others |
| SYC | Sausalito Yacht Club
| Others |
| SYC | Savannah Yacht Club
| Others |
| SYC | Save Your Children
| Others |
| SYC | School for Young Children
| Others |
| SYC | Seattle Yacht Club
| Others |
| SYC | Seattle Yacht Club's
| Others |
| SYC | Seattle Yellow Cab
| Others |
| SYC | Sedalia Youth Center
| Others |
| SYC | Sell Your Car
| Others |
| SYC | Semarang Yaris Community
| Others |
| SYC | Sequoia Yacht Club
| Others |
| SYC | SERVEing Young Children
| Others |
| SYC | Shawnee Yacht Club
| Others |
| SYC | Shennecossett Yacht Club
| Others |
| SYC | Shue Yan College
| Others |
| SYC | Sierra Youth Coalition
| Others |
| SYC | Singapore Youth Choir
| Others |
| SYC | Skoda Yeti Club
| Others |
| SYC | Smyrna Yacht Club
| Others |
| SYC | So You Care
| Others |
| SYC | Sol Y Canto
| Others |
| SYC | Somersworth Youth Connection
| Others |
| SYC | South Yung Crips
| Others |
| SYC | Southern Yacht Club
| Others |
| SYC | Southern York County
| Others |
| SYC | Southern York County School District
| Others |
| SYC | Southport Yacht Club
| Others |
| SYC | Special Youth Challenge
| Others |
| SYC | Springfield Youth Club
| Others |
| SYC | Springfield Youth Club, Springfield, Virginia
| Others |
| SYC | Squantum Yacht Club (MA)
| Others |
| SYC | Stamford Yacht Club
| Others |
| SYC | Static Yard Capacity
| Others |
| SYC | Steinberger Yacht Club, e.V.
| Others |
| SYC | Storm Youth Championships
| Others |
| SYC | Stoughton Youth Center
| Others |
| SYC | Subject Yet To Be Cleared
| Others |
| SYC | Sukabumi Yaris Community
| Others |
| SYC | Summer Youth College
| Others |
| SYC | Summer Youth Conservatory
| Others |
| SYC | Super Yenko Car
| Others |
| SYC | Super Youth Circuit
| Others |
| SYC | Surprise Youth Council
| Others |
| SYC | Susquehanna Yacht Club
| Others |
| SYC | Sylter Yacht Club, e.V.
| Others |
| SYC | Synod Youth Committee
| Others |
| SYC | Syracuse Yacht Club
| Others |
| SYC | System Control
| Others |
| SYC | Youth Club
| Others |