| Royal Queen Seeds ↗ | Spain, Netherlands | 78 | Athens Cannabis Expo, BALKANNABIS EXPO, CB Expo, Canapa Mundi +15 | 2026 |
| Sweet Seeds ↗ | Spain, Netherlands | 77 | 4.20 Hemp Fest, Athens Cannabis Expo, BALKANNABIS EXPO, Canapa Mundi +13 | 2025 |
| Paradise Seeds ↗ | Netherlands | 76 | 4.20 Hemp Fest, Canapa Mundi, CannaTrade, Cannabis Tipo Forte +11 | 2026 |
| Green House Seeds ↗ | Netherlands | 78 | BALKANNABIS EXPO, Canapa Mundi, Canapa in Mostra, CannaTrade +12 | 2026 |
| Dutch Passion ↗ | Netherlands, Spain | 61 | Athens Cannabis Expo, BALKANNABIS EXPO, Canapa Mundi, CannaTrade +9 | 2026 |
| Sensi Seeds ↗ | Netherlands | 83 | CB Expo, Canapa Mundi, CannaBusiness, CannaDouro +12 | 2026 |
| Barney's Farm Genetics ↗ | Netherlands | 62 | Athens Cannabis Expo, CB Expo, Canapa Mundi, Canapa in Mostra +13 | 2026 |
| FAST BUDS ↗ | Spain, Netherlands | 46 | Athens Cannabis Expo, BALKANNABIS EXPO, Canapa Mundi, Cannafest +7 | 2026 |
| Delicious Seeds ↗ | Spain, Netherlands | 38 | Canapa Mundi, Cannafair, Cannafest, Cultiva Hanfexpo +5 | 2026 |
| Vision Seeds ↗ | Netherlands | 36 | Canapa Mundi, Canapa in Mostra, Cannafair, Cannafest +4 | 2025 |
| Buddha Seeds ↗ | Spain | 28 | BALKANNABIS EXPO, Canapa Mundi, Cannabizz Warsaw, Cannafest +5 | 2026 |
| Dinafem ↗ | Spain | 49 | 4.20 Hemp Fest, Canapa Mundi, Canapa in Mostra, Cannabizz Warsaw +11 | 2020 |
| Serious Seeds ↗ | Netherlands, Belgium | 46 | CannaTrade, Cannafair, Cannafest, Cultiva Hanfexpo +5 | 2026 |
| Humboldt Seeds ↗ | Austria, Spain | 18 | Canapa Mundi, Canapa in Mostra, Cannafest, Hemp & CBD Expo +3 | 2025 |
| Silent Seeds ↗ | Netherlands | 15 | Cannafair, Cannafest, IndicaSativa Trade, Mary Jane Berlin +2 | 2026 |
| City Seeds Bank ↗ | Netherlands, Spain | 21 | 4.20 Hemp Fest, Canapa Mundi, Canapa in Mostra, Cannabis XXL +5 | 2025 |
| KANNABIA SEED COMPANY ↗ | Spain | 16 | CannaTrade, Cannafest, IndicaSativa Trade, KONOPEX +2 | 2026 |
| FastBuds American Autoflowers ↗ | Spain, United States | 10 | Cannafest, IndicaSativa Trade, Spannabis | 2025 |
| Ganesha Seeds ↗ | Netherlands | 14 | CannaDouro, CannaFestival, Cannafair, Cannafest +4 | 2025 |
| World of Seeds ↗ | Spain | 11 | Canapa Mundi, Cannafest, IndicaSativa Trade, Spannabis | 2024 |
| Humboldt Seed Company ↗ | United States, Spain | 10 | Cannafest, ICBC Berlin, IndicaSativa Trade, Mary Jane Berlin +1 | 2026 |
| Zoe's seeds ↗ | Italy | 12 | 4.20 Hemp Fest, Canapa Mundi, Canapa in Mostra, IndicaSativa Trade | 2019 |
| CBD Seed Europe ↗ | Bulgaria | 6 | Cannabis Business Europe, Cannafest, IndicaSativa Trade, Mary Jane Berlin | 2025 |
| DUTCHFEM SEEDS ↗ | Netherlands | 6 | Athens Cannabis Expo, IndicaSativa Trade, Product Earth | 2023 |
| Super Sativa Seed Club ↗ | Netherlands | 6 | Cannafest, IndicaSativa Trade, Mary Jane Berlin | 2026 |
| House of the Great Gardener ↗ | Canada | 8 | Cannafest, Cultiva Hanfexpo, IndicaSativa Trade | 2019 |
| Trikoma Seeds ↗ | Spain | 7 | BALKANNABIS EXPO, Canapa Mundi, Cannafest, IndicaSativa Trade +1 | 2023 |
| Erba di Calabria | — | 5 | Canapa Mundi, IndicaSativa Trade | 2026 |
| Terpethic | — | 4 | IndicaSativa Trade | 2025 |
| Quantamon Seeds ↗ | — | 6 | Canapa Mundi, IndicaSativa Trade | 2023 |
| Doweedo ↗ | — | 3 | IndicaSativa Trade | 2026 |
| PANORAMIX GENETICS | Italy | 8 | Canapa Mundi, Canapa in Mostra, IndicaSativa Trade | 2019 |
| GURUPLANTGENETIK | Spain | 6 | Cannafest, IndicaSativa Trade, Mary Jane Berlin | 2019 |
| Primitiae Genetics | — | 2 | IndicaSativa Trade | 2025 |
| Greenlane ↗ | Netherlands, United States | 6 | Canapa Mundi, Cannafest, Cultiva Hanfexpo, IndicaSativa Trade +2 | 2023 |
| MICROGENETICA ↗ | — | 6 | Canapa in Mostra, Cannabis Liberation Day, IndicaSativa Trade | 2019 |
| Gli Elfi di Calabria ↗ | — | 5 | IndicaSativa Trade | 2026 |
| Hierba del diablo ↗ | Spain | 5 | Canapa Mundi, IndicaSativa Trade | 2023 |
| Ghost Farm | — | 3 | Canapa Mundi, IndicaSativa Trade | 2020 |
| Legal Weed ↗ | — | 2 | Cultiva Hanfexpo, IndicaSativa Trade | 2022 |
| Akacia | — | 1 | IndicaSativa Trade | 2024 |
| Beautiful Beans Seeds ↗ | — | 1 | IndicaSativa Trade | 2025 |
| PARADISE SEEDS, AMSTERDAM ↗ | — | 1 | IndicaSativa Trade | 2019 |