Y combinator maintains lead in startup investments as Nvidia surpasses previous dealmaking records

In August 2026, Y Combinator remained the most active U.S. startup investor by deal count, with at least 18 investments, according to Crunchbase data. Nvidia, meanwhile, significantly increased its dealmaking pace, participating in nine rounds of $5 million or more, marking its busiest month since early 2025. The chip giant led or co-led financings totaling $1.3 billion, with seven investments focused on AI startups. Global venture funding reached $42 billion in August, a 122% increase year-over-year, with seven companies securing billion-dollar rounds. General Catalyst led the most active lead investors in $5 million+ rounds, with five deals including a $1.1 billion Series A for River AI. Andreessen Horowitz and Sequoia Capital tied for second, each leading four deals. Nvidia’s surge in investments highlights its growing role in the AI ecosystem, with 59 known deals in 2026, surpassing its 2025 total. Coatue topped the spending rankings with a $5 billion deal for Databricks, while JPMorganChase and Valor Equity Partners followed with $2.37 billion in combined investments. Seed-stage investments saw Y Combinator lead again, backing 12 U.S.-based startups. The report underscores the dominance of major venture firms in deal counts, while megadeals shape spending rankings. Nvidia’s rise reflects the increasing influence of corporate investors in the AI sector.