Organizations
- ADIF
- APAL Athens
- AXS MAP
- Accesibility and mobility
- AccuWeather Enterprise
- Agentschap Wegen en Verkeer
- Agenzia per l'Italia Digitale
- Airpullmann
- Alta-Velocidad-Larga Distancia-Media Distancia
- Amtrak
- Arriva
- Athens Urban Transport Organisation
- Atmo - France
- AMAT
- ADEME
- API Mobilic
- Atelier Open Data de Bordeaux Métropole
- Aachen Transport Association AVV
- AirParif