Blacksmith
Blacksmith

General Application

TLDR

Build CI infrastructure that orchestrates Firecracker VMs, schedules 100k+ vCPUs, and runs agent sandboxes at scale.

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 week, running CI for 7,000+ companies and tens of millions in ARR. We’ve grown 10x so far in 2026.

  • We operate thousands of bare-metal machines across multiple regions, regularly schedule 100k+ vCPUs concurrently, and run a petabyte-scale Ceph cluster that we manage ourselves.

  • We’ve raised $58.5M from Seed to Series B, led by Google Ventures (GV) & Peak XV Partners, 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.

Compensation and benefits

  • Medical, Vision, and Dental insurance.

  • Competitive base + equity.

  • 401K match.

  • Unlimited PTO.

  • Annual offsite.

  • Early-exercise stock options

  • 12 weeks fully paid parental leave (US)

Benefits

Equity Compensation

equity

Health Insurance

Medical, Vision, and Dental insurance.

Paid Parental Leave

12 weeks fully paid parental leave (US)

Paid Time Off

Annual offsite.

Stock Options

Early-exercise stock options

Blacksmith builds CI infrastructure that accelerates GitHub Actions by leveraging a global fleet of bare-metal machines. Our technology orchestrates millions of Firecracker VMs for thousands of companies, providing a faster and more cost-effective solution for running CI workloads.

Founded
Founded 2024
Employees
11-50 employees
Industry
computer software
Funding stage
Series B
Total raised
$120M raised
Last funding
Raised August 2026
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