Blacksmith

Blacksmith is the fastest way to run your GitHub Action workflows. We orchestrate your workflows over our fleet of bare-metal gaming CPUs with your build caches co-located right next to your CI jobs. All it takes is a one-line code change. Get started with Blacksmith https://docs.blacksmith.sh/introduction/quickstart

About Blacksmith

• We started by building infrastructure to run CI workloads really fast. Our first product helps companies run GitHub Actions substantially faster and cheaper by owning and operating our own global fleet of bare-metal machines rather than renting generic cloud VMs.
• Today, we orchestrate tens of millions of Firecracker VMs each month, running CI for 2,000+ companies and hit ~$10M in ARR in less than 2 years.
• We operate thousands of bare-metal machines across multiple regions, regularly schedule 50k+ vCPUs concurrently, and run a petabyte-scale Ceph cluster that we manage ourselves.
• We’ve raised $13.5M across Seed and Series A, led by Google Ventures (GV), and we’re intentionally building a small, but exceptional team.
• Blacksmith was founded by a team with deep systems and scaling experience, including building search/ads infrastructure at Faire, and operating large distributed systems at Cockroach Labs. Our GTM is led by Jon Boyer, formerly Head of Sales at Zapier.
• We’re now extending the same CI infrastructure into a broader platform: running agent sandboxes at scale and building our own background coding agent on top of it.