55 selected
- A & J
- A.C.M.E.
- A1 Models
- Aare Valley Models
- Acar
- Adolph Schumann
- ADP-Modelle
- AFAN
- AgungHobby
- AHM
- Aiguebelle
- Aiguillage Modellisme
- Airfix
- AJc.c
- Ak-Sar-Ben
- AKU
- Alain Plante
- Alan Curtis Models
- Aldinga Models
- Altren
- Amarelis
- American Flyer
- American N Brass
- American Z Line (AZL)
- Anbrico
- Aole
- Aoshima
- APC
- Arno
- Arnold
- Arnold-Hornby
- Art'N
- Artitec
- Artrain
- Aru Nine
- ASC
- ASM
- Aspen
- Associated Model Makers
- Aster Hobbies
- Atelier Jörg Arfmann
- Atelier N 160
- Athabasca Scale Models
- Athearn
- ATI
- Atlantic Steam & Electric Co
- Atlas
- ATM
- Attic de Papa
- Au Pullman
- Auhagen
- Aurora
- Auscision
- Aust N Rail
- Aztec
- Not filled in