This research investigates the impact of corporate governance reforms in Philippine institutions and firms. Literature reviewed looks at the macro and micro view of corporate governance theories and the prevailing business environment. The methodology of this research applies an ethnographic approach combining both deductive and inductive inquiries with a triangulated method using interviews, media articles and participant observation. Collection of the interview data occurred over four intensive months whilst in situ in Manila, Philippines. The data was then analysed using the NVivo qualitative analysis computer program. The results of my data collection and analysis are explained and distilled in six chapters. They are: - Chapter 4: Business and Corporate Governance Environment - Chapter 5: The Regulators - Chapter 6: Business Groups: The Owners of Companies - Chapter 7: The Board and Management: The Controllers of the Company - Chapter 8: The Government Financial Institutions - Chapter 9: Corruption The thesis concludes with a chapter on a summary of the research findings and recommendations for policy and practice