Reconciling Enterprise AI Revenue

× Companion to the full research report, Reconciling Enterprise AI Revenue: A Methodological Crosswalk and Vendor-Level Census, 2025. The PDF carries the 68-vendor primary-source census, the six-tier disclosure framework, the per-step sourced deductions, and the netting of structural double-counts. Three of the most widely cited enterprise AI revenue figures published in 2025 differ by 40x. A fourth, the vendor run-rate sum, sits between them. None is wrong. The defensible floor that underwrites $690B of hyperscaler capex sits at $63.2-72.5B. Menlo Ventures put US enterprise generative AI spending at $37B for 2025 in its December 2025 report. The bottom-up sum of disclosed vendor run-rates lands at $100-135B worldwide. IDC sizes the 2025 AI Solutions market at $307B. Gartner forecasts $1.478T for total worldwide AI spending in 2025. The trade press cites all four as “the AI market.” Menlo is not the cautious one and Gartner is not the aggressive one. Each figure is methodologically…