McKinsey and Company 

The firm calls itself a global management consultancy and a trusted advisor to leading businesses, governments and institutions. It works across private, public and social sectors. Scale, scope and knowledge are used, it says, to take on problems others cannot, with deep functional and industry skill plus wide geographic reach. Consultants say they work with clients as with colleagues, building capability and leadership so teams can face real issues and reach practical recommendations, then lead the follow-on work. Type on the page is Partnership.