| ▲Nombre▽⊗ | ▲País▼≋ | ▲Provincia▼ | ▲#▼ |
|---|---|---|---|
| Editorial Andina (EASA) | España | Madrid | 1 |
Anaya  | España | Madrid | 3 |
| Anagrama | España | Barcelona | 2 |
| Alpha Decay | España | Barcelona | 3 |
| Editorial Almagesto | Argentina | Buenos Aires | 2 |
| Editorial Alma | España | Barcelona | 8 |
| Alianza Editorial | España | Madrid | 54 |
| Alfaguara | España | Madrid | 4 |
| Aleta Ediciones | España | Valencia | 3 |
| Alderac Entertainment Group (AEG) | EE.UU. | San Clemente, CA. | 2 |
| Albino Dragon | EE.UU. | Texas | 1 |
| Albin Michel | Francia | París | 1 |
| Alberdania | España | Guipuzcoa | 1 |
| Alamut | España | Madrid | 1 |
| Akal | España | Madrid | 4 |
| Grupo AJEC | España | Granada | 5 |
| AEFCTF | España | Granada | 4 |
| Adventure Simulations | Australia | Melbourne | 1 |
| Adventure Comics | ¿? | ¿? | 3 |
| Adiax | Argentina | Buenos Aires | 1 |
| Acervo | España | Barcelona | 14 |
| Acantilado | España | Barcelona | 2 |
| Abraxas | España | Barcelona | 2 |
| ABDO Publishing | EE.UU. | Edina, Minnesota | 1 |