Supervisor & reset ICs are not a specific brand but a category of integrated circuits used in industrial and electronic applications. These ICs are designed to monitor power supply voltages and reset microcontrollers or other digital systems during power-up, power-down, or brownout conditions. They are commonly used in automotive, industrial automation, consumer electronics, and telecommunications. Leading manufacturers of these ICs include Texas Instruments (USA), STMicroelectronics (Switzerland), NXP Semiconductors (Netherlands), and Maxim Integrated (USA). These companies provide a range of supervisor and reset ICs with features like adjustable thresholds, low power consumption, and watchdog timers to ensure system reliability.