Datawatch Corporation (now part of Altair) was an American software company that creates and sells self-service data preparation solutions.

In the beginning, Datawatch designed, manufactured, and marketed computer workstations and peripherals that conformed to the U.S. government’s TEMPEST security standard for processing classified information.

Personics’ principal product was Monarch, a software program that provided data access, translation, and reporting capabilities to users of networked PCs.

[6] Datawatch's technology relies on in-memory OLAP (Online Analytical Processing) cubes, which are displayed through a series of visualizations including treemaps.

This allows the user to load data, select variables and hierarchical structures, and navigate through the resultant visualization, filtering, zooming and drilling (sometimes called slicing and dicing), to identify outliers, correlations and trends.

[7] This support for streaming data with its products has allowed financial institutions such as JPMorgan Chase, Citigroup, Citadel, and BlackRock to implement the Datawatch software within their real-time trading and risk applications.