https://en.m.wikipedia.org/wiki/McKinsey_%26_Company
https://www.gq.com/story/buttigieg-mckinsey-clients-list/amp
https://www.clintonfoundation.org/clinton-global-initiative/commitments/rebuilding-new-haiti-supporting-ihrc
McKinsey's fingerprints can be found at the scene of some of the most spectacular corporate and financial debacles of recent decades.
— Ben Chu, The Independent (2014)[92]
Defenders of McKinsey claim that the firm merely advises, and is not a decision-maker.[93]
Nevertheless, since the end of the 20th century, McKinsey has been either directly involved in, or closely associated with, a number of notable scandals.[92] Reuters describes these incidents as indicating "not bad apples, [but] a culture of corruption".[94]
Role in corporate accounting scandals
Enron
Main article: Enron scandal
Enron was the creation of Jeff Skilling, a McKinsey consultant of 21 years, who was jailed after Enron collapsed. McKinsey reportedly "fully endorsed the dubious accounting methods that caused the company to implode in 2001."[92] Enron reportedly used McKinsey on 20 different projects,[95] and McKinsey consultants had "used Enron as their sandbox."[95]
McKinsey denied giving Enron advice on financing issues or having suspicions that Enron was using improper accounting methods.[95]