GeoMesa is an open-source suite of tools for storing, indexing and analysing spatio-temporal data at large scale. It adds spatial and temporal indexing on top of databases such as Accumulo, HBase, Cassandra and Redis, supports near real-time stream processing via Apache Kafka, serves data through GeoServer using OGC protocols such as WFS and WMS, and supports Apache Spark for distributed analytics. It runs on the customer's own infrastructure, so there is no vendor-hosted service. It is an option for organisations replacing proprietary spatial big-data stacks.
The project is maintained within the LocationTech working group at the Eclipse Foundation, a Belgian not-for-profit association based in Brussels. Its repository states the Apache License 2.0; the latest release, 5.4.0, appeared in October 2025. Because the software is deployed on infrastructure the operator controls, the sovereignty question is where that infrastructure runs. For a European organisation the code can be run and audited on European infrastructure, and data remains where the operator places it.