- USA: Wide Area Augmentation System (WAAS)
- Japan: Michibiki Satellite Augmentation System (MSAS)
- India: GPS-aided GEO-Augmented Navigation (GAGAN)
- China: BeiDou SBAS (BDSBAS) (in development)
- South Korea: Korea Augmentation Satellite System (KASS) (in development)
- Russia: System for Differential Corrections and Monitoring (SDCM) (in development)
- ASECNA: SBAS for Africa and Indian Ocean (A-SBAS) (in development)
- Australia and New Zealand: Southern Positioning Augmentation Network (SouthPAN) (in development)