Massachusetts Institute of Technology (Not affiliated with MIT Australia) has an online collection of teaching case studies available. These are open source/ creative commons so freely available and can be used.
McKinsey & Company
McKinsey & Company is a US multinational strategy advisory and management consulting firm that offers services to the government and corporate sector and other organizations. Their website provides access to a number of free case studies
Harvard Business Review Cases Website - Free online
Harvard Business Review - via MIT subscription
Harvard Business Publications have a reputation for publishing the best case studies, and are regularly sought after by students and lecuturers.
MIT does not have access to the main service, however there are cases available via the HBR journal contents. You can do a full text search of the journal via our subscription, searching for "case study" keywords - you can also search the HBR website.
University of British Columbia: Open Case Studies
Recognised Canadian University provides access to a number of case studies, primarily business focused.
The Case Centre
The case centre site sells Business cases, but does provide some free ones on its website
ICMR - IBS Center for Management Research
This service sells cases, but does provide a range of free ones on its website
Financial Times - Business School Cases
30 or so business school cases covering made available by the Financial Times Newspaper.
Stanford Graduate School of Business - Free Cases
Free case from Stanford University. These cases are sorted by filter on the website.
Ivey Business School (UWO) Free Cases
Free case studies from one of the top publishers of business cases globally.