Z

Zscaler

ZS

Application

Cloud-native Zero Trust security platform that inspects and blocks threats in enterprise traffic in real time, using AI to score risk and detect anomalous behaviour across users, devices and workloads.

Total funding—

Market cap$30.5B

Employees8,700

Founded2007

HeadquartersSan Jose, USA

StatusPublic

Products

Selected offerings — the AI products recorded here, not the vendor's full catalogue.

• Zero Trust Exchange Platform

  Cloud-native security platform that inspects and enforces policy on every connection between users, devices, workloads and AI agents, rather than trusting anything on a corporate network.

• Zscaler AI Guard API service

  Real-time guardrails for LLM traffic that inspect prompts and responses inline to block prompt injection, jailbreaks, sensitive-data leakage and toxic or off-topic output, deployed either as a proxy or as an API-based Detection as a Service.

• Zscaler AI Red Teaming Developer tool

  Automated adversarial testing for AI applications and agents that runs simulated attacks using 25+ predefined and custom probes across text, image, voice and document inputs, scoring results for security, safety, hallucination and business alignment against MITRE ATLAS, NIST AI RMF and the OWASP LLM Top 10.

Inside Zero Trust Exchange

• Zscaler Breach Predictor Application Included with the parent

  Runs AI models over the security data flowing through the Zero Trust Exchange, using attack graphs, user risk scoring and threat intelligence to score the probability of a breach, forecast an attacker's next tactics, and recommend policy changes before the attack completes.

Inside Zscaler

• Zscaler Cloud Sandbox API service

  Inline, AI-powered sandbox that analyzes unknown files in real time to block zero-day and file-based malware before it reaches endpoints, using AI/ML models trained on 600M+ samples.

• Zscaler Digital Experience (ZDX) Application

  AI-driven detection and diagnosis of digital-experience issues across the network and application delivery path.

Inside Zscaler Data Security

• Zscaler AI Asset Management (AI-SPM) Application Paid add-on to the parent

  AI security posture management that auto-discovers and classifies AI models, agents and services across Azure AI Foundry, Amazon Bedrock, Google Vertex AI and unmanaged providers, correlates the sensitive data connected to them, and maps findings to frameworks including NIST AI RMF 600-1 and the EU AI Act.

• Secure Access to AI Application Paid add-on to the parent

  Governance layer for employee use of generative AI that discovers shadow AI applications, applies allow, block or coach policies per user, and monitors prompts and responses against more than 100 data loss prevention dictionaries to stop sensitive data leaving through AI tools.

Closest alternatives 2

PAPalo Alto NetworksPublic · $302.9B4 of 4 capabilitiesShared product typeLarger scaleNamed in filingDetect and respond to security threatsCompareFFortinetPublic · $124.8B4 of 4 capabilitiesShared product typeLarger scaleNamed in filingDetect and respond to security threatsCompare

Similar products 59

How this list is ranked ↗

SSentinelOnePublic · $7.5BSecure Access to AI and Prompt Security do comparable work on data security and guardrails and safety; both also serve buyers who need to detect and respond to security threats; smaller scale (public).3 of 4 capabilitiesShared product typeSmaller scaleCompareVAVectra AIPrivate · $1.2BZscaler Breach Predictor and Identity Threat Detection and Response (ITDR) do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareDDarktracePrivate · $5.3BZscaler Breach Predictor and Darktrace / Adaptive Human Defense do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareRCRed CanaryPrivateZscaler Breach Predictor and Red Canary Managed Phishing Response do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; Red Canary's scale not recorded.1 of 4 capabilitiesShared product typeCompareASAbnormal SecurityPrivate · $5.1BZscaler Breach Predictor and AI Governance do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareHHiddenLayerPrivate · $50M raisedZero Trust Exchange and HiddenLayer AI Security Platform do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; similar scale (private).4 of 4 capabilitiesShared product typeCompareDDoppelPrivate · $615MZscaler Breach Predictor and Doppel Security Awareness Training do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareCCyeraPrivate · $12BZscaler AI Asset Management (AI-SPM) and Omni DLP do comparable work on data security; both also serve buyers who need to detect and respond to security threats; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareCPCheck Point Software TechnologiesPublicZero Trust Exchange and ThreatCloud AI do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; Check Point Software Technologies's scale not recorded.1 of 4 capabilitiesShared product typeCompareWWizAcquiredZero Trust Exchange and Wiz AI-SPM do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; Wiz is acquired, with no independent scale.2 of 4 capabilitiesShared product typeCompareCCrowdStrikePublic · $192.6BZero Trust Exchange and CrowdStrike Falcon platform do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).1 of 4 capabilitiesShared product typeLarger scaleCompareTTorqPrivate · $1.2BZscaler Breach Predictor and Torq Auto Triage do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; smaller scale (private); ships AI agent rather than the same layer.1 of 4 capabilitiesDifferent layerSmaller scaleCompareMFMind FoundryPrivate · $44M raisedZscaler Breach Predictor and Nightingale do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; similar scale (private).1 of 4 capabilitiesShared product typeCompareGGlean (Glean Technologies)Private · $7.2BSecure Access to AI and Glean Protect do comparable work on data security and guardrails and safety; both also serve buyers who need to detect and respond to security threats; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareIIBMPublic · $216.6BZscaler AI Asset Management (AI-SPM) and IBM Guardium AI Security do comparable work on data security; both also serve buyers who need to detect and respond to security threats; larger scale (public).4 of 4 capabilitiesShared product typeLarger scaleCompareVVercelPrivate · $9.3BZscaler Breach Predictor and Vercel BotID do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareAAccenturePublic · $111BZscaler Breach Predictor and Cyber.AI do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).1 of 4 capabilitiesShared product typeLarger scaleCompareDDocusignPublic · $12.7BZscaler AI Asset Management (AI-SPM) and Docusign Identify do comparable work on data security; both also serve buyers who need to detect and respond to security threats; same layer and the same scale band (mid-cap).1 of 4 capabilitiesShared product typeSame scale bandCompareMMicrosoftPublic · $3.7TZscaler AI Asset Management (AI-SPM) and Microsoft Security Copilot do comparable work on data security; both also serve buyers who need to detect and respond to security threats; larger scale (public).4 of 4 capabilitiesShared product typeLarger scaleCompareRAResemble AIPrivateZscaler Breach Predictor and Resemble Meetings do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; Resemble AI's scale not recorded.2 of 4 capabilitiesShared product typeCompareEElasticPublic · $10.2BZscaler Breach Predictor and Elastic Security do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; same layer and the same scale band (mid-cap).2 of 4 capabilitiesShared product typeSame scale bandCompareNNiCEPublic · $6.5BZero Trust Exchange and Xceed AI FRAML do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; smaller scale (public).2 of 4 capabilitiesShared product typeSmaller scaleCompareSSplunkAcquiredZscaler AI Asset Management (AI-SPM) and Splunk Enterprise Security do comparable work on data security; both also serve buyers who need to detect and respond to security threats; Splunk is acquired, with no independent scale.3 of 4 capabilitiesShared product typeCompareSServiceNowPublic · $130.1BSecure Access to AI and AI Control Tower do comparable work on data security and guardrails and safety; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareWWorkdayPublic · $49.3BSecure Access to AI and Agent System of Record do comparable work on data security and guardrails and safety; same layer and the same scale band (mid-cap).3 of 4 capabilitiesShared product typeSame scale bandCompareDDataikuPrivate · $3.7BZscaler AI Red Teaming and Dataiku LLM Mesh do comparable work on guardrails and safety; smaller scale (private).3 of 4 capabilitiesShared product typeSmaller scaleCompareSSAPPublic · $256.3BZscaler AI Red Teaming and SAP AI Agent Hub do comparable work on guardrails and safety; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareCCiscoPublic · $433.3BSecure Access to AI and Cisco AI Defense do comparable work on data security and guardrails and safety; both also serve buyers who need to detect and respond to security threats; larger scale (public).4 of 4 capabilitiesShared product typeLarger scaleCompareHHelsingPrivate · $18BZscaler Breach Predictor and Cirra do comparable work on threat detection and response; similar scale (private).1 of 4 capabilitiesShared product typeCompareCCodeRabbitPrivate · $1.5BZscaler AI Red Teaming and CodeRabbit Security do comparable work on guardrails and safety; both also serve buyers who need to detect and respond to security threats; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareZZapierPrivate · $5BSecure Access to AI and AI Guardrails by Zapier do comparable work on data security and guardrails and safety; both also serve buyers who need to detect and respond to security threats; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareJJasperPrivateSecure Access to AI and Jasper Brand IQ do comparable work on guardrails and safety; Jasper's scale not recorded.1 of 4 capabilitiesShared product typeCompareDDatadogPublic · $84.9BZscaler AI Red Teaming and Agent Observability do comparable work on guardrails and safety; same layer and the same scale band (mid-cap).3 of 4 capabilitiesShared product typeSame scale bandComparePPalantirPublic · $426.5BZscaler AI Asset Management (AI-SPM) and Palantir Apollo do comparable work on data security; larger scale (public).1 of 4 capabilitiesShared product typeLarger scaleCompareOOpenAIPrivate · $852BZscaler AI Guard and OpenAI Daybreak do comparable work on data security and threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (private).3 of 4 capabilitiesShared product typeLarger scaleCompareAAnthropicPrivate · $965BZscaler Breach Predictor and Claude Security do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (private).2 of 4 capabilitiesShared product typeLarger scaleCompareITInvisible TechnologiesPrivate · $144M raisedZscaler AI Red Teaming and Synapse do comparable work on guardrails and safety; similar scale (private).2 of 4 capabilitiesShared product typeCompareKKrispPrivateZscaler AI Asset Management (AI-SPM) and Krisp Voice Security both serve buyers who need to detect and respond to security threats; Krisp's scale not recorded.Shared product typeCompareFAFiddler AIPrivate · $100M raisedOverlaps on evaluation and observability and guardrails and safety; similar scale (private).2 of 4 capabilitiesShared product typeCompareAAArthur AIPrivate · $62.7M raisedOverlaps on evaluation and observability and guardrails and safety; similar scale (private).2 of 4 capabilitiesShared product typeCompareUUniphorePrivate · $2.5BZscaler AI Asset Management (AI-SPM) and Communication Recording Agent do comparable work on data security; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareBBroadcomPublic · $1.7TSecure Access to AI and AgentMinder do comparable work on data security and guardrails and safety; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareHCHuawei CloudPrivateZscaler AI Guard and Content Moderation do comparable work on guardrails and safety; both also serve buyers who need to detect and respond to security threats; Huawei Cloud's scale not recorded.1 of 4 capabilitiesShared product typeCompareNNeo4jPrivate · $2BZscaler Breach Predictor and GraphAware Hume do comparable work on threat detection and response; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareLLivePersonAcquiredOverlaps on evaluation and observability; LivePerson is acquired, with no independent scale.1 of 4 capabilitiesShared product typeCompareCCoreWeavePublic · $48.5BZscaler AI Asset Management (AI-SPM) and Mission Control do comparable work on data security; same layer and the same scale band (mid-cap).2 of 4 capabilitiesShared product typeSame scale bandCompareFForethoughtPrivate · $115M raisedOverlaps on evaluation and observability; similar scale (private).1 of 4 capabilitiesShared product typeCompareDDecagonPrivate · $4.5BOverlaps on evaluation and observability; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareQQodoPrivate · $50M raisedZscaler AI Red Teaming and Qodo both serve buyers who need to detect and respond to security threats; similar scale (private).Shared product typeCompareHHaptikAcquired ($112M deal)Overlaps on evaluation and observability; Haptik is acquired, with no independent scale.1 of 4 capabilitiesShared product typeCompareHHarveyPrivate · $11BOverlaps on evaluation and observability; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareSSamaPrivateZscaler AI Red Teaming and Sama GenAI do comparable work on guardrails and safety; Sama's scale not recorded.2 of 4 capabilitiesShared product typeCompareSSierraPrivate · $15.8BOverlaps on evaluation and observability; similar scale (private).1 of 4 capabilitiesShared product typeCompareVSVerint SystemsAcquiredOverlaps on evaluation and observability; Verint Systems is acquired, with no independent scale.1 of 4 capabilitiesShared product typeComparePPresightPublic · $5.6BZscaler AI Asset Management (AI-SPM) and Presight Financial Solutions both serve buyers who need to detect and respond to security threats; smaller scale (public).Shared product typeSmaller scaleCompareTTolokaPrivateZscaler AI Red Teaming and Toloka Platform do comparable work on guardrails and safety; Toloka's scale not recorded.2 of 4 capabilitiesShared product typeCompareTTuringPrivate · $2.2BZscaler AI Red Teaming and Turing Intelligence Platform do comparable work on guardrails and safety; smaller scale (private); ships agent platform and data service rather than the same layer.2 of 4 capabilitiesDifferent layerSmaller scaleCompareMMercorPrivate · $20BOverlaps on evaluation and observability; similar scale (private); ships data service rather than the same layer.1 of 4 capabilitiesDifferent layerCompareCCore42PrivateZscaler AI Asset Management (AI-SPM) and Core42 Sovereign Public Cloud do comparable work on data security; Core42's scale not recorded.1 of 4 capabilitiesShared product typeCompare

Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.

Sources

Market cap

Third-party database · 31 Aug 2026

Market capitalisation $30.53B, share price $188.80, page stamped "Aug 31, 2026, 1:30 PM EDT - Market open". Same source and pattern as every other public company's market cap in this dataset.

Employees

Regulatory filing · 31 Jul 2026

Same FY2026 10-K: "As of July 31, 2026, we had over 8,700 employees in locations around the world." Recorded as the company's own stated floor ("over 8,700"), same convention as the prior FY2025 figure it supersedes.

Founded

Wikipedia · 31 Aug 2026

Infobox "Founded" field reads "2007; 19 years ago (2007)".

Revenue (TTM)

Regulatory filing · 31 Jul 2026

Zscaler, Inc. Form 10-K for the fiscal year ended 2026-07-31 (filed 2026-09-03): "revenue increasing from $2,167.8 million in fiscal 2024 to $2,673.1 million in fiscal 2025 to $3,352.5 million in fiscal 2026." Supersedes the FY2025 figure already on record.

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