6. Deloitte
Headquarters: United Kingdom
Number of employees: 244.400
Deloitte is a privately-owned and guaranteed-limited company which forms the ‘Big Four’ dealing with accounting issues. Even though headquartered in London, today New York City is a new location. Thanks to emerging, the official name is changed to Deloitte Touche Tohmatsu Limited. With its 244,400 employees, the company is a worldwide brand in over 150 countries. The boosting raise in revenues generated during ten years of committed work, from 2006 until 2016 with the difference of almost 8.5 billion US dollars.