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Cartesian Trees

AI solution partner building LLM, agentic and RAG systems for companies that need them in production

Paris, FranceFounded 2023cartesiantrees.comWebsite technologies

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Highlights

  • Young companyFounded 2023
  • New on EvolcAdded 2026-11-02

About Cartesian Trees

Cartesian Trees designs, builds and deploys AI-powered systems, including LLM applications, agentic systems, RAG pipelines and Bayesian inference engines. Its engineering work also covers Python and Django backends, React and Next.js frontends, Metabase business intelligence, server-side tracking and data extraction pipelines.

Customers are companies that want AI features or systems shipped into production, and the team works embedded with their engineers. Work is sold as fixed-price engagements: a Sprint at €8,000, a Build at €24,000 and a Partner engagement from €48,000, with longer projects billed at a daily rate of €1,000 and optional monthly retainers.

The company was founded in 2023 and is based in Paris, France. It holds Jeune Entreprise Innovante (JEI) status from the French government and maintains the open-source postgres-bayes project, which runs Bayesian inference inside PostgreSQL. Its founder is Ayush Tiwari.

Product: AI and LLM solution engineering, agentic systems, RAG pipelines, Bayesian inference in PostgreSQL, plus backend, frontend and data engineering services.

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