Blacksmith Reaches $1 Billion Valuation in $66 Million Sequoia-Led Series C

Blacksmith, an infrastructure platform for building and testing software at scale, has raised $66 million in a Series C round led by Sequoia Capital, doubling its valuation to $1 billion just two months after its prior funding round. The investment, which also includes participation from Premji Invest and existing backers Peak XV Partners, Google Ventures, and Y Combinator, brings the company's total raised to $125 million since its 2024 founding.