Top Security Companies by Revenue 2026

Data platform for security and observability acquired by Cisco for $28B in March 2024. Used by 90 of Fortune 100; 7,500+ enterprise customers globally; flagship SIEM and Splunk SOAR power enterprise security operations centers.

Microsoft's cloud-native SIEM/SOAR platform with AI-powered threat detection and Copilot integration; part of Microsoft's $20B+ security business competing with Splunk/Cisco and IBM QRadar.

NASDAQ-listed (OKTA) independent identity platform with 19K+ customers at $2.26B revenue; Workforce Identity Cloud and Auth0 competing with Microsoft Entra for enterprise and developer IAM.

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.

AI-powered endpoint security with $800M revenue; autonomous threat response and rollback on the Singularity Platform competing with CrowdStrike after CrowdStrike's 2024 global outage.

$1.001B revenue 2024 (record); Q2 2025 $328M (+46% YoY); $1.274B ARR Q2 2025 (+47% YoY); 10,000+ clients; $221M free cash flow 2024 (22% margin); acquired Zilla adding 125 customers; IAM market $15.93B 2022 to $41.52B 2030

Leading compliance automation platform with $1.6B valuation; continuous control monitoring for SOC 2 and ISO 27001 serving thousands of SaaS companies competing with Drata and Sprinto.

Managed SOC platform with $4.3B valuation; 24/7 Concierge Security Team monitoring thousands of mid-market clients competing with CrowdStrike Falcon Complete and Rapid7 MDR.

Cloud security platform with behavioral anomaly detection for multi-cloud environments; acquired by Fortinet (FTNT) in October 2024 after $1.9B raised competing with Wiz and Palo Alto Prisma Cloud.

Santa Clara SSE/SASE pioneer (NASDAQ: NTSK, IPO Sep 2025 at $7.26B) with NewEdge 70+ data center network; $1.44B pre-IPO funding serving 2,400+ customers (30+ Fortune 100) competing with Zscaler for enterprise cloud security.

Consumer cybersecurity brand providing antivirus, VPN, and identity protection; McAfee+ emphasizes dark web monitoring and identity theft recovery services.

Consumer cybersecurity brand under Gen Digital with 500M users; Norton 360, LifeLock identity theft protection, and Avast portfolio serving global device and identity security.

Microsoft's enterprise endpoint protection platform included in Microsoft 365 E5; benefiting from CrowdStrike's 2024 outage while AI-powered Copilot for Security integrates with Microsoft's $20B+ security business.

Gen Digital (NASDAQ: GEN) consumer cybersecurity brand with free antivirus for hundreds of millions of users; Avast acquisition combined with Norton forming Gen Digital competing with Microsoft Defender and Bitdefender.

Gen Digital (NASDAQ: GEN) consumer cybersecurity brand with 435M+ users at $3.8B revenue after $8.6B Norton merger; freemium model competing with Bitdefender and McAfee for consumer antivirus and privacy protection.

DC AI email security with ASA/ADÉ autonomous agents driving 100% ARR growth H1 2025; $240M+ total ($150M Georgian Series C Nov 2025) serving Spotify/Snowflake/Anduril with detection-as-code competing with Abnormal Security for enterprise email thr...

Israel YC W20 open source vulnerability patching without version upgrades or breaking changes; $20M from MORE Investment House/SBI/PayPal Alumni Fund fixing CVEs for Linux/containers/dependencies competing with Snyk and Mend for production-safe se...

Forward Networks creates mathematical digital twin models of enterprise networks across on-premises, cloud, and hybrid environments; enables network verification, security compliance queries, and blast-radius analysis; raised $50M Series C in 2022;

SF YC S23 agentic identity platform delivering Okta-level SSO for any app without SAML or SSO tax; $3.5M seed competing with Okta and Microsoft Entra for enterprise IAM with AI-agent authentication for 100% of applications including non-SAML tools.

Red Canary is the leading MDR provider, named a Forrester Wave Leader in Q1 2025 with highest scores in 10 criteria; acquired by Zscaler in 2025 for AI-driven threat response integration; 500% increase in cloud identity attacks detected in H1 2025.

Cloud-native Secure Enterprise Browser platform eliminating zero-hour phishing and browser-based malware; won CyberSecurity Breakthrough Enterprise Security Solution of the Year 2025; 130% surge in zero-hour phishing attacks in 2024 drives demand.

SpyCloud is a cybercrime analytics platform protecting enterprises from ransomware, account takeover, and identity threats using data recaptured from criminal underground sources; $198M raised including a $110M growth round from Riverwood Capital.

Bugcrowd is a crowdsourced cybersecurity platform connecting organizations with 500K+ security researchers for bug bounty, pen testing, and vulnerability disclosure programs; raised $102M in 2024; acquired AI-security firm Mayhem Security in 2025.

Judy Security provides AI-powered enterprise-grade cybersecurity for small and medium-sized businesses; founded 2019 by Raffaele Mautone; delivers threat detection, endpoint protection, and managed security services at SMB-accessible price points;

AppViewX provides the AVX ONE platform for automated certificate lifecycle management (CLM) and PKI infrastructure; raised $20M Series B in 2022; helps enterprises manage millions of machine identities across multi-cloud and hybrid environments;

US DevSecOps AI writing code fixes for Snyk/Semgrep vulnerabilities at 80% faster remediation and 30% less false positives; YC S23 $2.6M Shorooq/Jawed Karim seed Jan 2025 IDC Innovator competing with Snyk and Mobb.ai for AppSec auto-remediation.

Cyber risk remediation platform orchestrating vulnerability fixes across cloud, application, and infrastructure security. Aggregates findings from CSPM, SAST, SCA, and container scanners; prioritizes by risk to accelerate enterprise remediation.

Nagomi Security emerged from stealth in April 2024 with $30M in funding led by TCV with CrowdStrike and Okta as investors; founded 2023 in New York; platform helps security teams reduce threat exposure by optimizing their existing security tool.

Virsec provides Zero Trust Runtime Defense for server workloads via a default-deny, allow-on-trust model that neutralizes ransomware and zero-day attacks in milliseconds without patching; raised $137M from 19 investors; 85 employees as of 2026.

SF YC S23 AI trust and safety automation for Patreon, Eventbrite, Upwork, Character.ai; $27.5M total ($27M First Round/Ribbit Series A Apr 2025) replacing manual risk reviews with AI agents for $10B+ marketplace and $100B+ payments platforms.

API security testing platform using dynamic analysis to automatically discover and test REST and GraphQL APIs. Paris-based; distinctive GraphQL scanner covers introspection abuse, nested query attacks, and auth bypass patterns at CI/CD speed.

Netwrix is a cybersecurity software company focused on data security and IT compliance; serves 13,500+ organizations across 100+ countries; acquired Stealthbits Technologies in 2021 and Strongpoint in 2022; backed by TA Associates since 2020.

Cyberhaven is an AI data security company with a $1B valuation after a $100M Series D in April 2025; its Large Lineage Model (LLiM) traces data movement across the enterprise to detect insider threats, data exfiltration, and AI tool exposure;

DataVisor uses unsupervised ML to detect fraud and financial crime without labeled training data; $1.26B valuation; raised $100M+ from NEA and Sequoia; protects banks, fintechs, and e-commerce platforms from emerging fraud patterns globally.

SF YC a16z-backed government data request compliance platform at $6M revenue 2024 with 39 employees; $33.3M total ($10M a16z seed Nov 2023) serving 15K+ agencies in 120+ countries automating subpoena and law enforcement compliance workflows.

Vectra AI provides AI-driven network detection and response (NDR) and attack signal intelligence across hybrid cloud environments; raised $350M+ in total funding including a $130M Series E; covers AWS, Azure, M365, and on-premises networks;

SF OT/IoT cybersecurity Gartner 2025 CPS Leader acquired by Mitsubishi Electric for $883M Sep 2025 (largest OT security deal); 115M+ assets at 12,000+ installations competing with Claroty and Dragos for critical infrastructure ICS security.

Xage Security provides zero-trust cybersecurity for critical infrastructure, OT/ICS, and defense environments; enforces identity-based access control across IT, OT, and cloud; protects energy, manufacturing, defense, and utilities sectors;

Blackpoint Cyber is a 24/7 MDR platform built on proprietary LAN-based threat detection technology; serves MSPs and mid-market enterprises; raised $190M Series C in 2023 at over $1B valuation; recognized in Gartner Market Guides for MDR.

Elisity is a San Jose cybersecurity startup providing AI-driven Zero Trust network access and identity-based microsegmentation for hybrid enterprise environments; eliminates need for network re-architecture; raised $31M Series B in 2024;

SecurityScorecard provides continuous cybersecurity ratings for 12M+ organizations; raised $290M+ at $1.1B valuation; used by 25,000+ companies to assess vendor risk; its A-F grades are the standard for third-party cyber risk management.

AI endpoint security running ML models locally on devices; $40M raised (March 2026); reduces alerts 90%. Tel Aviv-based; founded 2024; Fortune 500 clients; edge-native architecture eliminates cloud latency for real-time threat response.

Quantstamp is the leading smart contract security firm, having audited $200B+ in digital assets across Ethereum, Solana, and other chains; clients include Ethereum Foundation, OpenSea, and MakerDAO; Y Combinator-backed with $28M raised.

Seoul enterprise Zero Trust data access governance at 130+ enterprises including Kakao/Shinhan/Toss/HYBE/Yanolja; $30M+ total with Japan strategic investment 2024 covering databases/servers/K8s/AI infrastructure competing with CyberArk.

Healthcare-specialized cloud security platform (CSPM, MDR, compliance) protecting PHI across AWS, Azure, and GCP; CyberHealth platform covers HIPAA, HITRUST, and FedRAMP; $80M raised; serves providers, payers, and medical device makers.

SF Sequoia India-backed unified DevSecOps platform (SAST/SCA/coverage/formatting) trusted by 6,000+ companies; launched Globstar open-source toolkit and 3 AI agents in 2025 for AI-generated code security competing with Snyk and Semgrep.

Cyber asset management platform with $700M+ raised at $2.6B valuation; acquired Cynerio (IoT/OT healthcare security) for $180M in Jul 2025; named Fortune/Lightspeed Cyber 60 2025-2026; aggregates 900+ data sources for asset visibility.