For its fourth survey [PDF] of trends in corporate social responsibility (CSR) or sustainability reporting, PricewaterhouseCoopers (PwC) reviewed 602 companies listed in five Standard & Poor's indexes...Throughout its report, PwC highlighted examples of best practice in sustainability reporting, and identified 40 companies that do so. US-based companies among them included Campbell Soup, Chevron, Coca-Cola, Exxon Mobil, Ford Motor, Intel, and Nike.