San Francisco-based Convex has raised $57 million in a Series B funding round led by Insight Partners, with participation from Etna Labs and existing investors including a16z and Spark Capital. The round brings Convex’s total funding to $110.5 million. The company said the capital will support product development, hiring, and new tools for developers using AI-assisted software engineering.
Founded in 2021 by former Dropbox infrastructure engineers Jamie Tuner and James Cowling, Convex is an open-source reactive database for web app developers. It combines a database, server-side functions, real-time synchronization, search capabilities, and file storage into a single TypeScript-based development environment. The platform packages those components together with its built-in transactional guarantees and automatic synchronization across clients.
“Agents reach for the first thing that works, and on most backends the first thing that works is subtly, silently wrong. You’ll find out weeks later, in production,” said Jamie Turner, co-founder and CEO of Convex.
Before launching Convex, Turner spent more than a decade building large-scale software infrastructure. At Dropbox, he rose to senior engineering director, overseeing the company’s business platform, as well as its storage and database engineering groups. He helped scale systems supporting hundreds of millions of users.
Earlier, Turner served as head of engineering at Bump, the mobile file-sharing application acquired by Google in 2013. In addition to his operating career, he has invested in early-stage technology companies as an angel investor and scout for Andreessen Horowitz (a16z), focusing on startups developing web infrastructure and artificial intelligence technologies.
“We spent our careers at Dropbox learning what it takes to make a promise to hundreds of millions of users and keep it, every time. Convex is that discipline packaged as a product: the correct thing and the easy thing are the same thing,” Turner said. “This round is about keeping that promise as our customers grow. The mission from here is simple: make excellent architecture inevitable.”
The company says its software is used by organizations including OpenAI, Tripadvisor, Solana, Zapier and Reducto. According to Convex, developers have built nearly two million applications on the platform, supported by roughly 500,000 developers and more than 1.2 million weekly downloads of its software package.
Insight Partners is a New York-based growth equity firm focused on software, internet and technology companies across venture and scale-up stages. As of December 2025, the firm managed more than $90 billion in regulatory assets under management and has invested in more than 900 companies globally.
Its portfolio has produced more than 55 initial public offerings. In addition to its New York headquarters, Insight Partners maintains teams in London, Tel Aviv and the San Francisco Bay Area.
“AI coding agents are changing how software gets built, but they can expose the weaknesses of traditional backends,” said Teddie Wardi, managing director at Insight Partners.
In recent investments, the firm led DataBahn’s $40 million Series B financing to support its agentic data control platform, participated alongside Meritech and Dawn Capital in Inforcer’s Series C round for Microsoft 365 security automation, and anchored a new funding round for AI coding assistant Tabnine. Insight also led GovWell’s $25 million Series A to expand software for local government operations and co-invested with Soma Capital in the seed financing of Modus.
