Composed Ventures

Investing in early-stage data infrastructure, AI, and ML companies.

Accelerating the growth of the Composable Data Stack

AI

Analytics

Data

Portfolio

Workspace to Plan, Review, and Manage Coding Agents

Incremental Data Processing Framework for AI Agents

Semantic Modeling Platform powered by Malloy

Advanced and affordable ERP/MRP for small and mid-sized factories

AI Research Agent for Experiment Automation in Jupyter

Structured Memory Infrastructure for AI Agents

Hyper-efficient Data Streaming for the Real-time and AI Era, powered by Rust and Apache Iggy

End-to-end Data Platform with SQL/Python Transformation and AI Analyst

Platform for AI System Fine-tuning, Evaluation, and Optimization

Apache Arrow-accelerated Data Connectivity

High Performance Rust- and Apache Arrow-Powered Spreadsheet

Drop-in Query Engine for Snowflake

PostgreSQL-compatible HTAP Database with Automatic Code Generation

AI-powered Automation Platform for SaaS Workflows

Real-time ETL with Declarative Pub/Sub for Tables

Open Source Supply Chain Security

Real-time data integration powered by Rust and Apache Arrow.

Next-Generation Data Processing Platform (Stealth)

Expression-based Context Engine with Git-native Versioning

Next-generation Python tooling (Ruff, uv, and more) Acquired by OpenAI

Reactive, Git-friendly Python Notebook Acquired by CoreWeave

Serverless PostgreSQL Acquired by Databricks

Cloud Storage Platform powered by Apache Iceberg Acquired by Databricks

Open Source Vector Database for Multi-model AI

Serverless Lakehouse Platform

Next-Generation Data Frames implemented in Rust

AI / ML Infrastructure powered by the Ray project

Apache Arrow-powered Lakehouse Platform

Next-generation Containerized CI/CD

Collaborative Data Science and Analytics Platform with Activation Fund

DuckDB-powered Serverless Data Warehouse with Zero Prime Ventures

LLM-powered Data Analysis Copilot

Automated Kubernetes Optimization and Management Platform Acquired by DoIT

Lightning-fast Operational Dashboards with Instant UX

Next-generation Spreadsheet with Python, SQL, and AI

Query Engineering Platform for Data Warehouses. Co-creator of Substrait.

Multi-cloud MLOps Platform powered by Flyte and Kubernetes

Founder

Founder Image

General Partner Wes McKinney is an entrepreneur and open source software developer. He co-founded Voltron Data, Ursa Labs, and DataPad, and made over 20 private investments prior to creating Composed Ventures. He created the Python pandas and Ibis projects and wrote the popular reference book Python for Data Analysis.

Contact at [email protected]