Green Hills Software
The company's platform-independent, certified safe and secure real-time operating systems and embedded development solutions support the broadest range of hardware and software platforms. In 2008, the Green Hills INTEGRITY-178 RTOS was the first and only operating system to be certified by the NSA to EAL 6+ High Robustness, the highest level of security ever achieved for any software product. Only an EAL 6+ High Robustness operating system is certified to protect high value resources at risk of attack from hostile and well-funded attackers.