Nullify

Nullify is an AI-native application-security platform that runs autonomous agents to scan code and cloud, validate findings, prioritize by business impact and generate merge-ready fixes. It bundles SAST, SCA, DAST and secrets scanning under a single agentic layer and targets mid-market and high-growth software teams that want to reduce manual triage. As an early-stage, independent startup (seed-funded in February 2026), it is promising but unproven at scale relative to established AppSec vendors.

Nullify positions itself as a team of autonomous AI security engineers rather than a single scanner. The platform ingests source code, cloud configurations and business context to build an understanding of an organization's stack, then runs a combination of static analysis (SAST), software composition analysis (SCA), dynamic testing (DAST) and secrets detection. Its differentiator is agentic triage: the system attempts to validate findings and generate proofs of exploitability so security teams spend less time on false positives. The company claims meaningful noise reduction (it markets an ~85% reduction in false positives) and can produce merge-ready fixes that plug into developer workflows such as GitHub and Jira. This 'shift-left, then remediate' framing targets mid-sized software companies and high-growth SaaS teams that lack a large dedicated AppSec function and want automation to stretch limited headcount. Nullify was founded in 2022 and is an independent, early-stage vendor. In February 2026 it closed a $12.5M seed round led by SYN Ventures with participation from Black Nova Venture Capital, bringing total disclosed funding to roughly $16.9M. As with most companies at this stage, buyers should expect a young platform, rapid roadmap changes and a product still proving itself against established AppSec incumbents.