ETM Group offers a variety of venues with different capacities, but typically, the largest venue can accommodate large events and gatherings. While I cannot provide specific figures as capacities may vary, it is generally understood that venues in the ETM Group portfolio can host several hundred attendees, making them suitable for conferences, corporate functions, and social events. For precise information regarding venue capacity, including the largest venue available, I recommend checking the current web page related to ETM Group's venue offerings. There, you will likely find detailed descriptions, including maximum capacities, amenities, and additional features that can assist you in choosing the perfect venue for your needs.