Depthfirst
Depthfirst is a cybersecurity company specializing in Application Security, founded in 2024 and headquartered in San Francisco, United States. It has raised $120M in equity across 2 priced rounds, employs about 42 people, and is privately held.
updated Sep 12, 2026
Latest Depthfirst news and company activity
What Depthfirst did, dated — selected moves from the record, one per kind, newest first.
- Aug 2026Product launchdepthfirst Announces dfbench, a Cybersecurity Benchmark for Evaluating Frontier Models and Agentic Systems
- Aug 2026Feature launchIntroducing Threat Model: living security artifacts that capture each repository's architecture, trust boundaries, attacker-controlled inputs
- Jun 2026Acquisitiondepthfirst acquires Almanax team
- Mar 2026Mega roundMeet The $580 Million Startup Making AI Models To Fight Artificial Hackers
Depthfirst Momentum score
77/ 100climbing
Mandos Momentum blends hiring, funding, traffic and sentiment into one score out of 100. The score is free; the pillars behind it unlock in the platform.
Depthfirst funding
Depthfirst has raised $120M in priced equity. Its most recent round was a Series B in March 2026.
- Equity raised
- $120M2 priced rounds
- Last round
- Series BMar 2026
Depthfirst employees and hiring
Depthfirst has about 42 employees, up 5% over the last 30 days, with 11 open roles.
- Employees
- 42
- 30-day change
- +5%
- Open roles
- 11
Depthfirst competitors
Security professionals most often compare Depthfirst against Aikido Security on cybersectools.com. The full competitive set, with overlap scoring, is in the platform.
by search demand for comparison pages on cybersectools.com, 90 days
The other 440 data points.
- Funding historyevery round, every investor named
- Headcount growthvelocity, departments, seniority
- Open jobs11 live postings, role mix
- Tech stackframeworks, clouds, security
