# Blacksmith

> Blacksmith is a San Francisco-based developer-tools startup building a high-performance CI cloud. Its drop-in replacement for GitHub Actions runners boots each job into a Firecracker microVM on bare-metal gaming CPUs, letting engineering teams run their pipelines up to 2x faster at roughly half the cost. Backed by Y Combinator and Google Ventures, Blacksmith serves thousands of engineering teams - including Vercel, Supabase, Mercury, Clerk and Ashby - and pairs raw compute with observability and security tooling built specifically for CI workloads.

- **Founded:** 2024
- **Headquarters:** San Francisco, United States
- **Founders:** Aditya Jayaprakash (Co-founder & CEO), Aayush Shah (Co-founder), Aditya Maru (Co-founder)
- **Team size:** ~11-51 employees
- **Products:** Blacksmith Runners, Blacksmith Console, Blacksmith Sandboxes
- **Notable:** Backed twice by Google Ventures within four months - seed then Series A., Closed a $10M Series A in just 14 days., Grew to 3,000+ organizations and 50M+ monthly CI jobs.

## Products & services

- **Blacksmith Runners** — A drop-in replacement for GitHub Actions runners. Jobs boot into isolated Firecracker microVMs on bare-metal gaming CPUs, running up to 2x faster at roughly half the cost, with co-located cache and persistent Docker layers on NVMe.
- **Blacksmith Console** — Observability for CI pipelines - global log search, pipeline debugging, performance metrics over time and inline failed-test reporting directly on pull requests.
- **Blacksmith Sandboxes** — An upcoming product for on-demand isolated compute environments (announced as coming soon).

## Achievements

- Backed twice by Google Ventures within four months - seed then Series A.
- Closed a $10M Series A in just 14 days.
- Grew to 3,000+ organizations and 50M+ monthly CI jobs.
- Scaled ARR from roughly $1M to $3.5M while staying a small team.
- SOC 2 compliant with Firecracker microVM isolation for secure CI.

## Latest updates

- **2025-09** — Raised a $10M Series A led by Google Ventures, closing in 14 days.
- **2025-05** — Raised a $3.5M seed round led by Google Ventures and Y Combinator.
- **2025-01** — Reported 3,000+ organizations and 50M+ CI jobs running monthly on the platform.

## Links

- Website: https://www.blacksmith.sh
- LinkedIn: https://www.linkedin.com/company/blacksmithrun
- GitHub: https://github.com/useblacksmith

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Profile page: https://yespress.io/blacksmith
Published by YesPress — https://yespress.io
Last updated: 2026-07-13