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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

1940s

1940sWorld War II profoundly affected the American business landscape, and our work shifted to issues of national import as we helped several major companies convert their production facilities to support US troops.

As our client base continued to grow we established new offices in Chicago, Los Angeles, and San Francisco. As we grew, so too did our commitment to our "one firm" concept. We believed then (and now) that only by remaining a single organization rather than a loose confederation of offices could we simultaneously deliver the best possible client service and treat our own people with utmost fairness and integrity.

It's our belief in "one firm" that allows us to view our consultants as a global talent pool—one we can draw on as needed to provide the best service to our clients, regardless of location.