| ID | Name | Type |
|---|---|---|
| #21292 | Alberto Peruzzo Editoriale | B |
| #563 | Alberto R. Cuesta | + |
| #564 | Alberto Rojo Garcia | + |
| #565 | Alberto Ruiz Gordillo | + |
| #566 | Alberto Salvi | + |
| #567 | Alberto Sampler | + |
| #568 | Alberto Suner | + |
| #569 | Alberto Toledo | + |
| #20687 | Alberto Vigneron | + |
| #570 | Alberto Vilades Laborda | + |
| #571 | Alberto Vinuela | + |
| #23249 | Albi Lico | + |
| #16538 | Alboran70 | - |
| #572 | Alby | ? |
| #573 | Alchemist PD | Z |
| #574 | Alchemist Research | Z |
| #575 | Alchemist Software | Z |
| #576 | Alchemy Software | Z |
| #21257 | Alcides da Silva Pereira | + |
| #577 | Aldeco | ? |