The Fortune Future 120 recognizes companies from around the world which are best positioned to drive sustained, long-term growth. Since 2017, Boston Consulting Group (BCG) and Fortune have teamed up to identify the world’s biggest companies for their innate fitness to grow—a measurable, manageable trait we call “corporate vitality.” We will evaluate and rank publicly traded and privately-owned companies across three strategic dimensions — Growth Ambition, Growth Team Density and Growth Culture — using the proprietary vitality score comprising 15 forward-looking factors, selected for their ability to predict long-term sales growth.