Nullify, a product security company building what it describes as the world’s first AI workforce for software security teams, has closed a $12.5m seed funding round to accelerate its global growth and platform deployment.
The seed round was led by SYN Ventures, with participation from existing investor Black Nova Venture Capital. As part of the investment, SYN Ventures operating partner Glenn Chisholm has joined Nullify’s board of directors. The latest raise brings the company’s total funding to $16.9m.
Founded to address the growing complexity and speed of modern cyber threats, Nullify positions itself as an alternative to traditional security platforms by offering autonomous AI employees rather than dashboards or tools. The company’s technology is designed to take ownership of core product security workflows, including vulnerability detection, triage, validation and remediation, without relying on manual intervention from overstretched security teams.
Nullify’s AI workforce ingests application code, cloud configurations and business context to autonomously generate exploits, assess real-world business impact and deliver merge-ready fixes directly into development workflows. By automating processes that typically require coordination across multiple tools and teams, the company aims to eliminate tool sprawl and reduce the operational burden that slows down vulnerability remediation.
The new capital will be used to scale Nullify’s go-to-market operations, expand its engineering and research teams, and accelerate international growth. The company said its priority is supporting mid-sized enterprises and high-growth SaaS firms that are facing acute shortages of experienced security professionals while dealing with increasingly sophisticated AI-enabled attacks.
The funding comes amid rising concern that traditional security models are failing to keep pace with the speed of modern threats. Nullify said early customers have already replaced fragmented security stacks and manual processes with its autonomous AI workforce, delivering measurable efficiency gains. According to the company, its AI employees have saved more than 48,000 hours of manual work, automatically resolved over 450 vulnerabilities and achieved an average merge-ready rate of close to 90% for vulnerability fix pull requests.
Nullify board director and SYN Ventures operating partner Glenn Chisholm said, “The security labor gap is the defining challenge for defenders today. Nullify’s first-of-its-kind AI workforce doesn’t just summarize alerts. It autonomously makes decisions and takes action, delivering outcomes that once required entire teams.”
He added, “I’m thrilled to join Nullify’s board as we partner to transform how enterprises defend against relentless, AI-driven threats.”
Nullify CEO and co-founder Shan Kulkarni said, “For organizations facing significantly greater speed and sophistication of AI-enabled attackers, holding the line with legacy dashboards, scanners, and ticket routing is a losing game.”
He added, “Whether organizations have a mature program or zero product security headcount, Nullify AI employees replace tool sprawl and the human hours it consumes, so defenders can finally outpace the offense. With SYN Ventures leading our latest funding, we now have the capital and the operating partnership to scale this model to the teams most constrained by talent shortages and legacy tool complexity.”
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