Reporting Spam Misusing Other Compaies' Logos

I get a LOT of phishing spam doing a credible job (to the untrained observer) of mimicking offers from companies, emails that I am sure are hooking a lot of unsuspecting people for confidential info and likely spreading malware.  Is there a central place these emails can be forwarded so companies can pursue chasing down the perps (or whatever)?  I have reported to subject companies (including Symantec) where I can find an email address, but finding them is getting harder and harder.