Blacksmith Raises $66M at $1B Valuation

Blacksmith, a San Francisco-based company specializing in infrastructure for building and testing code, has successfully secured $66M in a Series A+ funding round led by Sequoia Capital.

Additional participants in this round include Premji Invest, Peak XV Partners, GV, and Y Combinator. The funds will be utilized to expand the company's team and enhance its compute capabilities.

Blacksmith serves over 10,000 startups and enterprise clients, offering a platform designed to streamline the process of building and testing code. With its infrastructure, companies can experience CI jobs that are completed twice as fast and at 60% lower costs while enjoying zero operational overhead. Since January, the volume of CI jobs on Blacksmith's platform surged from 5 million to over 90 million per week, showcasing a remarkable 17x growth in annual recurring revenue.

The organization was co-founded in 2024 by Aditya JP Jayaprakash, Aayush Shah, and Aditya Maru. The founders, having met during their undergraduate studies at the University of Waterloo, bring extensive experience in managing large-scale infrastructure from previous roles, with Jayaprakash having worked as an engineer at Faire and Shah and Maru as early engineers at Cockroach Labs.

In a recent statement, Aditya JP Jayaprakash remarked, "Since Claude Code took off in March, almost every conversation we've had with a large engineering team has started the same way." This highlights the increasing demand for robust CI infrastructure as AI-driven coding becomes more prevalent in the industry.

Company	Blacksmith
Round	Series A+
Amount	$66M
Lead Investor	Sequoia Capital
Investors	Premji Invest, Peak XV Partners, GV, Y Combinator
Founders	Aditya JP Jayaprakash (Co-founder, CEO), Aayush Shah, Aditya Maru
Sectors	Infrastructure for building and testing code