McKinsey & Company

Founded by James O. McKinsey in Chicago in 1926, McKinsey developed from a small consulting firm into a global partnership. It operates as one integrated firm rather than a loose network of independent offices.

McKinsey advises companies, governments, and institutions across strategy, corporate finance, operations, organization, technology, sustainability, and transformation. Its work increasingly spans the full path from diagnosis and strategic design through implementation and capability building.

The firm is especially strong in board- and C-suite-level problem solving, operations improvement, organizational change, and technology and AI transformation. It also maintains a substantial research and knowledge platform, including QuantumBlack, AI by McKinsey, and proprietary digital tools.