Materialize is a streaming SQL database. Organisations write standard SQL queries over continuously changing data, and results stay current as new data arrives. The company describes it as a live context layer for applications and agents. It is offered as a fully managed cloud service, as a self-managed deployment in a customer's own cloud, and as a local emulator for development and testing.
Materialize, Inc. is a US company. Its privacy policy gives a New York address and states that the services are hosted and operated in the United States. The homepage names venture investors, including Lightspeed, Kleiner Perkins and Redpoint; no majority owner is identified. Transfers of personal data are covered by a data processing agreement incorporating the European Commission's standard contractual clauses. For a European organisation, the cloud service therefore runs on US infrastructure under US jurisdiction. The source code is available under the Business Source License 1.1, converting to Apache 2.0 after four years, so it is source-available rather than open source.