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About Us

When James O. McKinsey founded McKinsey in 1926, he could not have imagined the reach his small firm would eventually have. Eighty-five years later, the firm has grown into a
global partnership serving two-thirds
of the Fortune 1000.

1920s1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s


1950sThe period immediately following World War II ushered in an era of internationalism. Bolstered by the emergence of a more highly integrated world economy, we established our first international office in London in 1959. And when a South American oil company engaged us to assess its global operations, we seized the opportunity to test our "one firm" approach in the laboratory of the world.

In the US and abroad, we acquired a robust portfolio of new blue chip clients, including major government and military organizations, top conglomerates, and several key defense contractors. Our White House staffing study for President Dwight D. Eisenhower led to the institution of a set of administrative procedures that remain in force today.

The 1950s also marked the debut of our nonprofit efforts. The American Red Cross was among our first nonprofit clients.