Boston Consulting Group (BCG) is a global management consulting firm founded in 1963 by Bruce Henderson and headquartered in Boston, Massachusetts. One of the 'Big Three' (MBB) strategy consultancies alongside McKinsey and Bain, BCG advises businesses, governments and institutions on strategy, operations, technology, digital transformation and organization. It operates more than 100 offices across 50+ countries, employs around 33,000 people and reported revenue of about $13.5 billion in 2024.