A comparison of the Big Four Professional Service Firms

This working paper provides a description of the Big Four Professional Service Firms (PSF): PwC, EY, KPMG and Deloitte. The working paper is based on publicly available information. It provides an overview of the Big Four PSFs, including their history, revenue, values, services and industries. The working paper describes the four PSFs according to the following topics: organization, recruitment, way of working, technology, corporate social responsibility, and alliances and clients. Overall, the paper offers a brief overview on how the PSFs create value.