| 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 |
| BULK SEED BANK ↗ | Slovenia, United Kingdom | 38 | Athens Cannabis Expo, BALKANNABIS EXPO, Canapa Mundi, Canapa in Mostra +6 | 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 |
| Kannabia ↗ | Spain | 43 | Canapa Mundi, CannaDouro, Cannafair, Cannafest +8 | 2024 |
| Positronics Seeds ↗ | Spain, United States | 30 | Canapa Mundi, Cannafair, Cannafest, Cultiva Hanfexpo +6 | 2026 |
| Dinafem ↗ | Spain | 49 | 4.20 Hemp Fest, Canapa Mundi, Canapa in Mostra, Cannabizz Warsaw +11 | 2020 |
| Pyramid Seeds ↗ | Spain | 28 | Canapa Mundi, Cannafest, Cultiva Hanfexpo, Expocannabis +5 | 2024 |
| Exoticseed ↗ | Netherlands, Spain | 29 | Canapa Mundi, CannaFriends, Cannafair, Cannafest +5 | 2026 |
| Blimburn Seeds ↗ | Spain | 24 | BALKANNABIS EXPO, Canapa Mundi, Cannafest, Cultiva Hanfexpo +6 | 2026 |
| Humboldt Seeds ↗ | Austria, Spain | 18 | Canapa Mundi, Canapa in Mostra, Cannafest, Hemp & CBD Expo +3 | 2025 |
| GEA SEEDS ↗ | Spain | 14 | Canapa Mundi, Cannafair, Mary Jane Berlin, Spannabis | 2026 |
| City Seeds Bank ↗ | Netherlands, Spain | 21 | 4.20 Hemp Fest, Canapa Mundi, Canapa in Mostra, Cannabis XXL +5 | 2025 |
| KALASHNIKOV SEEDS ↗ | Russia, Spain | 15 | Athens Cannabis Expo, Canapa Mundi, Cannafest, Cultiva Hanfexpo +4 | 2022 |
| Ministry of Cannabis ↗ | Spain, Netherlands | 12 | Canapa Mundi, Cannafest | 2019 |
| Zoe's seeds ↗ | Italy | 12 | 4.20 Hemp Fest, Canapa Mundi, Canapa in Mostra, IndicaSativa Trade | 2019 |
| Biological Seeds ↗ | Italy, Spain | 10 | Canapa Mundi, Canapa in Mostra, Cannafest, IndicaSativa Trade | 2018 |
| DINAFEM SEEDS / HUMBOLDT SEEDS ↗ | Spain | 5 | Athens Cannabis Expo, BALKANNABIS EXPO, Canapa Mundi, Spannabis | 2022 |
| Quantamon Seeds ↗ | — | 6 | Canapa Mundi, IndicaSativa Trade | 2023 |
| Hempatia ↗ | Italy | 13 | Canapa Mundi, Canapa in Mostra, CannaTrade, Cultiva Hanfexpo +1 | 2020 |
| PANORAMIX GENETICS | Italy | 8 | Canapa Mundi, Canapa in Mostra, IndicaSativa Trade | 2019 |
| Genehtik ↗ | Spain, Italy | 7 | Canapa Mundi, Canapa in Mostra, Expogrow, Spannabis | 2023 |
| Grass O Matic | Spain | 6 | Canapa Mundi, Cannafest, Expogrow, GrowMed +1 | 2015 |
| Top Tao Seeds ↗ | Czechia | 5 | Canapa Mundi, CannaFestival, Cannafest, HamCan +1 | 2025 |
| Specialized Seeds ↗ | Spain | 3 | Canapa Mundi | 2023 |
| Ministry of Cannabis Seeds ↗ | Spain | 2 | Canapa Mundi | 2019 |
| Attitude Distribution ↗ | Spain | 4 | Canapa Mundi, Expogrow, Spannabis | 2016 |
| Panoramix | Italy | 4 | Canapa Mundi, IndicaSativa Trade | 2016 |
| Green House Farm | Italy | 1 | Canapa Mundi | 2016 |
| Humboldt ↗ | United States | 1 | Canapa Mundi | 2016 |