Overview

Zscaler, Inc. is an American cloud security company headquartered in San Jose, California. Founded in 2007 by Jay Chaudhry and K. Kailash, Zscaler specializes in providing cloud-based security services, including zero trust network access and secure web gateways. The company's solutions are designed to protect enterprise networks and data by securely connecting users, devices, and applications, regardless of location.

History

Founding and Early Years

Zscaler was established in 2007 by Jay Chaudhry and K. Kailash. The company launched its cybersecurity platform in 2008, aiming to offer cloud-native security solutions that eliminate the need for traditional hardware-based security appliances.

Funding and Growth

In August 2012, Zscaler secured $38 million in funding from investors. This was followed by a second funding round in August 2015, led by TPG Capital, which raised $100 million. The company went public in March 2018, raising $192 million through its initial public offering (IPO) and is traded on the NASDAQ under the symbol ZS. Zscaler was added to the NASDAQ-100 index on December 17, 2021.

Acquisitions

Zscaler has expanded its capabilities through several strategic acquisitions:

• –TrustPath (August 2018): Acquired to enhance artificial intelligence and machine learning capabilities.
• –Appsulate (May 2019): Added browser security technology.
• –Cloudneeti (April 2020): Brought in cloud security posture management expertise.
• –Edgewise Networks (May 2020): Strengthened zero trust communications for applications and workloads.
• –Trustdome (April 2021): Focused on cloud infrastructure entitlement management.
• –Smokescreen Technologies (May 2021): Introduced active defense technology.
• –ShiftRight (September 2022): Enhanced workflow automation in cybersecurity operations.
• –Canonic Security (February 2023): Aimed at protecting against software-as-a-service attacks.
• –Avalor (March 2024): Acquired for AI-driven data security analysis.
• –Airgap Networks (April 2024): Focused on network segmentation.
• –Red Canary (May 2025): Added managed detection and response services.

Products and Services

Zscaler offers a range of cloud-based security solutions, including:

• –Zscaler Zero Trust Exchange: A platform that securely connects users, devices, and applications based on zero trust principles.
• –Zscaler Internet Access (ZIA): Provides secure internet access with advanced threat protection.
• –Zscaler Private Access (ZPA): Enables secure remote access to internal applications without the need for traditional VPNs.
• –Zscaler Digital Experience (ZDX): Monitors and enhances user experience for cloud applications.
• –Zscaler Data Protection: Offers data loss prevention and cloud access security broker capabilities.

Financial Performance

As of 2023, Zscaler reported an annual revenue of $2.2 billion, reflecting a 34.1% increase from the previous year. The company has a market capitalization of approximately $44.3 billion and employs over 7,000 individuals worldwide.

Leadership

Jay Chaudhry serves as the Chairman and CEO of Zscaler. Under his leadership, the company has grown to become a significant player in the cloud security industry, serving a diverse range of industries, including technology, healthcare, finance, retail, energy, and manufacturing.

Global Presence

Zscaler operates globally, with offices in countries such as Israel, India, the UK, Switzerland, Spain, and Italy. The company's headquarters are located at 120 Holger Way, San Jose, California.

Industry Recognition

Zscaler has been recognized as a leader in the Gartner Magic Quadrant for Secure Web Gateways for ten consecutive times. In 2021, Gartner introduced the Security Service Edge (SSE) category, and Zscaler has been acknowledged as a leader in this category from 2022 through 2025.

Recent Developments

In August 2025, Zscaler introduced innovations based on artificial intelligence, including automatic segmentation, advanced protection against generative AI threats, and intuitive classification of sensitive data. Additionally, the company launched Zscaler Cellular, a solution designed to protect IoT/OT devices through a simple SIM card, extending zero trust security to physical devices without the need for additional hardware.

Zero Trust Security Model

Zscaler's security solutions are built upon the zero trust security model, which operates on the principle of "never trust, always verify." This approach minimizes attack surfaces, prevents unauthorized access, and halts the lateral movement of threats within networks. The company's Zero Trust Exchange platform inspects over 500 billion transactions daily across more than 150 data centers worldwide, demonstrating the scalability and effectiveness of its security model.

Commitment to Digital Sovereignty

Zscaler is committed to digital sovereignty and regulatory compliance, offering localized infrastructure and granular control over data storage and processing. This commitment ensures that organizations can meet regional regulatory requirements while maintaining robust security postures.

Future Outlook

As organizations continue to embrace digital transformation, Zscaler remains at the forefront of cloud security, providing innovative solutions that enable secure and efficient business operations in an increasingly digital and interconnected world.