Usage and Query Monitoring

Appfluent Technology
Query Auditor allows you to collect and analyze queries generated by business intelligence reporting tools.
http://www.appfluent.com/

BEZ Systems
Offers strategic performance management software and consulting services for IBM DB2, Oracle, and Teradata database applications.
http://www.bez.com/

Embarcadero Technologies - Performance Center
Provides database professionals with a portal into complete performance management.
http://www.embarcadero.com/products/performancecenter/index.html

Guardium, Inc.
Provider of database security and regulatory compliance solutions for relational database environments.
http://www.guardium.com/

Teleran Technologies, Inc.
Resource management software suite that monitors, manages, guides and secures how people access and interact with data in business intelligence and data warehouse applications.
http://www.teleran.com/