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AI agents automating application security tasks for software development.
Nullify develops an autonomous AI workforce to automate comprehensive product security for enterprises. Its platform integrates into the software development lifecycle, proactively discovering, triaging, and remediating software vulnerabilities 24/7. This system replaces multiple manual tools, streamlining application security, offering continuous monitoring for code integrity and reducing operational overhead.
Nullify was co-founded in Sydney in 2022 by Shantanu Kulkarni, Tim Thacker, and Tony Mao, later relocating to California. The founders established the company on the insight that increasing software complexity demanded a more efficient, secure application security approach. Their expertise aimed to build a solution empowering engineers to deliver secure software without compromising velocity.
The company serves engineering and security teams within organizations seeking to enhance their software security posture. Nullify’s offering automates the entire application security workflow, from vulnerability identification through resolution. Its vision is to establish its AI workforce as the standard for autonomous product security, enabling organizations to maintain robust security, accelerating development cycles.
Nullify has raised $16.6M across 4 funding rounds.
Nullify has raised $16.6M in total across 4 funding rounds.
Nullify has raised $16.6M in total across 4 funding rounds.
Nullify's investors include SYN Ventures, Black Nova Venture Capital, Glenn Chisholm, Black Nova, Root Ventures, Two Sigma Ventures, Conviction Partners, March Capital, Thrive Capital, Mei Z., Ely Kahn, Pascal Boilatt.
Nullify is an AI-first application security company that automates finding, triaging, and fixing software vulnerabilities inside developer workflows by acting as a virtual security engineer integrated into tools like GitHub, Jira and Slack[3][4].[3]
High-Level overview
For a portfolio company
Origin story
Core differentiators
Role in the broader tech landscape
Quick take & future outlook
Quick final note tying back: Nullify’s core claim—to act as a virtual security engineer that not only finds but also triages and fixes vulnerabilities inside developer workflows—captures its product thesis and is the lens through which to watch its technical, commercial, and governance progress[3][4].[3]
Nullify has raised $16.6M across 4 funding rounds. Most recently, it raised $12.5M Seed in February 2026.
| Date | Round | Lead Investors | Other Investors |
|---|---|---|---|
| Feb 5, 2026 | $12.5M Seed | SYN Ventures | Black Nova Venture Capital |
| Feb 5, 2026 | Nullify Seed | SYN Ventures, Glenn Chisholm | Black Nova |
| Mar 1, 2024 | $3.0M Seed | Root Ventures, Two Sigma Ventures | Conviction Partners, March Capital, Thrive Capital, Mei Z., Ely Kahn, Pascal Boilatt, Sajeeb Lohani, Black Nova |
| Sep 11, 2023 | $1.1M Pre-Seed | Andrew Yeo | Black Nova, Cyrise |