| △Nombre▼≋ | ▲País▼≋ | ▲Provincia▼ | ▲#▼ |
|---|---|---|---|
| John Wick Presents | EE.UU. | Arizona | 5 |
| Jolly Roger Games | EE.UU. | Commerce, CA | 1 |
| Jove HBJ | EE.UU. | New York City | 1 |
| Ediciones Júcar | España | Asturias | 2 |
| Kadokawa Shoten | Japón | Tokio | 10 |
| Karras | España | Granada | 1 |
| Kelonia Editorial | España | Valencia | 1 |
| Kokapeli Ediciones | España | Desconocido | 1 |
| Kosmos | Alemania | Stuttgart | 1 |
| Labor | España | Barcelona | 1 |
| Laboratory | EE.UU. | Seattle, Washington | 1 |
| Editorial Laertes | España | Barcelona | 4 |
| Lamentations of the Flame Princess | EE.UU. | Unknown | 2 |
| Lancer Books | EE.UU. | Nueva York | 3 |
| Editorial Lanzallamas | Costa Rica | San José | 1 |
| Larousse | Francia | París | 1 |
| Last Gasp Eco-Funnies | EE.UU. | California | 2 |
| Lectura Plus | España | Barcelona | 1 |
| Legendaria Ediciones | España | Asturias | 3 |
| Lethe Press | EE.UU. | New Jersey | 1 |
| Listenable Records | Francia | Wimereux, Hauts-de-France | 1 |
| Liveright Publishing Corporation | EE.UU. | Nueva York | 2 |
| Livres de l'Ours | Francia | Desconocida | 1 |
| Looney Labs | EE.UU. | Maryland | 1 |
| Ludonova | España | Cordoba | 3 |