- 1400
- 3D Creative
- 4AD
- 68travel
- A-MB Ing. Miroslav Bajzík
- AAASTAVMARKET s.r.o.
- AD-joga, Ing. Miriam Bellušová
- Ada Becker
- Adiaphora - Chmelík Petr
- Admiral Films, s.r.o
- Adriena Bučková (Bartošová) ArtD
- Agenc Magyarország Kft.
- Agentura GONG
- Agentúra RADKO
- Agris Slovakia
- AKASA Trade
- Alberi
- Alena Adamíková a OraDB s.r.o.
- Alfred A. Knopf Books for Young Readers
- AllAboutBooks
