What AI companies are built with
Each company page combines two sources: a BuiltWith scan of their public domain (JavaScript, hosting, analytics, and related groups) and a table of vendors from sub-processor lists and trust centers.
For technologies used by open source projects we track, use the open source stack index.
OpenAI
ChatGPT, API, and enterprise AI products
OpenAI publishes a sub-processor list for customer data under its Data Processing Agreement. Enterprise, API, and business ChatGPT tiers rely on multiple cloud and CDN vendors, not a single region or provider.
Anthropic
Claude models, API, and Claude consumer apps
Anthropic maintains trust and legal documentation for Claude. Sub-processors cover inference hosting, auth, payments, and product-specific integrations. Always use the live trust center for procurement reviews.
Mistral AI
Le Chat, La Plateforme, and Vibe products
Mistral publishes subprocessors in its trust center, including EU-first compute alongside US cloud regions for specific API endpoints.
Perplexity
AI search and answer engine
Perplexity lists subprocessors in its trust center, including model providers, cloud hosts, analytics, and payment vendors used to run the product.
Google (Gemini)
Gemini apps and Vertex AI
Google documents subprocessors and cloud dependencies through Google Cloud compliance and product-specific privacy documentation. Gemini consumer and workspace features inherit Google Cloud's vendor ecosystem.
Cohere
Enterprise LLM API and Command models
Cohere provides enterprise AI with documented security and privacy materials. Review Cohere's trust resources for the current sub-processor schedule before vendor assessments.
We link to primary disclosures on each company page. Confirm the live list before audits; vendors change when products add regions or features.