| Hesi Plantenvoeding BV ↗ | Netherlands | 80 | Athens Cannabis Expo, Canapa Mundi, CannaBusiness, CannaTrade +11 | 2026 |
| Canna ↗ | Spain, Czechia | 68 | Canapa Mundi, CannaDouro, CannaFriends, CannaTrade +14 | 2026 |
| Mills Nutrients ↗ | Netherlands | 47 | Athens Cannabis Expo, Canapa Mundi, CannaTrade, Cannafair +8 | 2026 |
| Terra Aquatica ↗ | France | 77 | Canapa Mundi, Canapa in Mostra, CannaBusiness, CannaDouro +11 | 2026 |
| Atami ↗ | Spain, Germany | 99 | Athens Cannabis Expo, BALKANNABIS EXPO, CB Expo, Canapa Mundi +18 | 2026 |
| Plagron ↗ | Netherlands | 65 | CB Expo, Canapa Mundi, CannaBusiness, CannaTrade +10 | 2026 |
| Biobizz Worldwide S.L. ↗ | Spain, Netherlands | 58 | Canapa Mundi, CannaBusiness, CannaDouro, CannaTrade +11 | 2026 |
| Advanced Nutrients ↗ | Spain, Canada | 43 | BALKANNABIS EXPO, Canapa in Mostra, CannaDouro, CannaTrade +11 | 2026 |
| Metrop ↗ | Netherlands | 29 | CannaDouro, CannaTrade, Cannafair, Cannafest +6 | 2026 |
| Advanced Hydroponics of Holland BV ↗ | Netherlands, Italy | 55 | Athens Cannabis Expo, Canapa Mundi, CannaTrade, Cannafair +9 | 2026 |
| Growth Technology Ltd ↗ | United Kingdom | 45 | 4.20 Hemp Fest, Canapa in Mostra, CannaBusiness, CannaTrade +8 | 2026 |
| BAC ↗ | Netherlands, Spain | 21 | BALKANNABIS EXPO, Canapa Mundi, CannaDouro, Cannafair +5 | 2026 |
| Xpert Nutrients ↗ | Spain | 18 | Canapa Mundi, Cannafair, Cannafest, Cultiva Hanfexpo +3 | 2026 |
| Athena Ag ↗ | United States | 17 | Cannafair, Cannafest, IndicaSativa Trade, Mary Jane Berlin +1 | 2026 |
| Monkey Soil ↗ | Spain | 17 | Canapa Mundi, Cannafest, Expogrow, IndicaSativa Trade +2 | 2025 |
| Cannaboom ↗ | Spain | 16 | Cannafest, Expogrow, Mary Jane Berlin, Spannabis | 2025 |
| Bio Nova ↗ | Netherlands, Spain | 33 | Canapa Mundi, CannaBusiness, CannaTrade, Cannafair +6 | 2022 |
| Grotek ↗ | Canada, Spain | 28 | BALKANNABIS EXPO, CB Expo, Canapa Mundi, Cannafest +5 | 2024 |
| Green House Feeding ↗ | Netherlands | 25 | CannaDouro, Cannafest, IndicaSativa Trade, Mary Jane Berlin +2 | 2026 |
| Biohorti SL - BioTabs ↗ | Spain, Netherlands | 45 | BALKANNABIS EXPO, Canapa Mundi, Canapa in Mostra, CannaDouro +10 | 2026 |
| Aptus Holland ↗ | Netherlands | 30 | CannaDouro, CannaTrade, Cannafest, Cultiva Hanfexpo +6 | 2026 |
| Dutchpro ↗ | Netherlands, Poland | 18 | CannaFriends, Cannafair, Cannafest, Cultiva Hanfexpo +4 | 2026 |
| Aptus Plant Tech ↗ | Netherlands, Germany | 15 | CannaTrade, Cannafest, Expogrow, Mary Jane Berlin +2 | 2026 |
| Guanokalong ↗ | Netherlands | 16 | Cannafair, Cannafest, Expogrow, Mary Jane Berlin +1 | 2025 |
| Biogreen Planet | Spain, Netherlands | 10 | Cannafest, Cultiva Hanfexpo, Spannabis | 2022 |
| Narcos Europe GmbH ↗ | Germany | 8 | Cannafest, Mary Jane Berlin, Spannabis | 2025 |
| Bio Nova Premium Fertilizers ↗ | Netherlands | 7 | Cannafest, IndicaSativa Trade, Mary Jane Berlin, Spannabis | 2024 |
| Top Crop ↗ | Spain | 7 | Canapa Mundi, Cannafest, IndicaSativa Trade, Mary Jane Berlin +1 | 2023 |
| BIOBIZZ WWO ↗ | Spain | 6 | CannaTrade, Cannafest, Mary Jane Berlin, Spannabis | 2025 |
| Hy-Pro ↗ | Netherlands | 33 | CannaTrade, Cannafair, Cannafest, Cultiva Hanfexpo +5 | 2024 |
| Super Strains Seeds ↗ | Netherlands | 29 | Cannabis Liberation Day, Cannafair, Cannafest, Cultiva Hanfexpo +4 | 2025 |
| Crazy Hills ↗ | Austria | 9 | Cannafair, Cannafest, Cultiva Hanfexpo, KONOPEX +2 | 2026 |
| Bio Nova international B.V. ↗ | Netherlands | 5 | Cannafest, Mary Jane Berlin, Spannabis | 2026 |
| Dragonfly Europe | United Kingdom | 4 | Cannafest, Spannabis | 2019 |
| IDROGROW ↗ | Italy | 34 | BALKANNABIS EXPO, Canapa Mundi, Canapa in Mostra, Cannafest +4 | 2026 |
| Hemp Trading ↗ | Spain | 16 | Canapa Mundi, Cannafest, Cultiva Hanfexpo, Expocannabis +2 | 2026 |
| I-Grow ↗ | Italy, Austria | 15 | Canapa Mundi, Cannafest, Cultiva Hanfexpo, IndicaSativa Trade | 2022 |
| GP LEDs ↗ | Netherlands | 5 | Cannafest, Cultiva Hanfexpo, Expogrow, Mary Jane Berlin +1 | 2019 |
| GreenPlanet Nutrients ↗ | Canada, United Kingdom | 5 | Cannafest, Mary Jane Berlin, Spannabis | 2026 |
| Grotek and H&G ↗ | United States, Spain | 2 | Cannafest, Spannabis | 2025 |