| Title | Biostimulant type | |
|---|---|---|
| Acadian | Seaweed extract | Acadian |
| Acker-Schachtelhalm extract | Plant extract | Acker-Schachtelhalm extract |
| Actiwave | Seaweed extract | Actiwave |
| Aegis Argilla | Mycorrhizal fungi | Aegis Argilla |
| Agro-Lig | Humic and fluvic acids | Agro-Lig |
| Alge | Seaweed extract | Alge |
| Amalgerol | Mix of different types | Amalgerol |
| Aminoplant | Protein hydrolysate | Aminoplant |
| Atonik / Chapperone / Asahi SL | Other | Atonik / Chapperone / Asahi SL |
| Auxym | Plant extract | Auxym |
