ASTC
- ASX Settlement and Transfer Corporation
- Active Skid and Traction Control
- Adaptive Scalable Texture Compression
- Alamo Scouts Training Center
- Alice Springs Town Council
- All Students Take Calculus
- American Society of Theatre Consultants
- Antonov ASTC
- Assam State Transport Corporation
- Association of Science-Technology Centers
- Succinylornithine transaminase