Since opening of our Paris office in 1964, McKinsey has been advising the top management of leading French and international companies, as well as public-sector institutions and nonprofit organizations. We support our clients over the long term, helping them define strategic direction and implement the changes needed to achieve sustainable performance improvement. Through our network of some 100 offices in 56 countries, McKinsey operates as a single global firm, offering clients the expertise of 9,000 consultants with specializations across industries and functions. Our collaborative approach, commitment to knowledge development, and culture of excellence enable our consultants to constantly develop their skills.