Unified Modeling Language

Radsoft (Rate)

They provide UML training and consulting.

Togethersoft (Rate)

They provide UML training and consulting.

Rational Software (Rate)

The company who hired the trhee developers of UML. They provide UML training, consulting, and tools.

Object Management Group (Rate)

Develops and provides standards for platform independent program development. This includes UML and the Common Object Request Broker: Architecture and Specification. You can find the current UML specification by searching for "Unified Modeling Language".