A corporate collapse typically involves the insolvency or bankruptcy of a major business enterprise.
The following list of corporations involved major collapses, through the risk of job losses or size of the business, and meant entering into insolvency or bankruptcy, or being nationalised or requiring a non-market loan by a government.
Lehman Brothers' financial strategy in 2003 was to invest heavily in mortgage debt, in markets which were being deregulated from consumer protection by the US government.
Losses mounted, and Lehman Brothers was forced to file for Chapter 11 bankruptcy after the US government refused to extend a loan.
Barclays, Nomura and Bain Capital purchased the assets which were not indebted.