Description InterWorking Labs (IWL) encourages tech companies to play pretend. Its testing and verification software helps IT managers, developers, and test engineers think through "what ifs" and find and fix bugs in next generation network devices. Its SilverCreek line of testing and verification software (for networking hardware and software, wireless systems, cable television, and embedded systems) verifies operations and checks for vulnerabilities. Its Boreal and Maxwell tools check for network security vulnerabilities and impairments. The company was co-founded in 1993 by Chris Wellens and Marshall Rose.