a16z Growth just raised an additional $5.5B for its fifth fund, bringing the total to $8.5B. The firm's betting on six major tech waves happening simultaneously: enterprise AI adoption, consumer AI (still mostly untapped), American Dynamism (defense and industrial policy driving physical infrastructure), robotics and autonomy, healthcare transformation through programmable biology, and a rebuilt compute stack. The core thesis is straightforward—founders who understand these powerful technologies will attract capital, and a16z's job is identifying them and removing obstacles. The fund focuses on helping companies navigate what a16z calls "inflection points," those moments when early instincts stop working and companies must expand into multiple products, channels, and geographies at once. They reference Databricks evolving into a platform and SpaceX becoming a communications and AI infrastructure company as examples of founders executing through these transitions. Over seven years, the Growth team has worked with over 100 companies through these scaling challenges. To support this, a16z is expanding its Growth Platform with new expertise in sales, marketing, and pricing. The additions include defining leadership structures for the next growth phase, building AI-native go-to-market playbooks, refining customer positioning, transitioning from founder-led sales to revenue engines, navigating pricing model changes (especially for AI margin management), and designing revenue operations. The team advising on these areas worked in-house or closely with companies like Atlassian, Samsara, 1Password, and Workday during their hypergrowth phases—actual operating experience rather than theory.