Build, test, ship without the wait

High-performance developer infrastructure that accelerates your team at a fraction of the cost.

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Works with GitHub Actions, Docker builds, Bazel, Turbo, Nix, iOS Testing, and more.

Application observability platform

Series D

Design and prototyping tool

Series C

Security / Compliance

Series D

Physical security platform

Series E

AI inference platform

Series CTestimonial

Agentic development

Series BTestimonial

How it works

Drop-in acceleration for GitHub Actions

Namespace works with your existing workflows, running them significantly faster, and adding a full fledged suite of tools to help you.

Connect with GitHub.

Change your runs-on.

Your jobs are accelerated.

Don't use GitHub Actions? Namespace supports many other CI and toolchains. Read more.

Benefits

Powerful built‑ins. No setup.

Multiple products you need to tune performance, efficiency and spend, all included.

Built-in observability

Built-in metrics, logs and OOM detection. Within jobs, and across jobs.

Turbo Docker Builds

Transparent high-performance container builds that scale-out.

Workflow Analytics

Understand performance over time, spot flakes, optimize the critical path, and more.

Performance insights

Drill down on performance and resource usage over many dimensions.

Incremental runs

Cache volumes enable seamless incremental builds and tests; just like in your workstation.

Container Registry

Integrated high-performance private container registry, for ephemeral runs, tests and production.

Remote caching

Built-in high-performance caching for the most popular toolchains: Bazel, Nix, Turbo, etc.

Remote access

Debugging at your fingertips with remote SSH and VNC access.

And much more: Artifacts, Custom Base Images, Branch protection, Runner configurations, AWS Federation, Previews, Ephemeral environments, Kubernetes clusters, etc.

What sets us apart

Why choose Namespace?

Unlike hyperscalers who optimize for production workloads, we’ve built services and infrastructure purpose-built for build and test. This specialization delivers measurably higher performance and greater efficiency—savings we pass directly to our customers through cost optimizations.

Best performance available

At Namespace we obsess about build and test performance. Best performance per core, lowest latency, high throughput.

Purpose-built platform

We design and deploy our own server racks across multiple data centers. We build full-stack: compute, network, storage drives the software design, and vice-versa.

Covers all of your multi-platform needs

Supporting a broad set of use-cases; including nested virtualization, supporting your Android emulation needs.

Apple Silicon

M4 Pro, at scale. Native MacOS available for your CI jobs, for previews, and programmatically. And also powers the fastest linux/arm64 available for CI.

Built for Enterprise

Built with security and robust-first principles, Namespace supports large, fast-paced organizations, with unique requirements.

✓SOC 2 Type 2 Attested

✓SAML SSO

✓Private endpoints

✓Usage analytics

✓Emergency support

✓Uptime SLA

Usage and access controls

Flexible billing and enterprise-grade fine grained access controls.

Audit logs

Transactional audit logging, with SIEM integration.

Network controls

Network observability & enforcement: performance and security insights, job-wide network policies to constrain egress.

Testimonials

What our customers are saying

Super reliable, I don't recall us ever having an issue that impacted us.

— Karl Lyons, Site Reliability Engineer

7.2x faster builds,

from 11m 38s to 1m 36s.

I did a demo for our full engineering team yesterday, and jaws were on the floor.

— Zack Stayman, Lead Platform Engineer

70% lower cost

and shorter end-to-end times.

Namespace is an impressive team offering a great product.

— Nicolas Mattia, Staff Software Engineer

zero maintenance

and 90% faster builds.

Mitchell Hashimoto

Been using Namespace for the past year or two, they’ve been absolutely awesome. The service is great, support is great. Just overall great job.

Gajus Kuizinas

In five years of optimizing our CI/CD, switching to namespace was the single most impactful change for speed and stability — perhaps the lowest-effort, highest-leverage decision I’ve made as a CTO.

Aloke Desai

Namespace is the best dev infrastructure tool I’ve used in years. The product works flawlessly, it’s cheaper and faster than GitHub runners with much better observability, and most importantly the support is incredible. Could not recommend Namespace enough.

Sam Currie

We switched to Namespace in 2024 due to a confluence of problems with GitHub: our costs were skyrocketing, CI tests were flaky due to resource constraints on large suites, and builds were taking forever. When we switched, overnight we saved thousands per month and were able to give our pipelines an appropriate amount of resources to ensure reliability and speed. The deeper observability and personal support are a great bonus!

Christian Mladenov

Namespace has been rock-solid for us, the caching feature delivers speeds unmatched by default runners, and the ability to interactively debug runs is a killer. Team is also super responsive, even gave us some tips on how to improve internal infra. Overall very happy!

Marvin Huetter

Switching our CICD runners to namespace.so improved our pipeline execution time by 3x while being more cost efficient. The faster feedback loop was well received by the whole engineering team.

Accelerate your developer team

Join hundreds of teams using Namespace to build faster, test more efficiently, and ship with confidence.

Get started Book a demo