| ENCOD | Belgium, Italy | 28 | BALKANNABIS EXPO, Canapa Mundi, CannaTrade, Cannafest +7 | 2026 |
| Deutscher Hanf Verband ↗ | Germany | 42 | CB Expo, CannaBusiness, CannaTrade, Cannabis XXL +6 | 2026 |
| Hanfparade ↗ | Germany | 15 | CannaTrade, Cannafest, Cultiva Hanfexpo, ICBC Berlin +1 | 2018 |
| Česká pirátská strana ↗ | Czechia | 10 | Cannafest, KONOPEX | 2026 |
| Hanf Museum Berlin ↗ | Germany | 10 | CannaBusiness, Cannafest | 2018 |
| KOPAC ↗ | Czechia | 8 | Cannafest, KONOPEX | 2024 |
| Wolne Konopie ↗ | Poland | 6 | Cannafest | 2019 |
| Medical Cannabis Bike Tour | Netherlands | 10 | Cannafest, Expogrow, IndicaSativa Trade, Spannabis | 2018 |
| KONOPA z.s. ↗ | Czechia | 7 | Cannafest, KONOPEX | 2026 |
| Legalizace.cz | Czechia | 5 | Cannafest | 2024 |
| AlphaCAT ↗ | Czechia, France | 9 | Cannafest, ICBC Berlin, KONOPEX, Product Earth +1 | 2025 |
| Deep Green | Germany | 7 | Cannafest, IndicaSativa Trade | 2023 |
| Charita dětem z.s. ↗ | Czechia | 3 | Cannafest | 2019 |
| Legalizace z.s. | Czechia | 3 | Cannafest | 2019 |
| Research Nature Institute ↗ | Slovenia | 3 | Cannafest | 2023 |
| SHOGUN FERTILISERS ↗ | United Kingdom | 6 | Cannafest, Product Earth | 2025 |
| Cannalabs by EkotechLAB ↗ | Poland | 5 | CannaTrade, Cannafest, Kanaba Fest, Mary Jane Berlin | 2024 |
| Arnika ↗ | Czechia | 4 | Cannafest | 2016 |
| CSC Plauen | Germany | 3 | Cannafest, Mary Jane Berlin | 2017 |
| UNUECO | Czechia | 3 | Cannafest | 2018 |
| BitCanna Limited ↗ | Netherlands | 2 | Cannafest | 2019 |
| Česká zemědělská univerzita ↗ | Czechia | 2 | Cannafest | 2024 |
| Klub lidové tvorby | Czechia | 2 | Cannafest | 2018 |
| PEST ↗ | Slovenia | 2 | Cannafest | 2019 |
| Valašská Konopa p.s. ↗ | Czechia | 2 | Cannafest | 2018 |
| Dutch Garden Supplies ↗ | Austria, Netherlands | 16 | Cannabis Europa, Cannafest, Cultiva Hanfexpo, ICBC Berlin +2 | 2026 |
| Paralab ↗ | Portugal, Spain | 15 | Athens Cannabis Expo, CannaDouro, CannaTrade, Cannafest +4 | 2024 |
| Ganesha Seeds ↗ | Netherlands | 14 | CannaDouro, CannaFestival, Cannafair, Cannafest +4 | 2025 |
| Cultihemp Distribuciones ↗ | Spain | 7 | Cannafest, Mary Jane Berlin, Spannabis | 2026 |
| Legalizace | Czechia | 6 | Cannafest, KONOPEX | 2021 |
| Canna Capital Group AG ↗ | Switzerland | 5 | CannaTrade, Cannafest, Mary Jane Berlin | 2026 |
| 8000Kicks ↗ | Portugal | 4 | CannaTrade, Cannafest, Mary Jane Berlin | 2024 |
| ANRAC | Morocco | 4 | Cannabis Europa, Cannafest, ICBC Berlin | 2025 |
| CAM ↗ | Austria | 4 | Cannafest, Cultiva Hanfexpo | 2012 |
| Smokenhagen ↗ | Denmark | 4 | Cannafest, Mary Jane Berlin | 2026 |
| CANEBE sro ↗ | Czechia | 3 | Cannafest, Product Earth | 2024 |
| Ellutia ↗ | United Kingdom | 3 | Cannafest, Mary Jane Berlin | 2019 |
| Konopí je lék ↗ | Czechia | 3 | Cannafest, KONOPEX | 2022 |
| Spectralfingerprints ↗ | Slovenia | 3 | Cannafest, Mary Jane Berlin | 2026 |
| Alpine Biolabs ↗ | Austria | 2 | Cannafest, Mary Jane Berlin | 2026 |
| Aqua Test | Czechia | 2 | Cannafest | 2019 |
| Český konopný klastr, z.s. ↗ | Czechia | 2 | CB Expo, Cannafest | 2023 |
| Fundacja Wiecej Przestrzeni | Poland | 2 | Cannafest | 2014 |
| Konopa o.s. ↗ | Czechia | 2 | Cannafest | 2016 |
| Legalizace o.s. | Czechia | 2 | Cannafest | 2016 |
| More Space Foundation ↗ | Poland | 2 | Cannafest | 2016 |
| Tradelinc B.V. ↗ | Netherlands | 2 | Cannafest | 2021 |
| 420 Hemp Fest ↗ | Italy | 1 | Cannafest | 2017 |
| ARROWS advokátní kancelář,s.r.o. ↗ | Czechia | 1 | Cannafest | 2023 |
| Asociace konopných klubů, z.s. | Czechia | 1 | Cannafest | 2023 |
| ASSOCIAZIONE CANAPA SATIVA ITALIA ↗ | Italy | 1 | Cannafest | 2025 |
| Cannarep Global | Israel | 1 | Cannafest | 2025 |
| Česká pirátské strana ↗ | Czechia | 1 | Cannafest | 2016 |
| CodeKeef | Croatia | 1 | Cannafest | 2018 |
| Czech University of Life Sciencies ↗ | Czechia | 1 | Cannafest | 2025 |
| Fakulta agrobiologie | Czechia | 1 | Cannafest | 2018 |
| Feptest Labservices ↗ | Hungary | 1 | Cannafest | 2021 |
| Hnutí Duha Olomouc ↗ | Czechia | 1 | Cannafest | 2016 |
| HydroGarden | LUMii | Botanicare ↗ | United Kingdom | 1 | Cannafest | 2019 |
| Iris diagnostika | Czechia | 1 | Cannafest | 2011 |
| ISI-Europa | Austria | 1 | Cannafest | 2010 |
| KOPAC, z.s. ↗ | Czechia | 1 | Cannafest | 2022 |
| LabCore ↗ | Slovenia | 1 | Cannafest | 2023 |
| Legal Publishing, s.r.o. ↗ | Czechia | 1 | Cannafest | 2022 |
| Motagon Cannabis ↗ | Czechia | 1 | Cannafest | 2024 |
| Motagon s.r.o. ↗ | Czechia | 1 | Cannafest | 2025 |
| Petice za léčebné konopí ↗ | Czechia | 1 | Cannafest | 2013 |
| Program Hard&Smart ↗ | Czechia | 1 | Cannafest | 2025 |
| Racionální regulace RARE ↗ | Czechia | 1 | Cannafest | 2025 |
| Sativa - Manufacture ↗ | Czechia | 1 | Cannafest | 2019 |
| SOMACAN ↗ | Morocco | 1 | Cannafest | 2023 |
| Ultrabio Werke GmbH ↗ | Germany | 1 | Cannafest | 2022 |
| Výzkumný ústav Cannasan ↗ | Czechia | 1 | Cannafest | 2022 |