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Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Depthfirst announced a $40 million Series A on January 14, 2026, led by Accel. The company said it would use the proceeds for research and development, go-to-market efforts, and hiring. That $40 million is the Series A amount—not Depthfirst’s cumulative funding: on March 31, 2026, the company announced an $80 million Series B and said it had raised $120 million in total.
What does Depthfirst do?
Depthfirst describes itself as an applied AI lab building General Security Intelligence, an enterprise software platform designed to identify, triage, and remediate security vulnerabilities across software and infrastructure. Its current product description includes code security, agentic penetration testing, secrets and sensitive-data scanning, and supply-chain analysis. These are software capabilities, not physical products. Depthfirst product page
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The company says it was founded in 2024. Its company-provided biographies describe co-founder and CEO Qasim Mithani as having built developer and security products at AWS and infrastructure and enterprise platforms at Databricks; co-founder Daniele Perito as a Faire co-founder and former Cash App security and fraud leader who also researched security at UC Berkeley; and co-founder Andrea Michi as a research engineering lead at Google DeepMind. Depthfirst company page
Who led the $40 million Series A?
Accel led the Series A. Other named participants were Alt Capital, BoxGroup, Liquid 2 Ventures, Mantis VC, SV Angel, and angel investors Jeff Dean, Kirsten Green, Colin Evans, Logan Kilpatrick, and Julian Schrittwieser. Depthfirst announced the round on January 14, 2026. Depthfirst Series A announcement
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How did Depthfirst say it would use the funding?
The company said proceeds would support research and development, go-to-market work, and hiring across applied research, engineering, product, and sales. The announcement did not allocate specific amounts to those categories. Depthfirst Series A announcement
What did Depthfirst claim about its security platform?
In its January 2026 Series A announcement, Depthfirst said its agents found eight times more true-positive vulnerabilities than traditional static-analysis tools while reducing false positives by 85%. It also reported a 90% performance improvement over its previous CyberGym benchmarks. These are company-reported comparisons; the announcement does not establish independent verification of the figures. Depthfirst Series A announcement
The announcement named Lovable, Supabase, Moveworks, and AngelList as customers, and included customer representatives’ comments. Those references and descriptions of customer experience are company-provided, rather than independent assessments. CEO Qasim Mithani summarized the company’s premise this way: “We’ve entered an era where software is written faster than it can be secured.”
Did Depthfirst raise more money after the Series A?
Yes. On March 31, 2026, Depthfirst announced an $80 million Series B led by Meritech Capital, with participation from Forerunner Ventures, The House Fund, and existing investors. The company said this round brought total capital raised to $120 million and introduced its first in-house security model, dfs-mini1. Business Wire Series B announcement
| Round | Announcement date | Amount | Lead investor | Company announcement |
|---|---|---|---|---|
| Series A | January 14, 2026 | $40 million | Accel | Proceeds for R&D, go-to-market efforts, and hiring. Depthfirst announcement |
| Series B | March 31, 2026 | $80 million | Meritech Capital | Company said total raised reached $120 million and announced dfs-mini1. Business Wire announcement |
What the funding figures mean
The $40 million figure remains correct when referring specifically to Depthfirst’s Series A. It is not the company’s latest round or its cumulative funding total: the subsequent $80 million Series B brought the total reported by Depthfirst to $120 million as of March 31, 2026. Accel partner Sara Ittelson described the opportunity as a “$400B” enterprise-market corner in the Series A announcement; that is her attributed characterization, not an independently established market-size estimate. Depthfirst Series A announcement
