Skillsync is a Y Combinator W26 startup building 'GitHub for agent sessions.' It captures the work of AI coding agents like Claude Code, Codex and Cursor, stores every session in one searchable place, and turns the best sessions into reusable skills any agent on a team can load. Founded by ex-Juspay Rust engineers Narayana Aaditya Ganeshkumar and Nishant Joshi, the company started as a tool for finding elite engineers by their GitHub code and evolved into infrastructure for sharing agent knowledge across teams.
Sol Browser is a San Francisco startup (Y Combinator Fall 2025) building a browser designed to work as a developer's IDE. It lets engineers run multiple AI coding agents - Claude Code, Codex, Cursor - in parallel from browser tabs, alongside terminals, diff viewers, running apps, docs and pull requests. The company began as Inspector, an AI IDE that connected the browser to the codebase so agents could see the same visuals, elements and logs a developer sees, then expanded that idea into a full browser workspace. Founded by Quentin Romero Lauro and Michael Klikushin, it operates as Sandbox Technologies, Inc.
Resourcely was a San Francisco cybersecurity startup that made cloud infrastructure secure and compliant by design. Its platform paired Blueprints - self-service templates that generate golden-path Terraform and OpenTofu - with Guardrails, a policy engine written in a human-friendly language called Really that catches misconfigurations before deployment. Founded in 2022 by Travis McPeak and Aladdin Almubayed and backed by $8M in seed funding, Resourcely was acquired by Anysphere (maker of the AI code editor Cursor) in July 2025, with McPeak joining to lead Cursor's security efforts.
TestSprite is a Seattle-based startup building an autonomous AI testing agent that validates AI-generated code. Its agent plugs into AI IDEs like Cursor, Claude Code, and VS Code via an MCP server, then autonomously writes test plans, generates and executes tests in the cloud, diagnoses failures, and feeds fixes back to the coding agent. Founded in 2023, TestSprite has raised $8.2M total, including a $6.7M seed led by Trilogy Equity Partners in October 2025, and serves 35,000+ users. It positions itself as the 'testing backbone' of the AI-native development era.
Corridor is a San Francisco security company building an AI-native platform that embeds protection directly into AI coding workflows. Its Agentic Coding Security Management (ACSM) platform reviews every file edit and pull request in real time, catching vulnerabilities as code is generated by tools like Cursor and Claude Code rather than after it ships. Founded in 2025 by former CISA staffers Jack Cable and Ashwin Ramaswami with security veteran Alex Stamos, Corridor has raised $30.4M, including a $25M Series A at a $200M valuation in March 2026.
David Bild is a technical co-founder and engineering leader at Resourcely, the cloud-security startup acquired by Anysphere (maker of Cursor) in July 2025. A Ph.D. computer engineer who once designed censorship-resistant networks, he has spent his career turning gnarly security problems into guardrails developers actually want to use - from overlay networking for IoT at Xaptum to secure-by-design Terraform blueprints at Resourcely. Post-acquisition he works on Fraim, an open-source, genAI-based application- and cloud-security tool. He builds from a cabin-adjacent base in Southwest Harbor, Maine, on the doorstep of Acadia.
Michael Truell is the 25-year-old co-founder and CEO of Anysphere, the company behind Cursor — the AI-native code editor that reached $2 billion ARR faster than any SaaS company in history. A former Google intern and MIT dropout who won the ACM/CSTA Cutler-Bell Prize and IOI medals in high school, Truell co-founded Cursor in 2022 with three MIT classmates, launching it publicly in March 2023. By November 2025, Cursor had raised $2.3 billion at a $29.3 billion valuation — and in April 2026, SpaceX secured an option to acquire the company for $60 billion. Truell's north star: replace coding itself with something better.
Rajko Radovanović is an investing partner on the AI and infrastructure team at Andreessen Horowitz (a16z), where he backs the builders reshaping how software is made. He has led or co-led investments in Cursor, Mistral AI, Udio, Luma AI, Black Forest Labs, World Labs, and Braintrust, and runs a16z's Open Source AI Grant Program. Before a16z, he was a venture investor at New Enterprise Associates (NEA), where his portfolio included Perplexity AI, Sentry, and Weaviate. He studied economics and computer science at Harvard, did language studies in Beijing, and attended the United Nations International School — a biography that reads like someone engineered to operate at every intersection of tech, capital, and global culture.
Sarah Wang is a General Partner at Andreessen Horowitz (a16z), where she leads growth-stage investments across AI, enterprise applications, and infrastructure. A Harvard and Stanford GSB alumna with rare dual-mode investor instincts - equally comfortable asking 'Is it working?' and 'What if it works?' - she has backed defining companies of the AI era including Cursor, Wiz, Character.ai, Gamma, Decagon, and Thinking Machines Lab, while working closely with a16z's positions in OpenAI, Databricks, SpaceX, SSI, and Figma.
Sualeh Asif is the 26-year-old co-founder and Chief Product Officer of Anysphere, the company behind Cursor - the AI-powered code editor that reached $2 billion in annual recurring revenue faster than any B2B company in history. Born in Karachi, Pakistan, he represented his country at the International Mathematical Olympiad three times before studying at MIT, where he and three classmates built the product that is now rewriting how software gets made. Valued at $1.3 billion on Forbes' 2026 Billionaires List, Asif went from teaching math to Karachi students to co-architecting the tool powering 50,000+ enterprises including Nvidia, Adobe, and Uber.

Lee Robinson is a developer educator and engineering leader who spent five years at Vercel scaling Next.js to over a million monthly active developers, rising from individual contributor to VP of Developer Experience. He now serves as Head of AI Education at Cursor, teaching developers how to build software with AI-powered tools. Known for creating free courses like Mastering Next.js and React 2025, his newsletter 'Optimism (for the web)' and 234K+ Twitter following reflect his belief that great technology should be easy to understand and interesting to learn.