Nullify vs SafeStack (aquired by Ninjio)
Nullify
Your AI Application Security team in-a-box
29 employees · est. 2022 · San Francisco, United States
-logo.jpg "SafeStack (aquired by Ninjio)"){kind=logo}
SafeStack (aquired by Ninjio)
Application security training for every stage of your SDLC • Get started at safestack.io 💜
10 employees · est. 2014 · Auckland, New Zealand
SafeStack (aquired by Ninjio) is the older company (2022 vs 2014); Nullify is the larger of the two.
Side-by-Side Comparison
| Metric | Nullify | SafeStack (aquired by Ninjio) |
|---|---|---|
| Founded | ||
| Founded | 2022 | 2014 older |
| Headquarters | ||
| Headquarters | San Francisco, United States | Auckland, New Zealand |
| Employees | ||
| Employees | 29 larger | 10 |
| Industry | ||
| Industry | AI, Cyber Security, Developer Tools | Cyber Security, Developer Tools, EdTech |
| Funding Stage | ||
| Funding Stage | Angel | Seed |
| Total Funding | ||
| Total Funding | $6.33M | $6.35M |
| Funding Rounds | ||
| Funding Rounds | 3 | 3 |
| Services | ||
| Services | AI AppSec Platform, Security Automation, Vulnerability Management, Risk Management | Secure Development Training, AppSec Program Platform, Certification Programs, Role-specific Security Education |
| Target Customers | ||
| Target Customers | Security Teams, Developers, IT and DevOps Professionals | Developers, Team Leads, Security Leaders, Enterprises, Startups, Nonprofits |
| Taxonomy | ||
| Taxonomy | AI Application SecurityDevSecOpsProduct Security AutomationCybersecurity AutomationAI AgentsThreat Modelling +5 | Application SecurityTraining PlatformSecure DevelopmentCybersecurity CultureSDLCSecure Coding +7 |
| Website | ||
| Website | nullify.ai | safestack.io |
About Nullify
Nullify, founded in 2022, is positioning itself at the intersection of AI, Cyber Security, and Developer Tools. The company's slogan, "Your AI Application Security team in-a-box," encapsulates its mission to transform how organizations handle application security. By deploying AI agents that autonom...
About SafeStack (aquired by Ninjio)
SafeStack is a New Zealand-based startup disrupting the Cyber Security, Developer Tools, and Education industries with its community-centric online training platform. Founded in 2014, the company has garnered significant attention and recently secured a NZD4.00MSeed Round investment on 05 December 2...
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Compiled from the BounceWatch company index. We last looked at Nullify on 29 May 2025, and SafeStack (aquired by Ninjio) on 29 Sep 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.
