Companies
| 21st | Observability and analytics |
| Ada | Analytics |
| Aleph | AI observability |
| Alguna | Usage metering data warehouse (EU) |
| Ambral | Observability |
| Applied Compute | Analytics database |
| Ashby | Analytics |
| Astronomer | High-performance, columnar database management system (Astronomer Observe Only) |
| AthenaHQ | Hosted analytics database infrastructure |
| Basedash | — |