High Quality Content by WIKIPEDIA articles! Open Kernel Labs (OK Labs) is a privately owned company that develops microkernel-based hypervisors and operating systems for embedded systems. The company was founded in 2006 by Steve Subar and Gernot Heiser as a spinout from NICTA. It is headquartered in Chicago, while research and development is located in Sydney, Australia.OKL4 is an open source system software platform for embedded systems that can be used as a hypervisor as well as a simple real-time operating system with memory protection. The OKL4 "microvisor" is based upon the L4 microkernel. OKL4 is a Type I Embedded Hypervisor and runs on single- and multi-core platforms based on ARM, x86 and MIPS processors.