FusionAuth vs Zscaler
Side-by-side comparison of AI visibility scores, market position, and capabilities
FusionAuth is the only downloadable CIAM platform with a hybrid deployment model; achieved 100%+ revenue growth entering 2025, serves 450+ global organizations, and earned ISO 27001 and KuppingerCole Rising Star recognition.
About
FusionAuth is a developer-centric Customer Identity and Access Management (CIAM) platform headquartered in Denver, Colorado. Founded to give development teams full control over user authentication without vendor lock-in, FusionAuth provides SSO, multi-factor authentication, passwordless login, OAuth 2.0, and advanced user management in a package that can be self-hosted, deployed on any cloud, or consumed as a managed SaaS. Its unique hybrid deployment model — supporting both self-hosted and cloud options — is the primary differentiator in a CIAM market dominated by cloud-only or proprietary platforms.
San Jose zero trust security (NASDAQ: ZS) surpassing $3B ARR FY2025; 500B+ daily transactions across 160+ data centers for 8,650+ enterprises and 35% Forbes Global 2000 competing with Palo Alto Prisma for enterprise zero trust.
About
Zscaler is a San Jose, California-based cloud security company — publicly traded on NASDAQ (NASDAQ: ZS) at approximately $30 billion market capitalization — operating the world's largest security cloud, the Zscaler Zero Trust Exchange, that processes 500+ billion daily transactions across 160+ data centers globally. In fiscal year 2025 (ended July 31, 2025), Zscaler surpassed $3 billion in annual recurring revenue (ARR) with Q4 FY2025 revenue of $719.2 million (21% year-over-year growth), serving 8,650+ enterprise customers including 35% of the Forbes Global 2000. The platform's flagship products — Zscaler Internet Access (ZIA, secure web gateway), Zscaler Private Access (ZPA, zero trust network access), and Zscaler Digital Experience (ZDX, application performance monitoring) — have eliminated traditional VPN and network perimeter architectures for thousands of enterprises. Founded in 2007 by CEO Jay Chaudhry (serial security entrepreneur who built and sold four prior security companies); IPO March 2018.
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