Blacksmith
United States · Developer tools · Enterprise software
Cloud infrastructure for building and testing software through continuous integration workflows.
Compute for software validation
Blacksmith runs continuous integration workloads for software teams. Companies bring the builds and tests they need to complete before code is merged, and Blacksmith supplies the computing infrastructure to execute that work.
The service is designed for demand that can change rapidly as developers and coding agents generate more code. It manages capacity across data centres in the United States and Europe, allowing teams to focus on their software rather than operating the underlying build infrastructure.
Infrastructure for growing teams
Founded by Aditya Jayaprakash, Aayush Shah and Aditya Maru, Blacksmith serves more than 10,000 companies, according to its October 2026 announcement. Customers include Mercury, Granola, Handshake and LangChain.
The company operates across New York and San Francisco and plans to expand its computing footprint. Its product centres on the validation work that follows code generation: running builds and tests before changes reach production.
Funding history
2 rounds · 2 with disclosed amounts| Announced | Round | Amount | Investors |
|---|---|---|---|
| Series C | $66M | Sequoia Capital — LeadGV (Google Ventures) — ParticipantPeak XV Partners — ParticipantPremji Invest — ParticipantY Combinator (YC) — Participant | |
| Series B | $45M | GV (Google Ventures) — Role not disclosedPeak XV Partners — Role not disclosedY Combinator (YC) — Role not disclosed |