3L's main product is 3L Diamond, a suite of tools that helps you work with multiprocessor hardware. 3L Diamond delivers efficient multiprocessor applications in the quickest possible time. It reduces effort, cost, and risk, and optimizes quality and reliability at all phases of the software development process, from concept to deployed product.

3L Diamond comes in a number of editions, each targeted at hardware from a particular manufacturer.

Target systems can include different types of processor, and licences are available for each type. Individual licences allow you to build applications including one, two, or an unlimited number of processors of a particular type. Licences combine to support systems with mixed processor types. The tools can be accessed directly from the command line or a makefile, or through the Diamond Integrated Development Environment (IDE). We recommend using the IDE as it will perform many housekeeping functions for you automatically.