Funding·October 21, 2026 at 7:00 AM EDT·3 sources
Blacksmith hits unicorn valuation after Sequoia leads Series C
raise, log scale$66M
$100M$1B$10B$100B
What happened
- Blacksmith raised a $66M Series C led by Sequoia Capital at a $1B valuation.
- Its valuation rose from $550M after a $45M Series B in August.
- The startup provides infrastructure for testing code before it ships, amid rising AI-generated code volumes.
Series C
$66M
Valuation
$1B
Previous valuation
$550M
Series B
$45M
Why it matters
The financing reflects investor demand for software infrastructure supporting AI-generated code and automated testing. It may increase attention on venture funding for developer-tools businesses.
Deal terms
raise
Sequoia Capital → Blacksmith
Value
$66M
Investors
Sequoia Capital
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Timeline
- First reported by FortuneOct 21Exclusive: AI code-testing startup Blacksmith hits $1 billion valuation as AI-written code surges
- Techmeme reportsOct 21AI code-testing startup Blacksmith raised a $66M Series C led by Sequoia Capital at a $1B valuation, up from $550M after raising a $45M Series B in August (Beatrice Nolan/Fortune)
- TechCrunch reportsOct 21Blacksmith hits unicorn valuation after Sequoia leads Series C
Who is involved
investing inBlacksmith hits unicorn valuation after Sequoia leads Series CBlacksmithtargetSequoia Capitalbuyer
CompanyInvestorThe deal
Sources (3)
- FortuneOct 21Exclusive: AI code-testing startup Blacksmith hits $1 billion valuation as AI-written code surges
- TechmemeOct 21AI code-testing startup Blacksmith raised a $66M Series C led by Sequoia Capital at a $1B valuation, up from $550M after raising a $45M Series B in August (Beatrice Nolan/Fortune)
- TechCrunchOct 21Blacksmith hits unicorn valuation after Sequoia leads Series C
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