Marketing Email Tracking on Company Pages

I’ve just been speaking to HubSpot about this very issue. We’re a software development house and our clients are companies first and foremost. We liaise with different contacts at these companies and send marketing emails to the individuals associated with specific deals. It would be fantastic if these marketing emails were logged in company records.
We also call our customers regularly to discuss software renewals and it’s always useful to have a snapsnot of the company, which of my colleagues was in touch last, who has received marketing emails and who hasn’t opened them (particularly if they include software update notifications!)