Overview: The phrase corporate culture is shorthand for the body of formal rules and informal customs that characterize how a given company organizes itself, conducts business and treats its staff. It is perhaps more precise to talk instead about organizational culture, since the same issues pertain to organizations of all sorts, such as nonprofits, governmental agencies, partnerships and sole proprietorships, and not just to for-profit enterprises that are legally constituted as corporations.
See our article that offers tips for choosing employers, which addresses some of the following aspects of corporate culture from slightly different angles.