| Name | Labels | City | State / Province |
|---|
| Lab Tested Secretary Services | service | | |
| Lakeland Dog Training Club | club | Cambridge | WI |
| Las Cruces Dog Sports | clubfacilityrentaltraining | La Mesa | NM |
| Las Vegas Dogs In Competitive Events | club | Las Vegas | NV |
| Lead Me On Ursula's Boarding & Training | training | Olympia | WA |
| Leader of the Pack | facilitytraining | Smyrna | NY |
| Leader of the Pack Canine Center LLC | facilitytraining | Buffalo | MN |
| Leap Of Faith Dog Training and Services | facilitygeneraltraining | Mobile | AL |
| LeapDog Agility | facilityrentaltraining | Petaluma | CA |
| Leaps & Bounds Dog Agility | equipmentfacilitystoretraining | Nashsville | TN |
| Leaps & Bounds K-9 Agility Training | training | Comstock Park | MI |
| Leaps and Bounds Agility Center | facilityrentaltraining | Houston | TX |
| Legendary Dog Training - Elizabeth Dott | facilitytraining | Zellwood | FL |
| Lehigh Valley DreamWeavers Agility Club | club | Lehigh Valley | PA |
| Let's Play!!!!! | blog | | |
| Level Up Dog Sports LLC | clubfacilityonlinerentaltraining | Mechanicsville | VA |
| Life and Times of Team Whisner | blogvideo | | |
| Life with a Koolie ……. | blog | | |
| Linda Barton's Aim Hi Coaching | training | Ayr (North Dumfries) | ON |
| Linda Freed | facilitytraining | Ravenel | SC |
| Linda Mecklenburg | online | | |
| Lisa Bataska Dog Training | facilitytraining | Merrillville | IN |
| Little Rock Dog Training Club | clubfacilitytraining | Little Rock | AR |
| LoLaBu Land - Silvia Trkman | generalonlinevideo | | |
| LoneStar Agility Center | facilitytraining | Houston | TX |
| Long Island Agility | clubtraining | Huntington Station | NY |
| Lorrie’s Agility Dog Blog | blog | | |
| Lotus Education - Jenny Damm | trainingvideo | | |
| Louisiana Capital City Obedience Club | clubtraining | Baton Rouge | LA |
| Love on a Leash Dog Training and Agility | facilityrentaltraining | Harrisonburg | VA |
| Low Country Dog Agility | clubtraining | Charleston | SC |
| Lucky Dog Academy | facilityrentaltrainingvideo | Plainfield | IL |
| Lucky Dog Agility | facilitytraining | Winterville | GA |
| Lucky Dog Resort | facilitytraining | Colorado Springs | CO |
| Lucky Dog Sports Club | facilityrentalstoretraining | Jupiter | FL |
| Lucky Dog Training Center | facilitytraining | Fort Worth | Texas |
| Lucy's Agility Blog | blog | | |
| Lynn Baitinger - Grand Blanc | training | Grand Blanc | MI |
| Lynn Baitinger - Rochester | training | Rochester | MI |
| Lyons Township Dog Training Club | clubfacilitytraining | Elmhurst | IL |