AI infrastructure funding hits $12.5B in 12 months, but concentrated: top 10 deals = 82.7% of capital

New Market Pitch analysis of AI infrastructure funding from July 2025 through June 2026 reveals 27 disclosed deals totaling $12.53 billion across 24 unique companies. However, capital concentration is extreme: the largest single deal represents 16% of total capital; the top 3 deals account for 38.9%; top 5 reach 56.5%; and the top 10 deals capture 82.7% of all capital. This mirrors how the semiconductor market is consolidating: only Baseten ($1.5B Series F), Groq ($650M), and a handful of other late-stage inference and compute players are raising at scale.

Deal flow is thin relative to capital size. The 27 deals were split across 24 companies, meaning the market is active but narrowly concentrated. Late-stage rounds (Series C+) and growth equity financings account for 82.5% of disclosed capital. Average capital per month reached $1.04 billion, but the median month was only $475 million—indicating a few mega-rounds (Baseten, perhaps Mirendil, OpenAI secondary sales) skewed the average upward. August 2025, December 2025, and early June 2026 saw zero qualifying AI infrastructure deals.

For venture builders evaluating the market, this signals several trends: (1) venture capital is flowing primarily to companies with existing revenue or large customer commitments (hyperscaler partnerships); (2) seed and Series A startups in AI infrastructure face headwinds; (3) the market is bifurcating between tier-1 infrastructure plays (Baseten, Groq, CoreWeave) that attract mega-rounds and lower-tier players that struggle for capital. The data center and power infrastructure M&A markets ($61B in 2025 alone) suggest the real value is consolidating among operators, not software vendors.