| 2BSeeds |
| Chiltern Seeds |
| Gardener's Supply Company |
| Horticultural Products and Services (HPS) |
| Hudson Valley Seed Company |
| Jung Seeds and Plants |
| North Country Daylilies (Longlesson) |
| Olallie Daylily Garden |
| Pinetree Garden Seeds |
| Seedman.com |
| Summer Hill Seeds |
| Swallowtail Garden Seeds |
| Territorial Seed Company |
| The Natural Gardening Company |
| The Sample Seed Shop |
| Valley of the Daylilies |
