Best Cybersecurity Companies in Cupertino, United States
The 37 best Cybersecurity companies in Cupertino, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Versa Networks.
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 Cupertino
| # | Company | Disclosed funding | Last round | Stage | Founder | Employees | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Versa Networks Provider of secure access service edge (SASE) and SD-WAN solutions | $316M | 46 mo ago | Series D | Apurva Mehta Co-Founder & CTO | — | Cart FunctionalityWooCommerceWordPress+37 | 85 patents Secure access service edge networking and tunnel-less SD-WAN flow identification | — |
| 2 | Bromium Innovative technology solutions for security, inclusion, and a better future | $116M | 125 mo ago | Acquired | — | 42 42 → 104 (+148%) | — | 69 patents Secure isolation and threat monitoring for virtual machines via hypervisor-based security controls. | — |
| 3 | Oblix SSO based integrated IAM solution | $90M | 264 mo ago | Acqui-Hired | Ryan Brown Founder & Head chef | — | — | — | — |
| 4 | PostX Encryption based email security software for enterprise | $48M | 246 mo ago | Acqui-Hired | Chuck Robbins CEO | — | — | — | — |
| 5 | Solidcore Systems Application whitelisting software | $45M | 232 mo ago | Acquired | — | 40 | — | — | — |
| 6 | Voltage Data-centric encryption and key management | $39M | 151 mo ago | Acqui-Hired | Dan Boneh Co-Founder | 104 | — | 6 patents Solar power distribution hardware: trunk bus systems and photovoltaic wiring connectors/fuses. | — |
| 7 | TaaSera Behavior analytics based breach detection & incident response solution | $20M | 118 mo ago | Acquired | — | 4 | — | 30 patents Software security: application attestation, runtime integrity, trust verification, and threat remediation | — |
| 8 | Aujas Platform for security analytics and risk assessment | $19M | 130 mo ago | Acquired | Sameer Shelke Co-founder & CEO | 513 513 → 538 (+5%) | HubSpot CMS HubYouTubeBootstrap+23 | — | — |
| 9 | Blue Lane Controlled code execution based data center security | $13M | 253 mo ago | Acqui-Hired | Sandeep Johri Founder & Board Member | — | — | — | — |
| 10 | Riverhead Networks Distributed denial of service attack detection, alert and protection solution | $12M | — | Acquired | Chuck Robbins CEO | — | — | — | — |
| 11 | StrongKey Provider of data security solution using encryption | $10M | 95 mo ago | Series A | Arshad Noor Founder & CTO | 18 | — | — | — |
| 12 | Gigafin Networks Firewall & network flow monitoring based network security | $10M | 226 mo ago | Series D | Kevin Rowett Co-Founder & CTO | — | — | — | — |
| 13 | ArcSight AI-powered information management solutions for cybersecurity, content, and business networks | $10M | 255 mo ago | Acquired | — | 512 | — | 83 patents Real-time security analytics, log storage/query, asset identification, and pattern detection. | — |
| 14 | Priva Security Authentication & encryption based data security | $4M | 178 mo ago | Deadpooled | Jeff Minushkin Founder & CEO | — | — | — | — |
| 15 | Codenomicon Provider of customer downloads, patches, and support material requiring an account | $4M | 259 mo ago | Acquired | — | 4,384 | — | 2 patents Automated network-based software testing platforms for application validation | — |
| 16 | ViVu Cloud based desktop video collaboration platform | $3M | 183 mo ago | Acquired | Sudha Valluru Founder | — | WordPressMySQLPHP+8 | 9 patents Adaptive interactive multimedia streaming with latency control and bandwidth balancing | — |
| 17 | Xiid Cloud data security solutions provider | $2M | 12 mo ago | Series A | — | 5 | Cart FunctionalitySquarespace CommerceSquarespace+16 | 13 patents Passwordless authentication, pictorial one‑time codes, and secure IP tunneling for network access | — |
| 18 | Zenarmor Cloud based solutions for network security | $850K | 51 mo ago | Seed | Murat Balaban Founder & CEO | 2 | AlgoliaNode.jsPHP+26 | — | — |
Top 12 Cybersecurity companies in Cupertino
#1
Series A · Cupertino, California · founded 2018 · 5 employees$1.8Mraised▾
Xiid is a cloud data security solutions provider. The features of the product include secure database and object access, one time code authentication, identity, and access management, single sign on, username less and password less authentication, one time password verification, encryption key management, secure storage, etc.
- Sep 2025Series A—
- Nov 2021Seed$1.8M
#2
Series D · Cupertino, California · founded 2012$316.4Mraised▾
Provider of secure access service edge (SASE) and SD-WAN solutions. The company delivers networking, security, and analytics through cloud and on-premises deployments. It offers a platform for building enterprise networks and managed service offerings. The company’s software-based approach provides agility, cost savings, and flexibility. The platform implements enterprise and service provider use cases, including comprehensive SASE, layered security, and managed services.
- Oct 2022Series D$120M
- Oct 2022Conventional Debt—
- Jun 2021Series D$84M
- May 2020Series D$52M
#3
Acquired · Cupertino, California · founded 2010 · 42 employees$115.7Mraised▾
Innovative technology solutions for security, inclusion, and a better future. The company delivers endpoint security solutions, strengthening cyber-resilience with layered protection from hardware to cloud. They offer threat containment, data protection, and printer security, supporting both their own and other PCs and printers. The company also focuses on creating an inclusive workplace, valuing diverse perspectives to drive innovation. They are committed to building a workplace that reflects the richness of the world, fostering a culture where everyone feels seen, heard, and empowered. They design for accessibility and strive for fair and equitable pay. The company provides software and services, business solutions, and support. They offer subscriptions, care packs, and solutions for workforce experience, video and voice collaboration, and government and education.
- Mar 2016Series D$40M
- Oct 2013Series C$40M
- Jun 2012Series B$26.5M
- Jun 2011Series A$9.2M
#4
Acqui-Hired · Cupertino, California · founded 1996$90Mraised▾
SSO based integrated IAM solution. It is a provider of identity-based security and web access management solutions, focusing on securing access to enterprise applications for cloud and on-premises deployments.
- Sep 2004Series F—
#5
Acqui-Hired · Cupertino, California · founded 1994$47.7Mraised▾
PostX provided encryption software of enterprise email security. Software was used to deliver encrypted e-mail to a user’s mail box without the use of any special client software to decrypt the message. Acquired by IronPort in 2006 to strengthen its e-mail gateway security and rebranded it to PostX Secure Envelope brand.
- Feb 2006Series E$5.7M
- Dec 2004Conventional Debt$2.4M
- Aug 2003Conventional Debt$4.8M
- Jun 2003Conventional Debt$2.4M
#6
Acquired · Cupertino, California · founded 2002 · 40 employees$45.4Mraised▾
Solidcore Systems, developed software to detect and prevent unwanted change. Provides software for change management auditing, configuration control, PCI compliance and system lockdown. S3 Control, a change control solution improved information technology service availability and regulatory compliance and S3 Control Embedded, a change control software solution enabled original equipment manufacturers to secure and control devices.
- Apr 2007Series D$10M
- Feb 2006Series C$10M
- Feb 2005Series B$20M
- Nov 2003Series A$5.3M
#7
Acqui-Hired · Cupertino, California · founded 2002 · 104 employees$38.6Mraised▾
Voltage Security is a data protection provider, delivering secure, scalable data-centric encryption and key management solutions. It provides data security for email, web, files and payments as well. It has a product for data security in Hadoop with a data-centric framework that protects data end-to-end, from the moment of capture, through the business analysis, to the back-end data store.
- Jan 2014Series D$625K
- Oct 2007Series D$12M
- May 2005Series C$15M
- Nov 2003Series B$11.6M
#8
Acquired · Cupertino, California · founded 2008 · 513 employees$18.9Mraised▾
Aujas provides a platform for security analytics and risk assessment. The product offered by the company is a security analytics visualization platform (SAVP) that provides customizable solutions to provide current security posture of an enterprise. It also provides SIEM, anti-virus, firewall, intrusion prevention system, etc. It comprises of products for data security, data repository, data enforcer, and content lock. It provides a web-based solution to enter and edit information about critical data. The features of the product include a content lock that provides online sharing within enterprise boundaries and offline-sharing over mobile and personal devices using encrypted storage containers.
- Nov 2015Series B$1.4M
- Jul 2013Series B$6.7M
- Jun 2012Series A$213.2K
- Jun 2011Series A$2M
#9
Acquired · Cupertino, California · founded 2011 · 4 employees$19.9Mraised▾
TaaSera develops cloud-based security assessment tools that continuously monitor network behavior to identify compromised systems during incident response. Product NetTrust is a risk breach detection system (BDS) to determine at-risk and compromised systems inside the network. Its AWARE analytics platform (Attack Warning and Response Engine) automatically maps behavior events to discrete stages in the life cycle of advanced threats, and then generates Profiles containing multiple related events correlated during observation. Solution performs security analytics to identify hidden post-infection, pre-breach network behaviors.
- Nov 2016Series A$1M
- Apr 2015Series A$14.5M
- Mar 2015Seed$250K
- Mar 2014Seed$4M
#10
Series A · Cupertino, California · founded 2001 · 18 employees$10Mraised▾
Strongkey provides a solution for data security. The products offered by the company for data security are The Tellaro, Key Appliance, DP appliance, and PKI appliance. The Data Protection Appliance DPAppliance or DPA encrypts documents to provide security. In addition to the encryption, it also provides tokenization, strong authentication, a cryptographic module, and high availability. The target markets include fintech, healthcare, legal services, and education.
- Oct 2018Series A$10M
- Dec 2017Series A$7.5M
#11
Acqui-Hired · Cupertino, California · founded 2002$13.4Mraised▾
Bluelane provided solutions to secure virtual and physical data centers. Product VirtualShield secured by controlled code execution in the network and taking appropriate countermeasures against traffic aimed at known software vulnerabilities without requiring signatures. Vmware acquired it 2008 to strengthen its virtualization security.
- Jul 2005Series B$13.4M
#12
Acquired · Cupertino, California · founded 2000$12Mraised▾
Riverhead Networks provided cybersecurity solutions to protect the public-facing enterprise IT assets from distributed denial of service (DDoS) attacks. The platform employed multiple proprietary algorithms to alert and prevent DDoS attacks. Acquired by it's own early-stage investor Cisco on Mar 2004 that merged the development center with the Cisco Israel Development Center in Netanya.
- Series A$12M
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
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.