OpenAI — Enterprise Market Share: 27%

Note: While the source is from the Menlo Ventures December 2025 report titled 'The State of Generative AI in the Enterprise' (matching the cited source), the provided excerpt does not include the market share data mentioned in the claim. The excerpt discusses overall enterprise AI spending ($37B in 2025), application vs. infrastructure spending, and build vs. buy decisions, but does not provide the specific market share percentages (OpenAI 27%, Anthropic 40%, Google 21%) that are claimed. The market share data may exist elsewhere in the full report, but it is not present in the provided text excerpt.