eSOL. 

Based in Tokyo, Japan, eSOL Co.,Ltd. has been a specialist in embedded software solutions and logistics systems since its founding in 1975. The company handles the entire lifecycle of these systems, from design and planning to operation and maintenance. eSOL provides a comprehensive suite of real-time operating systems (RTOS), including its Extended T-Kernel, POSIX-compliant RTOS with support for features like pthreads and inter-process communication, memory-protected process model-based RTOS, and compact, small-footprint versions. They also offer RTOS specifically designed for multi-core processors, along with software development kits tailored for many-core processors. Beyond RTOS, their product lineup features the eBinder development suite for embedded software, a range of file systems compatible with formats such as FAT12/16/32, VFAT, and exFAT for embedded applications, various software platforms, and evaluation kits. The company also develops application middleware, including graphical user interfaces (GUIs), computer vision systems, and embedded database solutions. For the automotive industry, eSOL supplies AUBIST classic and adaptive platforms, as well as tools for ECU diagnostics and reprogramming. Furthermore, eSOL engages in the development and sale of hardware devices, primarily focusing on portable terminals, automotive printers, and sensor products. They also create specialized software systems designed to address complex, evolving real-world problems. The company, originally established as ERG Co., Ltd., adopted the name eSOL Co.,Ltd. in May 2001.