Where is core and main headquarters?

Could you please clarify where the CORE and main headquarters of the company are located? I understand that this is an important piece of information for those interested in investing or partnering with the firm. Are there any specific cities or regions that the headquarters reside in? Additionally, are there any other key locations or offices that the company operates from? It would be greatly appreciated if you could provide a detailed description of the location and any relevant information about the area.