| Baker Creek Heirloom Seed Co. |
| Colonial Creek Farm |
| Crintonic Gardens |
| Diane's Flower Seeds |
| Johnny's Selected Seeds |
| Outsidepride |
| Perennial Obsessions |
| Pinetree Garden Seeds |
| Prairie Moon Nursery |
| Richters Herbs |
| RobinSeeds |
| Strictly Medicinal Seeds (formerly Horizon Herbs) |
| Swallowtail Garden Seeds |
| The Sample Seed Shop |
| Young's Garden |
