Company Overview
About Zscaler
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.
Business Model & Competitive Advantage
Zscaler's Zero Trust Exchange architecture addresses the security perimeter obsolescence that cloud adoption has created: traditional enterprise security (hub-and-spoke network with perimeter firewalls, VPN for remote access, internal network inspection appliances) assumes that corporate resources live inside a defined network perimeter and that VPN-authenticated users should access that network directly. Cloud-first enterprises with 100+ SaaS applications, remote and hybrid workforces, and zero on-premises infrastructure have no meaningful perimeter to protect — VPN creates a broader attack surface (every VPN-connected device becomes a lateral movement path if compromised) while slowing application performance for users far from VPN concentrators. Zscaler's inline proxy (routing all user internet and private app traffic through Zscaler's cloud nodes nearest the user's location, applying zero trust policy per-connection rather than per-network) provides the security inspection and access control that remote work and cloud architectures require without the VPN latency or lateral movement risk.
Competitive Landscape 2025–2026
In 2025, Zscaler competes in the zero trust security, SSE (Security Service Edge), and cloud security market with Palo Alto Prisma SASE (NASDAQ: PANW, integrated SASE, $8B+ security revenue), Netskope (NASDAQ: NTSK, SSE platform, IPO September 2025), and Cloudflare One (NYSE: NET, Zero Trust platform, $1.6B+ revenue) for enterprise security team VPN replacement, zero trust network access, and secure web gateway platform adoption. The $3B+ ARR milestone establishes Zscaler as the largest pure-play zero trust security company. The Red Canary acquisition ($675M) adds managed detection and response (MDR) capabilities alongside zero trust access. The 2025 strategy focuses on the ZPA replacement for legacy network segmentation tools (moving from network-level access control to application-level zero trust), growing the Zscaler for AI protection use case (securing LLM API traffic for enterprise AI applications), and expanding the Zero Trust SD-WAN for branch office connectivity.
The Zscaler Story
Founders
Company Timeline
Major milestones in Zscaler's journey
Leadership Team
Meet the leaders behind Zscaler
Jay Chaudhry
Serial entrepreneur who founded Zscaler in 2007 after successfully building and selling four previous security companies. Recognized as a visionary in Zero Trust security and cloud transformation, Chaudhry has led Zscaler from startup to a multi-billion dollar public company.
Kevin Rubin
Appointed CFO in May 2025, Rubin brings extensive financial leadership experience from BetterUp and Alteryx. He oversees financial strategy, operations, and investor relations as Zscaler scales beyond $3 billion in ARR.
Dali Rajic
Leads operational excellence across Zscaler's global organization, ensuring the company can scale efficiently while maintaining the world's largest security cloud with 99.999% uptime.
Mike Rich
Appointed in November 2023, Rich brings over 25 years of sales leadership experience from ServiceNow, Rational Software, and Borland. He leads Zscaler's global sales organization to drive $5 billion+ ARR targets.
Joyce Kim
Joined as CMO in November 2023 from Twilio, where she previously served as CMO. Also held CMO roles at Genesys and Arm, bringing deep expertise in B2B technology marketing and brand strategy.
Praniti Lakhwara
Oversees Zscaler's internal IT infrastructure and systems, previously serving as CIO at Conga and VP of IT at Nimble Storage. Ensures operational efficiency across the global organization.
Phil Tee
Leads Zscaler's AI-driven security innovations, previously co-founding an enterprise AI monitoring solutions provider. Focuses on integrating advanced AI capabilities across the Zero Trust Exchange platform.
Open Positions
Reddit Discussions
Key Differentiators
Market Leader
Zscaler is recognized as a market leader in the Security sector, demonstrating strong industry presence and customer trust.
Enterprise Scale
With $3000M in revenue, Zscaler operates at enterprise scale with proven market validation.
Top 10 Ranked
Ranked #6 in the Security category, among the industry's best.
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