Agentic Pentester
Depthfirst software for testing running applications to assess reported vulnerabilities.


Startup · United States
HQ San FranciscoFounded 202411-50 employees
AI-native security that thinks like an elite security research team and works across your code, dependencies, infrastructure, and live environment.
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Mar 31, 2026 | Series B | $80.0M | $580M? | Meritech Capital | Accel, Alt Capital, Box Group, BoxGroup, Forerunner Ventures, Liquid 2 Ventures, MANTIS Venture Capital, The House Fund | Confirmed |
| Jan 14, 2026 | Series A | $40.0M | — | Accel | Alt Capital, BoxGroup, Liquid 2 Ventures, MANTIS Venture Capital, SV Angel | Reported |
Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.
Depthfirst software for testing running applications to assess reported vulnerabilities.
Depthfirst software for analyzing code, business logic, and data flows for potential vulnerabilities.
Depthfirst software for inspecting software packages for potentially malicious behavior.
A security model for vulnerability discovery and validation across enterprise repositories.
Depthfirst module for identifying credentials and sensitive data in code and development environments.
Depthfirst software for reviewing code changes for security issues and proposing fixes.
Newest unveiled first. Open a system for its milestone timeline, components and sources.
Founder
Founder
Founder
San Francisco, On Site · Full Time · Commercial
Open when checked · Company careers page
Checked Oct 13, 2026
Analytics & GTM Operations Lead ↗
San Francisco, On Site · Full Time · Other
Open when checked · Company careers page
Checked Oct 13, 2026
San Francisco, On Site · Full Time · Engineering
Open when checked · Company careers page
Checked Oct 13, 2026
San Francisco, On Site · Full Time · Other
Open when checked · Company careers page
Checked Oct 13, 2026
Forward-Deployed Security Engineer ↗
San Francisco, On Site · Full Time · Engineering
Open when checked · Company careers page
Checked Oct 13, 2026
San Francisco, On Site · Full Time · Engineering
Open when checked · Company careers page
Checked Oct 13, 2026
San Francisco, On Site · Full Time · Engineering
Open when checked · Company careers page
Checked Oct 13, 2026
Checked Oct 13, 2026
San Francisco, On Site · Full Time · Commercial
Open when checked · Company careers page
Checked Oct 13, 2026
Checked Oct 13, 2026
A sample of observed listings, not a total vacancy count. Availability may have changed since collection. Categories are inferred from job titles.
PitchBook · Supports Organization · employee range, Organization · founded year, Organization · linkedin url, Organization · x url
“employee_range: 11-50 (profile: 25)”
Sixth-Domain · Supports Organization · country, Organization · kind
“{"country": "USA", "hq_iso2": "US", "id": "78d40b7c-a8ed-45ae-b0e9-031a317b1d13"}”
LinkedIn · Supports Organization · hq city, Organization · linkedin url
“hq_city: San Francisco”
depthfirst · Supports Organization · description, Organization · name, Organization · website, System
“AI-native security that thinks like an elite security research team and works across your code, dependencies, infrastructure, and live environment.”
depthfirst · Supports System
“dfs-large1 is our most capable model to date, designed for vulnerability discovery and validation across large enterprise repositories.”
depthfirst · Mar 31, 2026 · Supports Funding round, Funding round · amount, Organization · ownership
“emerged from stealth with $40M in Series A funding”
Forbes · Mar 31, 2026 · Supports Funding round · post money valuation usd
“announced an $80 million raise at a $580 million valuation”
depthfirst · Jan 14, 2026 · Supports Funding round · amount
“depthfirst, an applied AI lab shaping the future of software security, today announced its $40M Series A round, led by Accel with participation from Alt Capital, BoxGroup, Liquid 2 Ventures, Mantis VC, SV Angel, and notable angel investors including Jeff Dean, Kirsten Green, Colin Evans, Logan Kilpatrick, and Julian Schrittwieser.”
TechCrunch · Jan 14, 2026 · Supports Funding round, Funding round · amount
“the company raised the round from Accel Partners, which led the investment, with participation from SV Angel, Mantis VC, and Alt Capital”
Crunchbase · Supports Organization · employee range, Organization · hq city, Organization · linkedin url, Organization · x url, Role
“employee_range: 11-50 (profile: 11-50)”
Supports Job posting
“Technical Account Manager Sales, San Francisco, On Site, Full Time”
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.