Green Hills Software is the #1 independent RTOS provider in terms of annual revenue, providing a single source solution for most every 32- or 64-bit processor.

After more than 16 years experience working with partner RTOSes like VxWorks, OSE, Nucleus, and VRTX, Green Hills Software entered the RTOS market in 1998. After only five years, Green Hills achieved the #2 position due in part to technologies such as memory protection, guaranteed resource availability, file system, and more.

Green Hills achieved the number one position in sales providing a scalable family of operating systems, networking support and development tools including our award winning MULTI IDE, performance accelerating compiler and productivity enhancing debugger.

Customer adoption of our µ-velOSity and INTEGRITY RTOSes has made us the world's largest independent RTOS company, providing the most secure and reliable RTOS available today.