Blacksmith
Low Trafficblacksmith.sh
Overview
Blacksmith provides drop-in bare-metal runner infrastructure for GitHub Actions, enabling teams to run CI/CD pipelines up to 2× faster at roughly 60% lower cost than GitHub's native runners. The service uses high-performance gaming CPUs and co-located caching to eliminate queue times and dramatically speed up Docker builds. It targets engineering teams seeking faster, cheaper continuous integration without changing their existing workflows.
By the Numbers
Founders
The founding team has not been publicly disclosed on the company's website or in major press coverage.
Despite limited public information about founders, the company has scaled to 3,000+ organizations and 50M+ jobs/month, suggesting strong technical roots.
Funding
Competitors
Blacksmith claims ~2× faster speeds and ~60% lower cost versus GitHub's own hosted runners
Buildkite is a broader CI/CD orchestration platform; Blacksmith focuses purely on faster, cheaper runner infrastructure
Depot focuses primarily on Docker/container build acceleration; Blacksmith covers general GitHub Actions workloads plus Docker
Namespace offers fast GitHub Actions runners with similar bare-metal/VM approach; competing directly in the same niche
WarpBuild also offers fast GitHub Actions runners with cost savings; very similar value proposition to Blacksmith
Revenue & Model
Hiring Signals
Tech Stack
Web Presence
Verified from public records — not AI-estimated.
Trackers & Analytics
Scanned from the HTML blacksmith.shserves — scripts a tag manager injects later won't appear here.
How They're Doing
Blacksmith appears to be growing strongly, having reached over 3,000 organizations and processing more than 50 million CI jobs per month. The product has garnered significant developer enthusiasm with 30,000+ developers reporting positive experiences. Its presence on HackerNews and organic developer community traction suggest healthy bottom-up adoption.
●Surpassed 3,000 organizations using the platform
●Processing 50M+ GitHub Actions jobs per month
Prognosis
Blacksmith is well-positioned in the fast-growing developer infrastructure market as teams increasingly demand faster and cheaper CI/CD. The drop-in compatibility with GitHub Actions lowers switching friction significantly, aiding continued growth. However, competition from similar services and potential first-party improvements by GitHub itself represent the primary threats.
●Expanding support to GitLab CI, Bitbucket, or other CI platforms beyond GitHub Actions
●Enterprise sales motion targeting large engineering organizations with high CI spend
●Adding GPU runners for AI/ML workloads as demand grows
●Geographic expansion of data center presence to reduce latency globally
●GitHub could improve native runner performance or reduce pricing, narrowing Blacksmith's advantage
●Well-funded competitors like Buildkite and Depot competing in the same space
●Dependency on GitHub's Actions platform means any API or policy changes could be disruptive
●Early-stage company risks: unknown funding status may limit ability to scale infrastructure
Recent News
Blacksmith surpasses 3,000 organizations and 50M monthly CI jobs processed
blacksmith.sh
Blacksmith launches drop-in bare-metal GitHub Actions runner with 40× faster Docker builds
HackerNews
Fun Facts
- 01Blacksmith uses gaming CPUs — originally designed for high-frequency consumer gaming — to power enterprise CI/CD workloads, an unconventional hardware choice that delivers outsized single-core performance
- 02The company achieves 40× faster Docker builds largely by co-locating layer caches in the same data center as the runners, eliminating network latency as a bottleneck
- 03With only a two-line change to a GitHub Actions YAML file, teams can migrate entirely to Blacksmith runners — one of the lowest-friction infrastructure switches in developer tooling
Timeline
30,000+ developers report positive experiences with the platform
Crossed 50 million GitHub Actions jobs processed per month
Reached 3,000+ organizations on the platform
Product launched as a drop-in replacement for GitHub-hosted runners using bare-metal gaming CPUs
Blacksmith founded, targeting GitHub Actions runner acceleration