Here is a list of 30 Boards & Circuit Boards categories. It encompasses a wide range including universal boards, evaluation boards, printed circuit boards (pcb), vme boards, 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.