If you're looking to get a quick summary of activity by known company accounts in your database, create a filter based on the activity requirements you want (say - contacts that have visited any webpage greater than 2X in the last month). Next, go to the Reporting area and search for the report: "Contact Field Values by Contact Filter". Select Company as the Contact Field and select the Filter you just created. The end result should be something like this:
You can also further narrow down this filter by segmenting based on the sales rep. This could be a good report to send to the sales rep daily or weekly. You could even create campaigns based on this data.
This tip was courtesy of Rob Heerdegen