| Name | Labels | City | State / Province |
|---|
| SCOR Agility LLC | club | | NJ |
| SCoot Dog Agility | facilitytraining | John's Island | SC |
| SMARTDOG | onlinetraining | | |
| Saddlebag Tunnel Holders | equipment | | |
| Saguaro Scramblers Agility Club | club | Tucson | AZ |
| Saint Paul Dog Training Club | clubfacilityrentaltraining | South Saint Paul | MN |
| Salinas-Monterey Agility Center | training | Salinas | CA |
| Salisbury Maryland Kennel Club | clubfacilitytraining | Salisbury | MD |
| San Francisco SPCA | training | San Francisco | CA |
| Santa Barbara Flyers Dog Sports Club | clubfacilitygeneraltraining | Santa Barbara | CA |
| Santa Barbara Flyers Dog Sports Club | clubfacilitytraining | Santa Barbara | CA |
| Santa Fe Dog, LLC | training | Santa Fe | NM |
| Sarasota Obedience Training Club | clubtraining | Sarasota | FL |
| Say Yes Dog Training - Susan Garrett | facilitystoretrainingvideo | Alberton | ON |
| ScallyWaggs | club | Victoria | BC |
| Schauenburg Industries ltd. - Dog Tunnels | equipment | North Bay | ON |
| Scores-N-More | service | Hershey | PA |
| Seattle Agility Center-Extreme Agility Team | clubfacilitytraining | Maple Valley | WA |
| Semper Fi Dog Training | training | Fayetteville | GA |
| Semper Fido Blog | blogvideo | | |
| Send 'em Running -- Training Distance Handling | training | Dummerston | VT |
| Setterwoods Dog Training | training | Chatham | VA |
| Shamrock Acres Training Center | clubfacilitytraining | Louisville | KY |
| Shape Up Dogs | onlinetraining | Edmonton | AB |
| Sheboygan Dog Training Club, Inc. | clubtraining | Sheboygan | WI |
| Show Me The Biscuit | facilitystoretraining | Williston | VT |
| Show-Me Canines Performance Club | club | Columbia | MO |
| Sierra-Tuolumne Kennel Club Inc. | clubtraining | Soulsbyville | CA |
| Silver Rose Ranch Canine Training Center | facilitytraining | Chino Hills | CA |
| Simply Agility | facilityrentaltraining | Adel | IA |
| Sirius Dog Agility Training Center | facilitytraining | Scottdale | GA |
| Sirius Fun Agility | facilitytraining | Woodinville | WA |
| Sirius Ranch | facilityrental | Palmer | AK |
| Sit, Stay, 'N Play, Inc. | facilityrentalstoretraining | Stroudsburg | PA |
| Sky River K9 | equipmentfacilitytraining | Monroe | WA |
| Skyelab Training Center | facilitytraining | Erie | CO |
| Skyline Agility Club | clubtraining | Middletown | NY |
| Skyrocket Dog Sports - Melissa Frye | equipmentfacilitytraining | Leesburg | VA |
| Sleeping Giant Dog Sports | club | Thunder Bay | ON |
| Smart Paws Academy | facilitystoretraining | Oregon City | OR |
| SmartyPaws Canine Coaching | clubfacilitytraining | Las Vegas | NV |
| SmartyPaws Dog Training & Sports Center | facilitytraining | Belleville | IL |
| Smiles and Wags | facilitytraining | Cookeville | TN |
| Smooth Moves Agility - Guy Blanke | video | | |
| Sno-King Agility Club | facilitytraining | Clearview | WA |
| Solveig's Agility Homepage | bloggeneral | | |
| Sonic Canines | blogtrainingvideo | Pensacola | FL |
| Sonic K9s | facilitygeneralonlinerentaltrainingvideo | Beverly Hills | FL |
| Sonlight Ranch | clubfacilityonlinerentaltraining | Brooksville | FL |
| South Coast Dog Training | facilitytraining | San Clemente | CA |
| South Paw Agility | training | Melbourne | FL |
| South Paw Obedience Training & Doggie Daycare | training | Porter | TX |
| South West Agility Calendar | general | | |
| Southeast and Southwest Florida Dog Agility | facilityrental | Naples | FL |
| Southern Berkshire Agility Dogs, Inc. | club | | CT |
| Southern Connecticut Agility Team, Inc | club | | CT |
| Southern Maine Agility Rough Riders Team - SMARRT | club | | ME |
| Southern New England Agility Klub - SNEAK | clubtraining | | |
| Southern Utah Dog Sports | clubtraining | | UT |
| Southside Dog Agility and Training Center | equipmentfacilitygeneral | Aiken | South Carolina |
| Southwest Agility Team (SWAT) | club | | NM |
| Southwest Houston Agility Group - SHAG | club | Houston | TX |
| Spectrum Speed Dogsports | clubgeneraltraining | Edmonton | AB |
| Speedoggie.com - Chris Parker | blogfacilitytrainingvideo | Jackson | NJ |
| Speedoggie.com - Chris Parker - Greendell | blogfacilitytrainingvideo | Greendell | NJ |
| Speedoggie.com - Chris Parker - South Toms River | blogfacilitytrainingvideo | South Toms River | NJ |
| Speedy Paws, LLC | rentaltraining | Greenville | SC |
| SpiritDog Training | facilitytraining | Cedar Crest | NM |
| Spitz & Dog Agility | blog | | CA |
| Splash 'n Dash K9 Sports | clubfacilitytraining | Plum | PA |
| Spokane Dog Training Club | clubfacilitytraining | Spokane Valley | WA |
| Sportsmen's Dog Training Club of Detroit, Inc. | clubfacilityrentaltraining | Warren | MI |
| Spot On Agility, LLC | blogfacilitygeneralonlinestoretrainingvideo | Port Saint Lucie | FL |
| Spot On K9 Sports | blogfacilityrentaltrainingvideo | West Chicago | IL |
| Spring Forth Dog Academy | storetraining | Providence | RI |
| Springers' Agility and Flyball Club | clubtraining | | |
| St. Hubert's Dog Training School | facilitytraining | Madison | NJ |
| St. Joe Valley Agility Club (SJVAC) | club | Buchanan | MI |
| Star City Canine Training Club | clubfacilitytraining | Salem | VA |
| Stars and Stripes Agility - Barbara Mah | facilitystoretraining | Chino | CA |
| Startline Agility Center - Mike Omartian | training | Lake View Terrace | CA |
| Staten Island Companion Dog Training Club | clubrental | Staten Island | NY |
| StewieJRT an Agility Blog | blog | Chester | NH |
| Stone City Kennel Club | clubfacilitytraining | New Lenox | IL |
| Stone Mountain Pet Lodge | facilitytraining | Minneapolis | MN |
| Stoney Run Canine Camp | facilityrentaltraining | Hebron | IN |
| Stony Creek Canine Academy | facilitytraining | Romeo | MI |
| StormAgility | equipment | Seymour | WI |
| Stride Ahead Agility - Barb Davis | training | West Palm Beach | FL |
| Sue Fleig Canine Consulting | facilitytraining | Williamson | NY |
| Suffolk Nassau Agile Paws (SNAP) | facilityrentalstoretraining | Huntington Station | NY |
| Suffolk Tailwaggers | clubtraining | Huntington | NY |
| Sugar Bush Farm - Dog Agility | facilityrentaltraining | Stephentown | NY |
| Sunny Lane K9 Academy | training | | |
| Sunset Agility | facilityrentaltraining | Fort Collins | CO |
| Sunshine Obedience School | facilitytraining | Council Bluffs | IA |
| Super Dog Agility | equipment | Newmarket | ON |
| Susan Garrett - Handling360 | online | | |
| Susan Garrett Blog | blog | | |
| Susan Garrett's Dog Training Blog | blogvideo | | |