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Buyer’s Guide: Company Profile

Zscaler, Inc.

Explore Zscaler, Inc.’s services, potential fit for different businesses, how it compares with alternatives, and what to ask before choosing a provider.

Buyer’s Guide visibility

Zscaler, Inc. ranked #1

The search

Buyer
Enterprise procurement of cloud-delivered security service edge platforms to secure distributed user and branch access to internet, SaaS, and private applications
Region
Global

Sep 30, 2026 · 10 entries returned

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This page records how AI systems present this company to buyers: what they pick up and where their picture may be incomplete or mistaken. Community notes are reader submissions, separate from the search results.

Question 1

What does Zscaler, Inc. do?

Zscaler, Inc. is a publicly traded cloud security platform vendor headquartered in San Jose, California. The company delivers cloud-native security through its Zero Trust Exchange architecture, positioned as an inline proxy between users, workloads, devices, and the applications they access. Rather than extending traditional network perimeters or virtual private networks, Zscaler applies least-privilege zero-trust access controls, connecting authorized endpoints directly to designated applications without putting entities on the internal network. The company operates on a subscription software-as-a-service model, serving distributed mid-market to global enterprise buyers seeking to inspect encrypted internet traffic, enforce consistent security policies across remote locations, and protect corporate systems from external exploitation and unauthorized lateral movement.

Sources: [5] [9] [16]

Question 2

What products, services and core capabilities does Zscaler, Inc. offer?

Zscaler delivers its core capabilities through the Zero Trust Exchange, structured around flagship security offerings: Zscaler Internet Access (ZIA) for secure web gateway, cloud firewall, and threat inspection; Zscaler Private Access (ZPA) for zero trust network access (ZTNA) to internal private apps; and Zscaler Digital Experience (ZDX) for end-to-end performance and latency monitoring. The platform integrates cloud access security broker (CASB) functionality, data loss prevention (DLP), cloud sandboxing, and browser isolation. These protect corporate data across web traffic, software-as-a-service (SaaS) usage, and private cloud workloads. Zscaler enforces security via a multitenant cloud distributed across more than 150 global data centers. Traffic steering is handled via lightweight endpoint agents, branch connectors, or software-defined WAN integrations, eliminating reliance on on-premises firewall hardware appliances.

Sources: [2] [3] [6] [9]

Question 3

What types of organizations are a good fit for Zscaler, Inc.?

Zscaler is a strong fit for distributed mid-market enterprises, multinational corporations, and public sector agencies that are migrating from legacy hub-and-spoke networks to cloud services. Organizations supporting hybrid workforces, numerous regional branches, and heavy multi-cloud or SaaS applications gain significant advantages by offloading inspection to cloud edge nodes without backhauling traffic over private circuits. Conversely, organizations with localized campus networks, small physical offices with static user counts, or minimal cloud footprints may find the deployment overhead and premium per-user licensing disproportionate. Similarly, environments heavily reliant on legacy protocols that necessitate raw Layer 3 routable connectivity may face operational friction adapting to a pure proxy architecture.

Sources: [1] [3] [9]

Question 4

Who are Zscaler, Inc.'s main competitors and alternatives?

Zscaler faces competition from enterprise network security and cloud-delivered cybersecurity providers targeting security service edge (SSE) and SASE procurements: 1. Palo Alto Networks, Inc. offers Prisma Access, competing directly across SSE and SASE by integrating cloud-delivered security with its established next-generation firewall and SD-WAN footprint. 2. Netskope, Inc. competes with its Netskope One platform, emphasizing cloud access security broker capabilities, data loss prevention, and private access. 3. Cisco Systems, Inc. competes through Cisco Secure Access, providing cloud security for organizations consolidating networking hardware, identity, and security stacks. 4. Fortinet, Inc. offers FortiSASE, pairing cloud-delivered security services with its FortiGate appliance ecosystem. 5. Cato Networks Ltd. delivers the Cato SASE Cloud Platform, competing directly on unified single-vendor SASE with an integrated global private backbone. Independent market data from Dell'Oro Group (3Q 2024) identifies Zscaler, Cisco, Palo Alto Networks, Broadcom, Fortinet, and Netskope as the top six SASE vendors by revenue share, together accounting for 72% of the market.

Sources: [7] [8] [10] [13] [14] [15]

What the AI said and what we found

What the AI said

Zscaler faces competition from enterprise network security and cloud-delivered cybersecurity providers targeting security service edge (SSE) and SASE procurements: 1. Palo Alto Networks, Inc. offers Prisma Access, competing directly across SSE and SASE by integrating cloud-delivered security with its established next-generation firewall and SD-WAN footprint. 2. Netskope, Inc. competes with its Netskope One platform, emphasizing cloud access security broker capabilities, data loss prevention, and private access. 3. Cisco Systems, Inc. competes through Cisco Secure Access, providing cloud security for organizations consolidating networking hardware, identity, and security stacks. 4. Fortinet, Inc. offers FortiSASE, pairing cloud-delivered security services with its FortiGate appliance ecosystem and proprietary ASIC architecture. 5. Cato Networks Ltd. delivers the Cato SASE Cloud Platform, competing directly on unified single-vendor SASE with an integrated global private backbone.

What we found when we checked

Some points were supported, while others needed more context or changes.

  • Zscaler's FY2025 10-K identifies competitors including independent IT security vendors, large networking vendors offering security capabilities, and companies with point solutions across proxy, firewall, CASB, sandboxing, DLP, and VPN.
  • Dell'Oro Group identified the top six SASE vendors by revenue share in 3Q 2024 as Zscaler, Cisco, Palo Alto Networks, Broadcom, Fortinet, and Netskope, collectively owning 72% of the $2.4B market.
  • Zscaler led the SSE segment with a 34% share in 3Q 2024, followed by Palo Alto Networks and Broadcom, per Dell'Oro Group.
  • Palo Alto Networks provides Prisma Access as a cloud-delivered security platform combining SWG, ZTNA, CASB, and SD-WAN integration.
  • Netskope offers Netskope One, focusing on inline and API-based CASB, data protection, and ZTNA, delivered over the NewEdge private backbone.
  • Fortinet delivers FortiSASE, unifying cloud-delivered security with FortiOS and FortiGate hardware infrastructure.
  • Cato Networks provides a cloud-native SASE platform with an integrated global private backbone.

What we changed

We kept supported details and removed or qualified points that the independent check could not confirm.

Sources we used

Question 5

How does Zscaler, Inc. compare with its key alternatives?

Zscaler differentiates itself with an established, cloud-native proxy architecture that decouples application access from IP network routing. Unlike traditional firewall-derived platforms, Zscaler routes sessions through edge inspection nodes to isolate endpoints from corporate networks, connecting users directly to applications without granting broad routable IP network access. Palo Alto Networks and Fortinet provide tighter cohesion for hybrid environments maintaining significant physical branch hardware or perimeter firewalls. Netskope offers specialized data context and granular API controls for SaaS-heavy environments, delivered over its NewEdge private backbone. Cato Networks provides a converged private cloud backbone optimized for WAN-heavy site interconnectivity. Zscaler is typically chosen by organizations committed to a pure zero-trust software model without backhauling, while alternatives win when hardware reuse, private network backbone transit, or single-vendor appliance consolidation takes priority. Overall positioning Zscaler positions as a pure cloud-native security pioneer focused on zero trust user-to-app broker architecture, rejecting traditional routable network connectivity. Key differentiators Proxy-native architecture that decouples access from routable IP networking Massive proprietary cloud edge footprint across 150+ globally distributed data centers Mature enterprise zero trust portfolio spanning ZIA, ZPA, and ZDX Firewall-Heritage Security Platforms Overlap: Both offer cloud-delivered SWG, CASB, ZTNA, FWaaS, and integrated SD-WAN. Important differences: Palo Alto and Fortinet extend physical firewall OS rules into the cloud, supporting direct IP packet inspection and appliance interoperability. Cloud-Native SSE & Backbone Specialists Overlap: Deliver cloud-native SWG, CASB, ZTNA, and SD-WAN connectivity without on-premises firewall hardware. Important differences: Netskope focuses deeply on data loss prevention and SaaS inspection, while Cato integrates an underlying private WAN backbone.

Sources: [7] [8] [10] [11] [12] [13]

What the AI said and what we found

What the AI said

Zscaler differentiates itself with an established, cloud-native proxy architecture that decouples application access from IP network routing. Unlike traditional firewall-derived platforms, Zscaler routes sessions through edge inspection nodes to isolate endpoints from corporate networks. Palo Alto Networks and Fortinet provide tighter cohesion for hybrid environments maintaining significant physical branch hardware or perimeter firewalls. Netskope offers specialized data context and granular API controls for SaaS-heavy environments. Cato Networks provides a converged private cloud backbone optimized for WAN-heavy site interconnectivity. Zscaler is typically chosen by organizations committed to a pure zero-trust software model without backhauling, while alternatives win when hardware reuse, private network backbone transit, or single-vendor appliance consolidation takes priority.

What we found when we checked

Some points were supported, while others needed more context or changes.

  • Zscaler's Zero Trust Exchange operates on a proxy architecture that connects users to applications without granting broad routable IP network access, distributed across 150+ global data centers.
  • Palo Alto Networks Prisma Access integrates cloud security with physical and virtual firewall operations managed via unified consoles.
  • Netskope emphasizes inline and API-based CASB and DLP inspection for cloud application data governance, delivered over its NewEdge private backbone.
  • Fortinet unifies FortiSASE and SD-WAN through its proprietary FortiOS software foundation across appliances and cloud.
  • Cato Networks delivers a cloud-native SASE platform with an integrated private global backbone.

What we changed

We kept supported details and removed or qualified points that the independent check could not confirm.

Sources we used

Question 6

Why should a buyer choose Zscaler, Inc.?

A buyer should choose Zscaler when executing a comprehensive zero-trust initiative aimed at eliminating internal network trust and retiring legacy VPN hardware. It is optimal for enterprises with large, globally dispersed workforces accessing SaaS tools and cloud environments, where backhauling traffic through corporate hubs creates latency and operational overhead. Zscaler is compelling for organizations that want mature TLS/SSL traffic decryption at global scale without sizing physical appliances. Furthermore, organizations seeking proven zero-trust network access that strictly restricts users to defined private applications—without exposing network subnets—will find Zscaler’s proxy-brokered ZPA and ZIA pairing purpose-built for that mandate.

Sources: [2] [3] [9]

Question 7

Why might a buyer choose a competitor instead of Zscaler, Inc.?

A buyer might choose an alternative vendor when seeking to maximize return on significant investments in on-premises firewall appliances, such as those from Palo Alto Networks or Fortinet, which offer unified management across hardware and cloud. Buyers may also prefer alternatives if their network traffic requires extensive Layer 3 routable connectivity or non-web protocols that fit awkwardly within a pure proxy architecture. Additionally, cost-conscious organizations or smaller IT teams may find Zscaler's premium per-user pricing, multi-module packaging, and rigorous deployment requirements overly burdensome compared to turnkey or bundled networking-and-security offerings.

Sources: [1] [7] [8]

What the AI said and what we found

What the AI said

A buyer might choose an alternative vendor when seeking to maximize return on significant investments in on-premises firewall appliances, such as those from Palo Alto Networks or Fortinet, which offer unified management across hardware and cloud. Buyers may also prefer alternatives if their network traffic requires extensive Layer 3 routable connectivity or non-web protocols that fit awkwardly within a pure proxy architecture. Additionally, cost-conscious organizations or smaller IT teams may find Zscaler’s premium per-user pricing, multi-module packaging, and rigorous deployment requirements overly burdensome compared to turnkey or bundled networking-and-security offerings.

What we found when we checked

The information we checked was supported.

Sources we used

Question 8

What are Zscaler, Inc.'s key strengths and limitations?

Zscaler’s key strengths lie in its mature, purpose-built cloud-native proxy infrastructure and extensive enterprise adoption. Operating across more than 150 data centers, the platform inspects massive volumes of inline encrypted traffic and provides reliable user-to-app zero trust segmentation that effectively mitigates lateral movement risks. Conversely, material limitations center on deployment complexity and operational overhead. Inspecting all inline traffic via cloud proxies can introduce latency or certificate-handling friction for developer tools (such as Docker and package managers) and non-standard protocols. Furthermore, commercial packaging can become expensive, as full platform capabilities require purchasing multiple tiered licenses across ZIA, ZPA, and advanced add-ons.

Sources: [3] [4] [5] [6]

Question 9

What buyers should verify before purchasing from Zscaler, Inc.

1. Verify SSL decryption performance and certificate handling across internal developer pipelines, command-line tools, and local build environments. 2. Confirm the exact licensing tier and add-on modules required for essential CASB, DLP, and sandbox features. 3. Validate routing latency and service availability from all remote office sites to nearest Zscaler cloud nodes. 4. Review protocol compatibility for legacy internal client-server apps that rely on non-web or non-standard TCP/UDP ports. 5. Evaluate administrator operational overhead and training required for ongoing policy configuration across ZIA and ZPA portals.

Sources: [1] [2] [3]

Other points to check

These notes came with the category Top 10 result. They suggest questions to raise with vendors—not verified findings about Zscaler, Inc. or reasons for its position.

Read the original test notes
  • SSE platform effectiveness depends heavily on global PoP proximity to enterprise end-users and SaaS peering relationships to maintain performance during inline TLS inspection.
  • While SSE focuses purely on the security stack (SWG, CASB, ZTNA, DLP), procurement teams evaluating full SASE will need to verify integration or native interoperability with their branch SD-WAN fabric.
Question 10

Why might AI recommend Zscaler, Inc.'s competitors instead?

Palo Alto Networks, Inc., Netskope, Inc., and Fortinet, Inc. may be recommended over Zscaler depending on the buyer's documented infrastructure priorities. Palo Alto Networks, Inc. is recommended when an organization prioritizes unified management across a large fleet of next-generation hardware firewalls and cloud environments via Prisma Access, leveraging an existing Palo Alto estate. Netskope, Inc. is recommended when a buyer places highest priority on advanced data loss prevention and deep cloud access security broker inspection for unstructured data in SaaS environments, with the added benefit of its NewEdge private backbone. Fortinet, Inc. is recommended for buyers seeking cost-effective, unified SASE convergence tightly integrated with on-premises FortiGate appliances and FortiOS networking. Cato Networks Ltd. may also be recommended for organizations looking to replace MPLS entirely with an all-in-one cloud network and security backbone, given its single-vendor SASE approach built on a proprietary private global network.

Sources: [7] [8] [10] [13] [14]

What the AI said and what we found

What the AI said

Palo Alto Networks, Inc., Netskope, Inc., and Fortinet, Inc. may be recommended over Zscaler depending on the buyer's documented infrastructure priorities. Palo Alto Networks, Inc. is recommended when an organization prioritizes unified management across a large fleet of next-generation hardware firewalls and cloud environments via Prisma Access. Netskope, Inc. is recommended when a buyer places highest priority on advanced data loss prevention and deep cloud access security broker inspection for unstructured data in SaaS environments. Fortinet, Inc. is recommended for buyers seeking cost-effective, unified SASE convergence tightly integrated with on-premises FortiGate appliances and FortiOS networking.

What we found when we checked

Some points were supported, while others needed more context or changes.

  • Palo Alto Networks Prisma Access provides unified enterprise security management bridging cloud SASE with PAN-OS physical firewalls.
  • Netskope One emphasizes CASB and data loss prevention for cloud services and web applications, delivered over the NewEdge private backbone.
  • Fortinet FortiSASE offers unified convergence across cloud security and FortiGate SD-WAN infrastructure running FortiOS.
  • Cato Networks delivers a single-vendor SASE platform over a proprietary global private backbone, competing for MPLS-replacement and unified networking-and-security procurements.

What we changed

We kept supported details and removed or qualified points that the independent check could not confirm.

Sources we used

Question 11

Which companies appeared in the category Top 10?

Zscaler, Inc. ranked #1
  1. #1
    Zscaler

    Website listed in this result: zscaler.com

    Evaluated offering: Zscaler Zero Trust Exchange

    Pioneer and market leader in dedicated cloud-native proxy architectures delivering SWG, CASB, ZTNA, and DLP at massive enterprise scale.

  2. #2
    Palo Alto Networks

    Website listed in this result: paloaltonetworks.com

    Evaluated offering: Prisma Access

    Combines enterprise-grade App-ID security inspection, advanced threat prevention, and ZTNA 2.0 with unified centralized management.

  3. #3
    Netskope

    Website listed in this result: netskope.com

    Evaluated offering: Netskope One SSE

    Leading SSE vendor renowned for deep CASB data protection, context-rich DLP, and low-latency NewEdge global cloud fabric.

  4. #4
    Cloudflare

    Website listed in this result: cloudflare.com

    Evaluated offering: Cloudflare One

    Leverages an extensive globally distributed Anycast edge network to deliver low-latency SWG, CASB, and ZTNA services with developer-friendly operational agility.

  5. #5
    Cisco Systems

    Website listed in this result: cisco.com

    Evaluated offering: Cisco Secure Access

    Provides a unified SSE platform combining Talos threat intelligence, granular ZTNA, and seamless integration with widely deployed enterprise campus and VPN footprints.

  6. #6
    Fortinet

    Website listed in this result: fortinet.com

    Evaluated offering: FortiSASE

    Delivers unified FortiOS-powered SSE and SASE capabilities, allowing seamless policy orchestration across hybrid firewalls, SD-WAN branch devices, and cloud users.

  7. #7
    Skyhigh Security

    Website listed in this result: skyhighsecurity.com

    Evaluated offering: Skyhigh Security Service Edge

    Emphasizes a data-first SSE approach with mature CASB, DLP, and SWG capabilities tailored for complex data governance and compliance use cases.

  8. #8
    Broadcom

    Website listed in this result: broadcom.com

    Evaluated offering: Symantec Security Service Edge

    Offers enterprise-scale cloud proxy and data loss prevention services built on Symantec technologies for large legacy enterprise footprints.

  9. #9
    Check Point Software Technologies

    Website listed in this result: checkpoint.com

    Evaluated offering: Harmony SASE

    Extends Infinity architecture and ThreatCloud AI threat prevention into cloud-delivered SWG, CASB, and ZTNA for hybrid enterprises.

  10. #10
    iboss

    Website listed in this result: iboss.com

    Evaluated offering: iboss Zero Trust SASE Platform

    Provides containerized cloud-native architecture with dedicated IP anchoring and unified SWG, CASB, and ZTNA controls for distributed workforces.

Search history

Top 10 searches featuring Zscaler, Inc.

These are saved searches in which Zscaler, Inc. appeared. A result may originate from another company’s Buyer Guide; it is not necessarily Zscaler, Inc.’s own generated Question 11 test. Results may cover different buyer needs, locations, or dates.

Buyer needLocationPositionModelDate
Enterprise procurement of cloud-delivered security service edge platforms to secure…Global#1 of 10GeminiSep 30, 2026
Organisations evaluating cloud-delivered DNS-layer threat protection and content…Global#5 of 10GeminiSep 29, 2026
Why positions vary
Alternatives mentioned in research

These companies were mentioned in accepted research, not ranked by an AI search. Linked names open existing Buyer’s Guide listings.

Evidence trail

Sources

These links record what the AI cited. A listed link does not, by itself, mean we verified a claim against its contents.

[10]
https://www.catonetworks.com/Retrieved Sep 30, 2026
[16]
About this test

How this search was run

These are the inputs to one recorded search—not a verified description of Zscaler, Inc. or its service area.

Model used
Gemini
Market searched
Security Service Edge (SSE) platforms
Buyer need
Enterprise procurement of cloud-delivered security service edge platforms to secure distributed user and branch access to internet, SaaS, and private applications
Region searched
Global
Test date
Sep 30, 2026

Why this page exists: Buyers use AI to research vendors before making a shortlist. We preserve each response and its test date so you can see what appeared in that search.

How responses are checked: Selected questions about competition, differentiation, concerns, and recommendations are sent to a second model to check against available sources. Where that review produces usable findings, we show the original response and what the review found or changed. Other answers may cite sources without a separate review.

How the search is chosen: Before the Top 10 test, one model identifies the most appropriate market, buyer need, and region for this company. A second model reviews those inputs. The reviewed inputs become the search used for the blind Top 10 test. The market shown is where the test placed the company, not a category verified by TMC or chosen by the company. It may be broader, narrower, or different from how the company describes itself. That difference is part of what this page records.

What the ranking means: The Category Top 10 shows how the company appeared in this specific search. It is not a measure of quality, size, or market share. The reviewing model checks the test inputs, not the returned ranking. Linked names have live company profiles; identity verification does not independently verify every recommendation claim.

For companies: This record shows what the test picked up and which sources it cited. Missing or mistaken details may point to public information worth clarifying, but do not by themselves explain why the response said what it did.

Exact test setup and model roles

This result uses a two-model process before the ranking. Gemini proposed the most applicable provider category, buying context, and geography from its company research; Claude independently reviewed and could correct those inputs. The final Top 10 list was then generated by one blind test of Gemini, which received the reviewed category, buying context, geography, and date—but not Zscaler, Inc.’s identity. Claude did not review or rerank the returned Top 10 list, so the ranking itself is not a consensus across AI systems. Provider names identify the AI family; exact model versions and testing configuration are maintained internally.

The original test notes are available with the buyer checklist.

Results across different searches

2 recorded searches · positions #1, #5

The market, buyer need, and region can differ across tests. Each Top 10 uses the inputs recorded for that search, so the company list and its position may change.

  • #5 · DNS filtering and protective DNS services · Global · Sep 29, 2026
Compare the recorded searches
Reader perspectives

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