Konstantin Vinogradov — VC Investor in Open Source, AI and Infrastructure Software

# Konstantin Vinogradov > VC investor specializing in open source, AI, and infrastructure software. Previously General Partner at Runa Capital ($600M+ AUM). Based in London, often in the SF Bay Area. Notes on venture capital, tech startups, open source, and philanthropy. ## About - [Konstantin Vinogradov](https://kvinogradov.com/): Personal page with background, investments, philanthropy, and writings on venture capital, open source software, and technology startups. - [Writing](https://kvinogradov.com/writing/): A collection of articles exploring open source growth, investment theses, OSS funding, and developer ecosystem analysis. ## Venture Capital and Investments - [Investment in open source AI agent framework Mastra](https://kvinogradov.com/mastra/): Investment thesis on Mastra, the leading open source TypeScript AI agent framework. Discusses the agentic AI market, the distinction between "AI People" (Python) and "Software People" (TypeScript), and why TypeScript-native AI tooling matters. Mastra raised a $13M seed round. - [Investment in open source CRM Twenty](https://kvinogradov.com/twenty/): Investment thesis on Twenty, the leading open source CRM. Covers the history of open source business infrastructure, Salesforce's dominance, and how Twenty is building a modern, data-centric, AI-native CRM platform. Runa led the $5M seed round. - [Investment in open source AIOps platform Keep](https://kvinogradov.com/keep/): Investment thesis on Keep, an open source AIOps and alert management platform. Discusses enterprise alert fatigue, observability stack fragmentation, and how open source can outperform closed-source incumbents in adapting to diverse enterprise environments. Runa led the pre-seed round. Keep was later acquired by Elastic. - Other select investments include [Entire](https://entire.io/) (next-gen developer platform for humans and AI agents), [Dosu](https://dosu.dev/) (AI teammate for engineering teams), [White Circle](https://whitecircle.ai/) (AI gu