Cybersecurity Companies

170 companies building the future of cybersecurity, across 74 cities.

Cybersecurity companies in San Francisco

23 companies · 269 open roles

Upwind Security

Upwind provides cloud security solutions. The company targets developers, security engineers, and DevOps professionals as its primary users. By focusing on these roles, Upwind aims to secure cloud environments for its customers.

Cybersecurity201-500Series B
Cogent Security

Cogent is building an AI Taskforce for Vulnerability Management to drive efficiency in enterprise VM programs and accelerate risk reduction with AI agents that supercharge in-house security teams. The company is trusted by the world's best brands. Cogent is built by industry leaders from Abnormal AI, Coinbase, Google Research, Stripe, and more.

Cybersecurity11-50Series A
Kai Security

Kai is an AI company focused on rebuilding cybersecurity for the machine-speed era. It was founded by the creators of category-defining companies Claroty and SecurityMatters, with co-founders Galina Antova (CEO) and Damiano Bolzoni (CTO). Kai is trusted by Fortune 500 enterprises. Its mission is to enable security with no categories, no silos, and no human-speed bottlenecks.

Cybersecurity11-50Series A
Socket

SOCKET is the first chain abstraction protocol. SOCKET was founded in 2021. SOCKET's mission is to solve increasing fragmentation between rollups and chains. SOCKET has facilitated over $11 billion in volumes in the last two years. It is leveraged by major protocols and applications such as Metamask, Coinbase, Rainbow Wallet, Zapper, Zerion, OpenSea, Aevo, and Matcha.

Cybersecurity51-200 employeesSeries C
Riot

Riot, founded in Winter 2020 and headquartered in Paris, France, is a software-as-a-service company focused on cybersecurity awareness for fast-growing companies. Its mission is to help organizations strengthen their cybersecurity through awareness and education. The company was founded by Benjamin Netter and is currently active, with a team of 90 employees and Nicolas Dessaigne as its primary partner. Riot was part of the Winter 2020 batch and raised $30 million in February 2025 to support its

Cybersecurity51-200Series B
Harmonic Security

Harmonic Security protects sensitive data in real time to enable safe adoption of AI tools. The company aims to give teams full control and stop leaks so they can innovate confidently. It was recognized as an RSA Innovation Sandbox finalist in 2024, underscoring its industry impact. Harmonic Security redefines data protection for the GenAI era.

Cybersecurity11-50Series A
Infisical

Infisical is the #1 open source secret management platform for developers, and its mission is to make security easier for all developers, starting with secret management. The company is headquartered in San Francisco and operates a largely remote team, hiring globally. Infisical has raised $3 million in funding from Y Combinator, Gradient Ventures, and angel investors, with notable investors including Elad Gil, Arash Ferdowsi, Paul Copplestone, James Hawkins, Andrew Miklas, and Diana Hu. It desc

Cybersecurity51-200 employeesSeries A
DepthFirst

depthfirst is an applied AI lab. depthfirst believes software is the foundation of modern civilization. depthfirst works to advance its mission by securing the world's software. The company positions itself at the intersection of AI and software security, aiming to protect critical digital infrastructure globally.

Cybersecurity11-50Series B
Petra Security

Petra Security is an AI-powered cybersecurity platform founded by YC W24 alumni with deep expertise from leading security firms including Abnormal Security, Palo Alto Networks, and Bridgewater. Based in the San Francisco Bay Area, the company focuses on protecting small and medium-sized businesses from account takeovers in Microsoft 365 environments, a mission aligned with stopping the most dominant cyberattacks affecting organizations today. Despite being a lean team of approximately 15 people,

Cybersecurity11-50Seed
Semgrep

Semgrep is on a mission to make it expensive to exploit software. As the team behind the most popular SAST, Semgrep is trusted by leading companies like Snowflake, Plaid, Figma, Lyft, and Dropbox to secure their software. The company is also backed by top investors, including Felicis Ventures, Lightspeed Venture Partners, Menlo Ventures, Redpoint Ventures, and Sequoia Capital.

Cybersecurity51-200Series D
Opal Security

Opal is a New York City and San Francisco-based company trusted by leading hypergrowth startups and Fortune 500 enterprises, including notable customers like Databricks and Figma. Backed by prominent investors including Greylock, Battery Ventures, and Silicon Valley CISO Investments, the company operates with a lean organizational structure to serve its diverse client base. Through its focused approach, Opal has established itself as a key partner for organizations seeking specialized solutions

Cybersecurity51-200Series B
Secureframe

Secureframe is a cybersecurity compliance company that provides automated compliance platform solutions to safeguard thousands of businesses worldwide. Built by compliance experts, the company transforms how businesses and service providers manage their security and compliance programs, enabling them to focus on core operations while maintaining seamless, secure compliance. Recognized as one of the industry's most innovative and trusted providers, Secureframe has earned significant media attenti

Cybersecurity51-200Series B

Cybersecurity companies in Tallinn

11 companies

Cybersecurity companies in London

10 companies · 6 open roles

Risk Ledger

Risk Ledger operates in third-party risk management for supply chain security, using a network-based model that connects the entire supply chain into an active network to deliver real-time insights. It emphasizes moving from point-in-time assessments to real-time data collected directly from suppliers. The company positions itself as offering a comprehensive, security-led third-party risk management program for supply chains, enabling continuous identification, measurement, and management of ris

Cybersecurity51-200Series B
Venari Security

Venari Security focuses on crypto agility to assess external and internal cryptographic risks. Its mission includes helping organizations prepare for a quantum future. The company aims to support regulatory compliance and privacy adherence. Venari Security positions itself as a provider focused on cryptographic risk and future readiness.

Cybersecurity11-50Series A
Aglide

Aglide offers seamless access management and single sign-on for all apps, eliminating the need for SAML support.

Cybersecurity1-11
Crypto Quantique

Crypto Quantique is a quantum driven cybersecurity company addressing the growing challenges of end-to-end IoT security.

Cybersecurity11-50
CyberSmart

Cybersecurity should be simple.

Cybersecurity15-50
HelmGuard AI

HelmGuard is the AI Risk Operating System: a unified platform delivering GRC outcomes at machine speed.

Cybersecurity5-10
Metomic

We help modern businesses detect, classify and secure their AI and SaaS data.

Cybersecurity11-50
Secured Cyber Solutions
Cybersecurity11-50
Trent.ai

Trent AI develops an agentic AI security platform functioning as an automated AI security engineer to assess, monitor, and manage autonomous workflows. The plat

Cybersecurity1-10
Yoti

We help you to build trust with privacy-focused identity and age solutions.

Cybersecurity400-500

Cybersecurity companies in New York

9 companies · 52 open roles

DataDome

DataDome stops cyberfraud and bots in real time across sites, apps, and APIs. It has been named a Leader in the Forrester Wave for Bot Management, signaling strong market recognition. The DataDome platform is built on a multi-layered AI engine that focuses on intent, not just identity. It is backed by a 24/7 SOC team of advanced threat researchers and stops over 350 billion attacks annually. The solution is fully automated and integrates into any tech stack.

Cybersecurity201-500Series C
SecurityScorecard

SecurityScorecard is the global leader in cybersecurity ratings, continuously assessing the security posture of over 12 million companies across 64 countries. Founded in 2013 by security and risk experts Dr. Alex Yampolskiy and Sam Kassoumeh, the company leverages patented rating technology to help more than 25,000 organizations manage cybersecurity risks through self-monitoring, third-party risk assessment, board reporting, and cyber insurance underwriting. Headquartered in New York City and ba

Cybersecurity501-1,000 employeesSeries E
Blockaid

Blockaid is an onchain security platform trusted by chains, protocols, wallets, exchanges, banks, and digital asset managers to understand and secure what matters most. It provides visibility through direct integrations with the most used web3 wallets and internet-wide monitoring that detects threats before they reach users. The more pre-transaction, onchain, offchain, and threat intelligence data Blockaid sees, the more its models improve (flywheel effect). This flywheel has made Blockaid the p

Cybersecurity51-200Series B
Agency

The company delivers enterprise-level cybersecurity for individuals at the highest risk of cyberattacks due to their job, employer, or industry. It aims to transform cybersecurity from a burden into a perk, making personal security and privacy a core part of enterprise security. The company believes cybersecurity is a process, not a product, and describes itself as transforming the future of cybersecurity.

Cybersecurity1-10
Apiiro

Apiiro provides an Agentic Application Security Platform that governs AI-generated code and eliminates backlogs with an AutoFix Agent. It acts as a force-multiplier for application security, software development, and risk management teams by unifying risk visibility and automating risk prioritization, remediation, and prevention. Apiiro's patented Deep Code Analysis technology continuously discovers, inventories, and visualizes software architecture from code to runtime to detect, prioritize, an

Cybersecurity51-200Series B
Vicarius
Cybersecurity51-200
Beyond Identity

Beyond Identity is an IAM platform. It is the only IAM platform architected to stop unauthorized access. Its mission is to protect the livelihood of its customers, freeing them to focus on what matters. Built as a secure-by-design platform, it is foundationally designed to ensure only trusted users and secure devices can gain and maintain access.

Cybersecurity51-200Series C
Sonrai Security

Sonrai Security is a leading provider of public cloud identity and access management solutions. The company’s mission is to empower enterprises of all sizes to innovate securely and confidently. It serves organizations running on AWS, Azure, and Google Cloud platforms. Sonrai Security has offices in New York, USA, and New Brunswick, Canada. It is backed by investors ISTARI, Menlo Ventures, Polaris Partners, and TenEleven Ventures, and is trusted by leading companies across various industries.

Cybersecurity51-200Series C
Tarsal

**Tarsal** Data pipeline for your security data lake. Tarsal is a data pipeline custom built for security teams. As security data grows 25% year over year, security teams desperately need access to best-in-class data infrastructure. Tarsal bridges the gap between the modern data stack and security teams, pioneering the modern security data stack. **Latest News** Tarsal Raises $6 Million for Security Data Movement Platform - SecurityWeek Mar 21, 2024 **TL;DR** Tarsal is the first data pipel

Cybersecurity1-10Seed

Cybersecurity companies in Paris

8 companies

Cybersecurity companies in Barcelona

5 companies

Cybersecurity companies in Madrid

5 companies

Cybersecurity companies in California

4 companies

Pangea

Pangea offers an AI Guardrail Platform designed to secure AI applications and protect workforce AI usage. The platform helps security and product teams ship secure AI applications quickly. Pangea states that the platform covers eight of the OWASP Top Ten Risks for LLMs. Customers can deploy guardrails via gateways or directly into applications with just a few lines of code.

Cybersecurity51-200Series B
Seraphic Security

Seraphic operates in the Enterprise Browser Security market, developing technologies to secure access to SaaS and private web applications for employees and third parties from managed and personal devices. The company holds patents related to browser security, underscoring its focus on innovation in this space. Seraphic enables secure, cost-effective access without the complexity and cost of VDI or VPN, and it supports all browsers as well as SaaS desktop applications such as Teams, Slack, Disco

Cybersecurity51-200Series A
StrongDM

StrongDM positions itself as the world's only Zero Trust PAM. It provides access control and security solutions for critical infrastructure. The company offers 24/7 support.

Cybersecurity51-200Series C
Swif.ai

Swif.ai positions itself as the governance layer that lets every company unleash AI safely and aims to own that future. The company emphasizes enabling safe AI deployment across organizations through governance. Swif.ai is SOC 2 Type II. Together, these facts portray Swif.ai as a governance-focused AI company with a strong security posture.

CybersecuritySeed

Cybersecurity companies in Leuven

4 companies

Cybersecurity companies in Rome

4 companies

Cybersecurity companies in Sofia

4 companies

Cybersecurity companies in Zurich

4 companies

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