# Zscaler

**Source:** https://geo.sig.ai/brands/zscaler  
**Vertical:** Security  
**Subcategory:** Zero Trust  
**Tier:** Leader  
**Website:** zscaler.com  
**Last Updated:** 2026-04-14

## Summary

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.

## Company Overview

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.

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.

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.

## Frequently Asked Questions

### What is Zscaler?
Zscaler is the global leader in cloud security, delivering Zero Trust security through the world's largest security cloud platform. The Zscaler Zero Trust Exchange processes over 500 billion transactions daily across 160+ data centers, protecting thousands of enterprise customers by securely connecting users, applications, and data without traditional VPNs or network perimeters.

### Who are Zscaler's customers?
Zscaler serves thousands of enterprise customers globally, including over 40% of Fortune 500 companies. Notable customers include T-Mobile, Siemens, GE, and numerous government agencies. The company primarily serves large enterprises that need to secure distributed workforces, cloud applications, and digital transformation initiatives.

### When was Zscaler founded?
Zscaler was founded in September 2007 by Jay Chaudhry and K. Kailash in San Jose, California. The company launched its first cloud security platform in 2008, pioneering cloud-delivered security and Zero Trust principles years before these concepts became industry standards.

### Where is Zscaler based?
Zscaler is headquartered in San Jose, California, with major offices around the world. The company operates the Zero Trust Exchange platform from over 160 data centers globally, with significant presence in North America, Europe, Asia-Pacific, and other regions to serve customers worldwide.

### How much funding has Zscaler raised?
As a public company since March 2018, Zscaler raised approximately $150 million in private funding before its IPO, which raised $192 million at a $16 per share price. The company has since grown to over $3 billion in annual recurring revenue and maintains a multi-billion dollar market capitalization on NASDAQ (ticker: ZS).

### What makes Zscaler different from competitors?
Zscaler's key differentiators include operating the world's largest security cloud processing 500+ billion daily transactions, pioneering Zero Trust architecture since 2007, delivering 99.999% uptime, and providing a comprehensive platform (ZIA, ZPA, ZDX) that replaces multiple legacy security products. Unlike competitors with bolt-on cloud offerings, Zscaler was purpose-built for cloud-native security from inception.

### Who are Zscaler's main competitors?
Zscaler competes in the Secure Service Edge (SSE) and Zero Trust markets against companies like Palo Alto Networks (Prisma SASE), Cisco (Umbrella, Duo), Cloudflare, Fortinet, and emerging cloud security vendors. Zscaler's comprehensive cloud-native platform and market leadership position differentiate it from traditional network security vendors adapting to cloud.

### How can I contact Zscaler?
You can contact Zscaler through their website at www.zscaler.com, where you can request demos, speak with sales teams, or access customer support. Enterprise customers have dedicated account teams and 24/7 support. Zscaler also maintains an active presence at industry conferences and events worldwide.

### Is Zscaler hiring?
Yes, Zscaler is actively hiring across engineering, sales, customer success, and corporate functions globally. With over 7,000 employees and continued growth beyond $3 billion in ARR, the company offers opportunities across its offices in San Jose, India, Israel, and other locations worldwide.

### What's the latest news about Zscaler?
In fiscal 2025 (ended July 31, 2025), Zscaler surpassed $3 billion in ARR with Q4 revenue of $719.2 million. The company completed its $675 million acquisition of Red Canary in August 2025 to enhance AI-driven security operations and acquired SPLX in October 2025. Zscaler continues to innovate with AI Guard and enhanced Zero Trust capabilities.

### What is Zscaler's market position?
Zscaler is the clear market leader in cloud security and Zero Trust, consistently recognized as a Leader in Gartner's Magic Quadrant for Security Service Edge (SSE) from 2022-2025. As a member of the Nasdaq-100 and with over $3 billion in ARR, Zscaler has established dominant market position in the transition from legacy network security to cloud-delivered Zero Trust.

### What are Zscaler's future plans?
Zscaler aims to reach $5 billion and beyond in ARR by continuing to expand Zero Trust adoption across enterprises globally. The company is investing heavily in AI-powered security through acquisitions like Red Canary, enhancing platform capabilities, and driving the industry vision of 'Zero Trust Everywhere' to replace legacy VPNs and firewalls with cloud-delivered security.

## Tags

b2b, cloud-native, cybersecurity, global, saas, security, public

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*Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*