Composio is an integration platform that lets AI agents take direct, meaningful actions across hundreds of business applications including Gmail, Slack, GitHub, Salesforce, and Notion. Instead of forcing developers to build and maintain authentication and API plumbing for every tool, Composio provides pre-built, managed integrations and handles auth, so agents can read, write, and act reliably across a user's software stack. Founded by Soham Ganatra (CEO) and Karan Vaidya, the company operates from San Francisco and Bengaluru and reports more than 100,000 developers on the platform, 200+ paying customers, and over $1M in annualized recurring revenue. Composio raised a $25M Series A led by Lightspeed Venture Partners in July 2025, with participation from Elevation Capital, Together Fund, and angels including Dharmesh Shah and Gokul Rajaram — establishing it as a key tool layer for the emerging agentic AI ecosystem.