| Title | Biostimulant type | |
|---|---|---|
| Acadian | Seaweed extract | Acadian |
| Acker-Schachtelhalm extract | Plant extract | Acker-Schachtelhalm extract |
| ACTIV 0-0-5 | Seaweed extract | ACTIV 0-0-5 |
| Actiwave | Seaweed extract | Actiwave |
| Aegis Argilla | Mycorrhizal fungi | Aegis Argilla |
| Agro-Lig | Humic and fluvic acids | Agro-Lig |
| APR | Protein hydrolysate | APR |
| Asir Horto | Mix of different types | Asir Horto |
| Atonik / Chapperone / Asahi SL | Other | Atonik / Chapperone / Asahi SL |
| Auxym | Plant extract | Auxym |
