Best Cybersecurity Companies in San Jose, United States
The 141 best Cybersecurity companies in San Jose, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Lacework.
Our analysis of 71 Cybersecurity companies
$12.5b in tracked funding; 100% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Cybersecurity companies in San Jose
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Lacework 🦄 AI powered cloud security posture management solution | $1.9B | 52 mo ago | 1,174 | 2015 | Mike Speiser Co-Founder | 134 patents Cloud workload security and compliance monitoring using AI-driven threat intelligence platforms. | — |
| 2 | Vectra AI 🦄 Provider of AI-driven platform for cyberattack detection and response services | $353M | 55 mo ago | 633 | 2010 | Hitesh Sheth CEO | 52 patents Detects and models network attack paths and privileged account misuse via behavior analytics. | 1 launch · 1 partnership |
| 3 | Skybox Solutions for risk analytics & vulnerability management | $343M | 40 mo ago | 79 | 2002 | — | — | — |
| 4 | Exaforce Provider of an agentic security operations platform with AI capabilities 64Funding top 15%Growth top 35%Talent top 38%Moat top 40% All 8 signals ▾Fundingtop 15% Growthtop 35% Talenttop 38% Moattop 40% AItop 45% Techbottom 48% Globalbottom 45% Marketbottom 40% Funding: Raised $263M across 4 rounds · 4 rounds over 3 yrs (1.3/yr) Growth: Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 64/100 | $263M | 1 mo ago | — | 2023 | Jakub Pavlik Co-Founder & Head Of Engineering | — | — |
| 5 | Extreme Networks Cloud based network security solutions provider | $230M | 97 mo ago | 1,172 | 1996 | Ed Meyercord President & CEO | 709 patents AI-driven network management, security automation, zero-trust access, edge visibility, and blockchain-based control | — |
| 6 | Noname Security 🦄 API security platform for busniesses | $220M | 54 mo ago | 471 | 2020 | Oz Golan Co-Founder & CEO | — | — |
| 7 | SECURITI AI-based data loss prevention solution | $156M | 31 mo ago | 679 | 2018 | — | 10 patents Sensitive data discovery, classification, and lineage for structured/unstructured information | — |
| 8 | Zscaler Provider of cloud-based security solutions for enterprise zero trust architecture | $148M | 71 mo ago | 5,962 5,962 → 8,984 (+51%) | 2007 | Jay Chaudhry CEO | 845 patents Patents concentrated in electrical & electronics | 1 internship · 1 partnership · 1 award |
| 9 | DTEX Provider of behavior analytics based insider threat detection | $138M | 27 mo ago | 49 | 2002 | Chris Nillissen Co-Founder | — | 1 partnership |
| 10 | Cyberhaven 🦄 Developer of a data detection and response security platform 67Funding top 23%Moat top 26%Tech top 38%Partners top 41% All 10 signals ▾Fundingtop 23% Moattop 26% Techtop 38% Partnerstop 41% Talenttop 41% Markettop 42% AItop 45% Growthbottom 47% Globalbottom 39% Newsbottom 15% Funding: Raised $134M across 6 rounds · 6 rounds over 10 yrs (0.6/yr) Moat: Editorial + unicorn rating 8/10 · Unicorn rank vs industry peers · Fliar Intelligence Index 67/100 | $134M | 14 mo ago | 117 | 2016 | Radu Banabic Co-Founder & Architect | — | — |
| 11 | Veza Offering cloud data security solutions | $125M | 13 mo ago | 199 | 2020 | Tarun Thakur Co-Founder and CEO | — | — |
| 12 | Forescout 🦄 Provider of cybersecurity solutions for continuous threat exposure management and mitigation | $120M | 47 mo ago | 1,000 | 2000 | Oded Comay Co-Founder & Chief Innovation Officer | 35 patents Enterprise network security: device visibility, classification, segmentation, and policy-based risk monitoring. | 1 launch · 1 partnership |
| 13 | Balbix Provider of AI-powered platform for cyber risk and exposure management | $100M | 51 mo ago | 51 51 → 41 (-20%) | 2015 | Gaurav Banga Founder & CEO | 6 patents Probabilistic risk modeling and device/network classification for enterprise cybersecurity. | — |
| 14 | CipherCloud Cloud infrastructure security solutions provider | $81M | 139 mo ago | 10 | 2010 | — | 20 patents Cloud data anonymization, encryption, and anti‑phishing security for SaaS applications | — |
| 15 | PeerNova Compliance solutions for financial industry | $69M | 79 mo ago | 44 | 2013 | Gangesh Ganesan Co-Founder & CEO | 43 patents Patents concentrated in computing, sensing & instrumentation | 1 launch |
| 16 | Concentric Provider of data security governance platform for data risk management and protection | $67M | 19 mo ago | 56 | 2018 | Madhu Shashanka Founder | 12 patents Microbial biocontrol agents and sustainable herbicide safeners for crop disease protection | 1 award |
| 17 | Qwiet Platform for cyber risk and vulnerability assessment | $58M | 49 mo ago | 54 | 2017 | Stuart McClure CEO | — | — |
| 18 | ThreatMetrix Provider of risk management and fraud detection solutions and services | $56M | 116 mo ago | 150 | 2005 | — | — | — |
| 19 | Elastica Security operations center for Cloud services | $55M | 135 mo ago | 80 | 2012 | — | — | — |
| 20 | Cyphort Protection against targeted threats, corporate espionage and IP theft. | $54M | 132 mo ago | 81 | 2011 | — | 77 patents Detects lateral movement, data exfiltration, and malware via network traffic analysis. | — |
| 21 | Vormetric Encryption based enterprise data security suite | $53M | 155 mo ago | 181 | 2001 | — | 80 patents Enterprise data encryption, key management, and secure cloud migration for distributed systems | — |
| 22 | LogLogic SIEM and log management company | $49M | 205 mo ago | 174 | 2002 | — | 20 patents Log data parsing, compression, and analytics for network and system telemetry | — |
| 23 | Beowulf Provider of decentralized tools for communication | $42M | 77 mo ago | 31 | 2019 | William Nguyen Founder | — | — |
| 24 | Splunk Provider of security and observability solutions that enable digital resilience | $40M | 44 mo ago | 8,870 | 2003 | Robin Das Co-Founder | 3,300 patents Real-time network security analytics and anomaly detection for large-scale data streams | — |
| 25 | Trustlook AI-powered cybersecurity solutions for mobile, IoT, and blockchain security | $35M | 122 mo ago | 7 | 2013 | — | 3 patents On-device dynamic malware detection and categorization for mobile applications. | — |
| 26 | Revelstoke Provider of a platform offering security orchestration and analytics | $33M | 39 mo ago | 60 | 2020 | Bob Kruse CEO | — | — |
| 27 | Imagry Provider of autonomous driving software solution | $29M | 48 mo ago | 100 | 2015 | Majed Jubeh Founder At Imagry | — | — |
| 28 | Spec Platform offering financial fraud solutions | $29M | 32 mo ago | 16 | 2020 | Nate Kharrl Co-Founder & CEO | — | — |
| 29 | ShieldX Networks Global cybersecurity solutions and services provider securing enterprises, service providers, and governments | $25M | 102 mo ago | 43 | 2015 | Ratinder Ahuja Co-Founder & CEO | 84 patents Patents concentrated in electrical & electronics | — |
| 30 | Nubeva Managed network security and BYOD security to the enterprise | $24M | 62 mo ago | 16 | 2016 | — | 12 patents Cloud security monitoring and ransomware recovery via key extraction and instrumentation | — |
| 31 | Light Beam Provider of data security posture management, access governance, and privacy solutions | $22M | 28 mo ago | 44 | 2020 | Priyadarshi Prasad Co-Founder & CPO | — | 1 job opening · 2 launchs |
| 32 | DeepFactor Cloud based performance monitoring management software provider | $18M | 56 mo ago | 13 | 2019 | — | 18 patents Kubernetes admission webhook mutation and runtime security telemetry analysis for SBOM and vulnerability reporting | — |
| 33 | Zentera Provider of zero trust security solutions for critical asset defense | $16M | 38 mo ago | 25 | 2012 | Jaushin Lee Founder | — | — |
| 34 | Infiot Provider of cloud-based intelligent thin wireless edge access platform | $15M | 68 mo ago | 11 | 2018 | Anupam Rai Co-Founder | — | — |
| 35 | AnChain.ai AI-based security solutions for the blockchain industry 62AI top 30%Funding top 34%Talent top 35%Moat top 37% All 9 signals ▾AItop 30% Fundingtop 34% Talenttop 35% Moattop 37% Innovationtop 42% Patentstop 44% Techtop 47% Marketbottom 46% Globalbottom 36% AI: Classified as an AI company · Product described with: ai-based Funding: Raised $12.0M across 3 rounds · 3 rounds over 8 yrs (0.4/yr) rank vs industry peers · Fliar Intelligence Index 62/100 | $12M | 6 mo ago | 39 | 2018 | Ben Wu co-founder and coo | 9 patents AI-driven blockchain analytics for transaction tracing, risk management, and smart contract security | 1 partnership |
| 36 | Atsign Provider of data encryption solutions | $11M | 39 mo ago | 33 | 2019 | Colin Constable Co-Founder & CTO | 9 patents Secure identity authentication and data‑sharing protocols for network‑based access control | 1 launch · 1 award |
| 37 | Sequel Platform offering virtual events management solutions | $11M | 45 mo ago | 13 13 → 24 (+85%) | 2019 | — | 13 patents Wireless security communication hardware with multi‑protocol, frequency‑diverse, remote/on‑site configuration | 1 award |
| 38 | Trunomi Enterprise KYC and data privacy solutions | $10M | 83 mo ago | 6 | 2013 | — | — | — |
| 39 | Polar Security Provider of cloud data security solutions | $8M | 53 mo ago | 31 | 2021 | Guy Shanny Co-Founder & CEO | — | — |
| 40 | SecurityAdvisor Platform for security awareness | $7M | 64 mo ago | 39 | 2018 | Rohan Puri Co-Founder | — | — |
| 41 | Opsinsecurity Provider of AI security solutions for data exposure and oversharing | $7M | 13 mo ago | — | 2024 | James Pham Co-Founder and CEO | — | — |
| 42 | Portal26 AI based data security platform for businesses | $6M | 7 mo ago | 5 | 2019 | Arti Raman Founder & CEO | 4 patents Patents concentrated in computing, sensing & instrumentation | — |
| 43 | Sonet.io Cloud application security solutions for businesses | $6M | 37 mo ago | 12 | 2020 | Venu Banda Co-Founder | 5 patents Remote secure access and authentication for client and browser connections | — |
| 44 | Userfront Cloud-based authentication solutions provider | $5M | 24 mo ago | 9 | 2017 | Damion Vega Cofounder | — | — |
| 45 | Protecto Provider of AI data security and privacy guardrail solutions | $5M | 31 mo ago | 24 | 2021 | Baskaran Alagarsamy Co-Founder & CTO | — | — |
| 46 | Yakoa AI-based platform for NFT fraud detection solutions | $5M | 43 mo ago | 6 | 2022 | Andrew Dworschak Co-Founder | — | — |
| 47 | Nirmata Cloud based kubernetes security platform | $4M | 16 mo ago | 8 | 2013 | Ritesh Patel Co-founder and VP Products | 2 patents Optimizing performance tuning for microservices-based cloud applications | — |
| 48 | Synqly Integration as a Service platform for security and infrastructure product integrations | $4M | 32 mo ago | — | 2023 | Joel Bauman Co-Founder and CEO | — | 5 partnerships |
| 49 | VSee Provider of HIPAA-compliant telehealth platform offering virtual care and remote monitoring | $3M | 20 mo ago | 8 | 2008 | Milton Chen Co-Founder & Co-CEO | — | — |
| 50 | Cybervergent Cloud based cybersecurity automation platform | $3M | 3 mo ago | — | 2023 | Adetokunbo Omotosho Co-Founder & CEO | — | 1 launch · 1 partnership |
Top 12 Cybersecurity companies in San Jose
#1
Series B · San Jose, California · founded 2023$263.2Mraised▾
Provider of an agentic security operations platform with AI capabilities. The platform offers threat detection, triage, investigation, and response across various attack surfaces. It integrates with existing tools to streamline security operations. The platform uses multi-model AI to deliver consistent and precise outcomes. It provides capabilities for autonomous alert triage and AI-driven analysis. The platform is available as a service or managed detection and response.
- May 2026Series B$125M
- Apr 2025Series A$75M
- Apr 2024Series A$36.2M
- Jul 2023Series A$27M
#2
Series D · San Jose, California · founded 2016 · 117 employees$134Mraised▾
Developer of a data detection and response security platform. The platform combines data loss prevention, insider risk management, and data security posture management. It offers data lineage tracing, AI-based content intelligence, and autonomous risk detection. The platform helps to secure data across email, web, cloud, and devices. It provides visibility into data movement and helps to detect risky behavior.
- Apr 2025Series D$100M
- Jun 2024Series C$88M
- Dec 2021Series B$33M
- Dec 2019Series A$13M
#3
Acquired · San Jose, California · founded 2020 · 199 employees$125Mraised▾
Offering cloud data security solutions. It is a data security platform powered by authorization. Their platform is purpose-built for multi-cloud environments to help you use and share your data more safely. It helps to dynamically understand, manage, and control who can and should take what action on what data.
- Apr 2025Series D$108M
- Sep 2023Series C—
- Aug 2023Series C$15M
- Apr 2022Series C$110M
#4
Series A · San Jose, California · founded 2018 · 39 employees$12Mraised▾
AnChain provides AI-based security solutions for the blockchain industry. Its product includes Blockchain Ecosystem Intelligence for behavioral-based intelligence solutions, Transactional Analytics Platform for automated alerts and anomaly detection, Smart Contract Auditing Sandbox for auditing security score of solidity sandbox, and more. Its features include a dashboard for crypto-assets, forensic analysis, incident response, and more.
- Dec 2025Series A—
- Oct 2021Grant (prize money)—
- Aug 2021Series A$10M
- Feb 2020Seed—
#5
Seed · San Jose, California · founded 2023$3Mraised▾
Cloud based cybersecurity automation platform. Platform is a cloud based cybersecurity automation platform that automates compliance and governance for businesses. Also offers red teaming solutions that enable clients to conduct a evaluationof the infrastructures, identifying vulnerabilities and simulating real world cyberattacks to strengthen defenses.
- Mar 2026Seed$3M
#6
Series A · San Jose, California · founded 2019 · 5 employees$6Mraised▾
AI based data security platform for businesses. It connects Generative AI usage to existing data loss prevention, security information and event management, and incident management systems to provide security teams with the ability to monitor and investigate Generative AI-related incidents.
- Nov 2025Series A$9M
- Feb 2022Seed$6M
#7
Series B · San Jose, California · founded 2018 · 56 employees$67Mraised▾
Provider of data security governance platform for data risk management and protection. The platform focuses on identifying, classifying, and remediating data risks across on-premises, cloud, and hybrid environments. It offers solutions for data security posture management, data detection and response, data access governance, and data loss prevention. The platform helps organizations discover and protect personally identifiable information, personal health information, payment card information, and intellectual property. It provides centralized remediation and easy deployment with agentless architecture. The platform also offers data classification and privacy data protection capabilities.
- Oct 2024Series B$45M
- May 2022Series A$14.5M
- Jan 2020Seed$7.5M
- 2019Seed—
#8
Lacework 🦄Acquired · San Jose, California · founded 2015 · 1174 employees$1.9Braised▾
AI powered cloud security posture management solution. It provides a cloud workload security solution to monitor and secure cloud infrastructure. It creates a temporal baseline of cloud operations to detect and investigate breaches, cyberattacks, and insider threats. It uses insider tracking technology to expose the user intention behind every command.
- Feb 2022Series D—
- Nov 2021Series D$1.3B
- Jan 2021Series D$525M
- Sep 2019Series C$42M
#9
Seed · San Jose, California · founded 2024$7Mraised▾
Provider of AI security solutions for data exposure and oversharing. It offers services to discover AI risks and govern AI data access. The company helps enterprises catalog AI, assess risk, and manage security posture. It also provides AI detection and response to monitor AI tools.
- Apr 2025Seed$7M
#10
Series E · San Jose, California · founded 2002 · 49 employees$138Mraised▾
Provider of behavior analytics based insider threat detection. It provides targeted insider threat detection in an enterprise. It is an agent-based monitoring tool which selectively captures relevant required data and employs analytics to detect the threat.
- Mar 2024Series E$50M
- Nov 2020Series D$20.7M
- Apr 2017Series C$9.1M
- 2016Series B—
#11
Acquired · San Jose, California · founded 2002 · 79 employees$343.4Mraised▾
Skybox provides solutions for risk analytics and vulnerability management. The product offered by the company is a platform that provides threat ranking based on product and technology repositories, alert properties, host, and vulnerability instances. It also offers remediation for each threat and automated tracking of remediation status. The features of the product include analytics, modeling, and simulation, automation, policy management, cloud security management, attack simulation, etc. The clients of the company include BURBERRY, Takeda, BARCLAYS, TOYOTA, HBC, P&G, etc.
- Feb 2023Series F$50M
- Oct 2017Series F$150M
- Dec 2013Series C$6M
- Nov 2011Series C$3M
#12
Acquired · San Jose, California · founded 2018 · 679 employees$156Mraised▾
SECURITI.ai provides artificial intelligence-based data loss prevention solution. It’s product-suite, PRIVACI.ai is PrivacyOps platform which automatically manages unstructured and structured PI data. It also provides a solution to automate the third party assessment process, collect and manage consent from multiple sources.
- Nov 2023Series C—
- Mar 2023Series C—
- Oct 2022Series C$75M
- May 2021Series B—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Cybersecurity coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Cybersecurity is moving in the United States
A read on the academic research around Cybersecurity — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 3,240 United States-affiliated papers.
- Purdue University West Lafayette85
- Northeastern University82
- Film Independent58
- Georgia Institute of Technology46
- DEVCOM Army Research Laboratory41
- Intrusion detection system94→301
- Anomaly detection30→107
- Key (lock)11→84
- Internet of Things2→61
- Artificial neural network2→57
- Intrusion detection system97→202
- Artificial neural network3→47
- Anomaly detection25→61
- Internet of Things1→33
- Support vector machine8→38
- Key (lock)6→39
- Intrusion detection system13→45
- Exploit9→30
- Malware6→26
- Adversarial system1→19
Where cybersecurity is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing cybersecurity patents in the United States
United States cybersecurity patent filing is accelerating — 237,304 filings from 8,000 assignees (2016–2025), led by IBM, Microsoft, Intel; annual filings 18790→23467.
- IBM27110
- Microsoft22601
- Intel12666
- Google8565
- Qualcomm7612
- Apple6755
- Hewlett Packard Development5761
- Capital One Services4646
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.