| 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 |
| AgBio-Endos | Mycorrhizal fungi | AgBio-Endos |
| Alginure | Seaweed extract | Alginure |
| AM 120 | Mycorrhizal fungi | AM 120 |
| Amino Expert Impuls | Protein hydrolysate | Amino Expert Impuls |
| ArgicinPlus | Mix of different types | ArgicinPlus |
| Astron | Other | Astron |
| Atonik / Chapperone / Asahi SL | Other | Atonik / Chapperone / Asahi SL |