Here is a list of 140 Sensors categories. It encompasses a wide range including tactile sensors, ultrasonic sensors, fiber optic sensors, gyroscopic (gyro) sensors, etc. You can search for an overview, principle, and usage of each category, as well as find manufacturers and distributors.
*This ranking is solely among the companies registered with Metoree, sorted by the number of employees. Please use this as a rough guide to understand their scale.