Namespace raises $42M Series B to build the compute layer for AI coding agents
The Zurich developer-infrastructure startup has raised $42 million led by Scale Venture Partners, seven months after its Series A, betting that agent-written code will strain build and test pipelines.
Namespace, the Zurich startup selling fast coding, build, and test environments, has raised $42 million in Series B funding led by Scale Venture Partners. The round, announced Monday, comes about seven months after the company disclosed a combined $23 million in seed and Series A financing, bringing its total raised to $65 million.
The thesis is simple and well timed. AI coding agents can now generate a dozen pull requests in minutes, but every one of those still has to be built, tested, and validated before it ships. Namespace is betting that as agents write more code, the bottleneck in software delivery shifts from writing to verifying, and that teams will pay for infrastructure purpose-built for that workload. Founder and CEO Hugo Santos, a former Google principal engineer, frames the ambition plainly: the company wants to be the infrastructure layer for AI coding agents, serving developers and agents from the same build-test-run backend.
The numbers behind it
The numbers behind the raise are strong, at least as the company reports them. Namespace says revenue grew 8x over the past 12 months and that it now serves more than 1,000 customers, a figure reported by Axios. Named customers include SpaceXAI, Ramp, Framer, ElevenLabs, and Vanta. Santos told Tech.eu the round will fund faster product development and an expansion of the company's own compute and server operations, including large Apple Silicon hardware fleets for high-performance iOS and macOS build environments.
The product itself is deliberately unglamorous. Namespace runs a vertically integrated stack: its own custom server racks, a proprietary bare-metal virtualization engine, a workload scheduler, and secure multi-tenant networking across Linux, Windows, and macOS. Two modules do most of the selling. Devboxes are instantly provisioned cloud development sandboxes tuned for multi-file AI coding agents. Namespace CI is a drop-in replacement for GitHub Actions runners that the company says executes build configurations up to 10x faster, with the observability and security controls enterprises expect from CI.
The investor list reads like a bet on European infrastructure. Alongside lead investor Scale Venture Partners, the round includes 20VC, NEA, Essence, Burst Capital, Susa Ventures, and Datadog CEO Olivier Pomel as an angel investor. The raise closed only seven months after the Series A, a pace that usually signals investors wanted in before the numbers moved further.
There is a real question under the momentum. Namespace's bet depends on agent-generated code translating into sustained, paid demand for faster build infrastructure rather than just more minutes on existing CI. The company is arguing that CI shifts from pipeline to bottleneck when machines, not humans, are the primary authors of code. If that holds, owning the metal underneath the build farm is a good place to be. The $42 million says Scale and company think it holds. Namespace's homepage now carries an announcement of the round at the top of the page.
