⚙️
AI Infrastructure
$334B+ in 2025 → $900B+ by 2029
Chips, networking, storage, cooling, data centers. The physical backbone. Spending is now structural, not cyclical. Fastest sub-segments: AI networking (InfiniBand), NVMe storage, liquid cooling (all 30%+ CAGR).
Key cos: NVIDIA, AMD, Broadcom, CoreWeave, Equinix
🧠
Foundation Models
OpenAI $852B val · Anthropic $380B
Frontier model labs form the gravitational center. Natural oligopoly—single training run costs $100M–$1B+. Revenues growing 4–5× YoY. OpenAI and Anthropic together exceed 90% of category valuation.
Key cos: OpenAI, Anthropic, Google DeepMind, xAI, Meta AI
🔧
Developer Tools & Coding AI
Fastest-growing SW category ever
Two sub-layers: IDE assistants (pair programming) and fully autonomous coding agents (write → test → deploy). Cursor hit $9.9B valuation in under 2 years. Claude Code and OpenAI Codex serve millions weekly.
Key cos: Anysphere/Cursor, GitHub Copilot, Windsurf, Cognition/Devin
🏢
Enterprise Horizontal AI
$29.3B platform market in 2026
AI embedded in existing enterprise software (ERP, CRM, productivity). Orchestration layer (agents, RAG, MCP) now the critical integration point. Hyperscalers leading in enterprise adoption.
Key cos: Microsoft, Salesforce, ServiceNow, SAP, Glean, Palantir
🏥
Vertical AI (Domain-Specific)
35% CAGR · Fastest by deal count
Industry-specific models trained on proprietary domain data—HIPAA-compliant clinical AI, legal research engines, financial compliance monitors. Winning formula: narrow workflow focus + regulatory expertise + proprietary data.
Key cos: Harvey, Abridge, Tempus, EvenUp, Hebbia, Legora
🤖
AI Agents
$25B+ raised by top 25 cos in 2026
Fastest-growing segment. Shift from "answering questions" to taking autonomous actions across workflows. Multi-agent systems (MAS) enable complex, distributed enterprise tasks. Outcomes-based pricing (pay per result) gaining traction.
Key cos: Sierra, 11x, Cognition, Adept, Hippocratic AI, Clay