There are currently four corporations with an AAA credit rating according to Standard & Poors (S&P) they are as follows;
- Automatic Data Processing (NYSE:ADP)
- Johnson & Johnson (NYSE:JNJ)
- Microsoft (NASDAQ:MSFT)
- ExxonMobil (NYSE:XOM)
Pfizer (NYSE:PFE) was downgraded to AA rating on October 16th 2009 and United Parcel Service (NYSE:UPS) was downgraded to AA- on January 9th 2008.