I’m curious to know what industry you work in, what version of SharePoint you are using, and how many users are in your network?
I work in higher education. Our internet is on SP 2010 and we will be launching our Intranet in August using SP 2013. We have 38,000 faculty, staff and students.
I work at a small financial services company, we only have about 400 employees. We are using SharePoint 2010 Enterprise on premises. We also have our customer extranet built in SharePoint same version, it has a few thousand users I believe.