PX5 RTOS

PX5 RTOS is a San Diego-based technology company specializing in advanced, fifth-generation real-time operating system solutions for deeply embedded applications. The company provides a comprehensive embedded software stack including PX5 RTOS, PX5 NET (TCP/IP networking), PX5 FILE (FAT file system), and PX5 MODULES, all designed for safety-critical systems in automotive, industrial, medical, and rail applications. Their solutions are certified to the highest levels of functional safety standards including IEC 61508 SIL 4, IEC 62304 Class C, ISO 26262 ASIL D, and EN 50128 SW-SIL 4. PX5 RTOS differentiates itself through its ultrasmall footprint (less than 1KB for minimal usage), sub-microsecond context switching performance, and native implementation of the POSIX pthreads API. This approach enables developers familiar with Linux and POSIX standards to quickly adapt to embedded development while maintaining hard real-time performance requirements. The company offers full source code with no runtime royalties, professional support services, and consulting to help customers bring safer, more secure products to market efficiently. The company positions itself as a bridge between the ease of embedded Linux development and the performance demands of resource-constrained devices. With patent-pending Pointer/Data Verification (PDV) technology and 100% statement and branch decision test coverage, PX5 emphasizes both security and reliability. Their partner ecosystem includes cloud providers, semiconductor companies, and embedded software consultants, enabling comprehensive solution delivery across various industries.