@sberry11 - Are you assigning lifecycle stages to companies?
Either way, the lists would be similar, it would just be a company list that says:
- All companies with contacts who have downloaded something
- All companies with contacts who have downloaded something AND “Date became a marketing qualified lead” is known
- All companies with contacts who have downloaded something AND “Date became a customer” is known
You could just choose to use the date field on the related contact record or the company record.