BigID specialises in (sensitive) data discovery and classification. Unlike other vendors in this space BigID has been built from the ground up to concentrate in this area.
There are several things about BigID that make it stand out. To begin with, there is the extent of its support for NoSQL databases, which is broader than anyone else we are aware of. Secondly, there is the ability to discover sensitive data not just for data at rest but also data in motion. This ability to monitor data pipelines is becoming increasingly important. Thirdly, there is the whole approach to discovery and classification, based on machine learning.