Enterprise Product Manager

Blacksmith hits $1B unicorn valuation after sequoia-led $66M Series C. Tl;dr. * Blacksmith has raised a $66 million Series C led by Sequoia Capital, reaching a $1 billion valuation and officially entering unicorn territory. * The platform, which provides high-performance cloud infrastructure to run and test AI-generated code, has seen explosive demand as AI coding assistants flood developer workflows with code that needs verification. * With fresh capital, Blacksmith plans to scale its compute fleet, expand enterprise adoption, and compete in the increasingly crowded AI developer tools market. A new unicorn for the AI coding era. Blacksmith, the startup building infrastructure to help companies run and test AI-generated code, is now a unicorn. The company announced it has raised $66 million in a Series C funding round led by Sequoia, pushing its valuation to $1 billion. The milestone makes Blacksmith one of the latest infrastructure startups to hit unicorn status on the back of the generative AI boom. Founded to solve the painfully slow and expensive problem of continuous integration, Blacksmith offers blazing-fast, high-performance cloud runners for software testing. Its timing has proven ideal: as tools like GitHub Copilot, Cursor, and Claude Code generate code at unprecedented scale, engineering teams need far more compute to review, test, and ship that code safely. What drove the round. The round was driven by surging demand for what Blacksmith calls testing infrastructure for the AI era. The company says its revenue has grown rapidly over the past year as both startups and large enterprises adopted AI coding tools and turned to Blacksmith to keep up with the testing workload. Sequoia led the Series C with participation from existing investors. Sources close to the company point to customer growth, strong retention among AI-native engineering teams, and technical differentiation in speed and cost-efficiency as key factors behind the firm's conviction and the $1 billion valuation. Previously, Blacksmith had raised significant venture funding from top-tier firms, steadily building its reputation among developers for offering a drop-in, 2x faster alternative to GitHub Actions runners and other legacy CI providers. Fitting into the AI coding boom. Blacksmith sits at a critical chokepoint in the modern software stack. AI can now write code in seconds, but that code still has to be built, tested, and deployed - a process that can take tens of minutes on outdated infrastructure. By offering dedicated, high-performance gaming CPUs, accelerated caching, and autoscaling compute optimized specifically for CI workloads, Blacksmith cuts test times dramatically. For companies where AI agents are now opening dozens of pull requests per day, that speed translates directly into developer productivity. The startup is increasingly positioning itself not just as a CI company, but as the execution layer for AI agents - the place where machine-written code gets validated before it reaches production. What unicorn status means. Hitting a $1 billion valuation brings both capital and expectations. For Blacksmith, unicorn status provides the war chest to compete against hyperscalers like GitHub, GitLab, and AWS, all of which offer their own CI infrastructure. The company says it plans to use the $66 million to expand its engineering team, grow its global compute fleet, launch new products for enterprise compliance and security, and invest heavily in support for AI agent workflows. It also signals Sequoia's broader bet: that the biggest winners in AI coding won't just be the models or copilots that write code, but the picks-and-shovels infrastructure that lets companies trust and ship it. The road ahead. Challenges remain. The developer infrastructure market is fiercely competitive, price-sensitive, and dominated by incumbents bundled into existing platforms. Blacksmith will need to prove it can win large enterprise contracts while maintaining its developer-loved reputation for speed and simplicity. But with AI-generated code volumes only accelerating, the need for fast, scalable testing is becoming non-negotiable. If Blacksmith can become the default testing layer for the AI era, its Sequoia-led Series C may be remembered as the round where it pulled decisively ahead. AndroGuider Team Articles written by the AndroGuider team. Androguider try to make them thorough and informational while being easy to read.

Blacksmith raises sequoia-led Series C at $1 billion valuation to scale code validation. Oct 21, 2026, 09:15 ET Company's ARR grew 17x since January, with more than 10,000 startups and enterprise companies running builds and tests on its platform. SAN FRANCISCO, Oct. 21, 2026 /PRNewswire/ - Blacksmith, the infrastructure platform for building and testing code, today announced a $66M Series C led by Sequoia Capital at a $1 billion valuation, with participation from Premji Invest and existing investors Peak XV Partners, GV and Y Combinator. The round brings Blacksmith's total funding to $125 million and will enable the company to grow its team and expand its compute footprint. For years, writing code was the slow part of shipping software. With AI coding agents now producing a large and growing share of the world's code, the burden has changed from writing code to validating it. Every change still has to be built and tested before it can be merged, a step known as continuous integration, or CI. Most companies run CI on general-purpose cloud infrastructure that was never designed for it. As developers push more code, teams hit longer waits for compute, slower builds on older-generation CPUs, and a constant fight between over- and under-provisioning. Anthropic reported last month that its own CI volume grew 25x in six months as Claude took over most of its code output. "Since Claude Code took off in March, almost every conversation we've had with a large engineering team has started the same way. Developers who used to push three or four pull requests a day are now pushing orders of magnitude more and their CI infrastructure can't keep up. We're grateful to our customers who are trusting us to solve this bottleneck, and excited to partner with Sequoia to solve it at scale," said Aditya "JP" Jayaprakash, co-founder and CEO of Blacksmith. CI is the most variable workload a company runs: a single customer's demand regularly jumps from zero to tens of thousands of CPUs and back again. Blacksmith has designed every part of its infrastructure stack to absorb those spikes as a matter of routine. Customers switch with a one-line change to their workflow file and never provision, scale or maintain their CI infrastructure again. Developers using Blacksmith see their CI jobs complete twice as fast and at 60% lower cost on average, with zero operational overhead. Since January, the number of CI jobs running on Blacksmith each week has grown from 5 million to more than 90 million, and annual recurring revenue has grown 17x. "JP and team understood early that as AI agents wrote more code, the infrastructure to build and test it would need to change," said Isaiah Boone, Partner at Sequoia Capital. "What stood out to us was their deep systems expertise and speed of execution. That has translated into a product that helps their customers test and ship their software faster. We believe that foundation gives Blacksmith room to build much more as the demands of software development change." Blacksmith was founded in 2024 by Jayaprakash, Aayush Shah and Aditya Maru, who met as undergraduates at the University of Waterloo. Shah and Maru were early engineers at Cockroach Labs, and Jayaprakash was an engineer at Faire. All three are developers who have run spiky, large-scale infrastructure before, and they built Blacksmith on the bet that testing code, not writing it, would become the constraint on shipping software. More than 10,000 companies, including Ashby, Granola, Handshake and LangChain, now run their CI on Blacksmith. The company manages nearly 10 MW of compute across data centers in the United States and Europe and is on track to grow that footprint at least 5x in 2027. "Blacksmith has significantly reduced the burden of managing our CI runners while cutting our runner costs by roughly 40%, and that doesn't even account for the engineering time we've saved," said Joaquin Borggio, Infrastructure Engineer at LangChain. To learn more or move your CI to Blacksmith, visit blacksmith.sh. Blacksmith is hiring engineers in New York and San Francisco at blacksmith.sh/careers. Follow Blacksmith on LinkedIn and X. About Blacksmith Blacksmith is the infrastructure platform for building and testing code. Companies bring Blacksmith their builds and tests, and Blacksmith runs them twice as fast and at 60% lower cost on average, on infrastructure purpose-built for CI workloads. More than 10,000 companies, including Ashby, Granola, Handshake and LangChain, run their CI on Blacksmith. The company was founded in 2024 by Aditya (JP) Jayaprakash, Aayush Shah and Aditya Maru and is backed by Sequoia Capital, Premji Invest, Peak XV Partners, GV and Y Combinator. For more information, visit blacksmith.sh. SOURCE Blacksmith