San Francisco-based Nullify closed a $12.5 million Seed round led by SYN Ventures, with participation from Black Nova Venture Capital. The round brings total funding to $16.9 million.
Led by CEO Shan Kulkarni and CTO Tim Thacker, Nullify replaces fragmented scanners with an autonomous AI workforce that monitors codebases and cloud configurations. Powered by its “Vault” organizational memory, the platform auto-resolves vulnerabilities and delivers merge-ready fixes with a 90% success rate. This transition to closed-loop, verticalized automation mirrors the “living memory” architecture seen in Sentra’s decision synthesis platform.
Market Signal
- The Outcome Alpha: Nullify shifts the metric from “vulnerability detection” to “vulnerability resolution.” By saving 48,000+ manual work hours across dozens of customers, the platform proves that AI agents can move from providing insights to providing labor, effectively expanding a firm’s security headcount without new hires.
- Operating Partnership: The addition of Glenn Chisholm (former CISO and SYN Ventures partner) to the board provides Nullify with a direct line to enterprise security buyers. This “practitioner-led” backing is a strong signal that Nullify’s autonomous model is being built for real-world risk, not just theoretical automation.
- The Integration Friction: A primary execution hurdle is the “Developer Trust” barrier; for Nullify to scale, it must maintain its 90% merge-ready rate across increasingly complex, custom codebases without introducing regression bugs, which could quickly turn developer sentiment against autonomous patching.
Key Details
- Funding: $12.5M ($16.9M total)
- Lead Investor: SYN Ventures
- CEO: Shan Kulkarni
- Use Case: Autonomous AI workforce for vulnerability triage and remediation
