I didn't see MJ's comment above. Essentially, the same approach.
Easy Way:
If it's just a few key accounts, create email performance reports with those company names in the smart list.
Less easy way:
Create smart lists for Delivered, Opened, Bounced, Clicked with lead info, company name and email address
Export
In each report, add one column with the report type (i.e. Bounce, Delivered, etc)
Copy and paste into one Excel doc
Pivot Table