No. 6: Enron
Company value at time of bankruptcy: $65 billion
It wasn’t bad deals that killed Enron, but a bunch of bad eggs in the accounting department of the energy giant. Enron now is synonymous with cooking the books, and resulted in a host of new regulations, including Sarbanes Oxley, to help prevent “creative accounting” among publicly traded corporations. The total “value” of the company, if that word can be used, was about $65 billion at the time it went under. Parts of Enron still exist under different names and owners, but largely were sold off to satisfy creditors.