Series A Cybersecurity companies in Tel Aviv
Companies defending or attacking software, networks, and cloud infrastructure. Filtered to Series A-stage companies headquartered in Tel Aviv.
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Ranked by current headcount across Series A Cybersecurity companies in Tel Aviv. Refreshed daily.
- 1Radware· Tel Aviv-Yafo, Tel Aviv District, Israel
Radware® is a global leader in application security and delivery solutions for multi-cloud environments. The company’s cloud application, infrastructure, API, and AI security solutions use AI-driven algorithms for precise, behavior-based, real-time protection against sophisticated web, application, and DDoS attacks, API abuse, business logic threats, and malicious bots. Radware delivers end-to-end API security, including discovery, posture management, testing, and runtime protection, along with advanced protection for AI agents and models. Enterprises and carriers worldwide rely on Radware to address evolving cyberthreats, protect their brands and business operations, and reduce costs. For more information, please visit the Radware website.
- Series A
- 1.6k employees
- Founded 2020
- 2Koi· Tel Aviv-Yafo, Tel Aviv District, Israel
Koi gives enterprises complete visibility and control over every piece of software - extensions, packages, apps, and AI models. By surfacing blind spots traditional tools miss, Koi helps security teams detect risks early, enforce policy, and protect endpoints without slowing innovation.
- Series A
- 204 employees
- Founded 2023
- 3Cye· Herzliya, Tel Aviv District, Israel
Cye combines an AI-native exposure management platform with world-class cyber expertise to help organizations know the financial impact of their cyber exposure, prioritize risk mitigation and automate remediation. Cye’s 500+ customers gain the clarity to make smart defensible decisions that reduce their risk exploitability with speed, and improve their resilience to the hyper dynamic threat landscape. Cye’s customized reporting enables the sharing of vital board-level metrics and validating exposure management over time. In addition, Cye improves cybersecurity maturity by mapping weaknesses and defining targets based on industry frameworks.Founded in 2012, with headquarters in Israel and operations around the world, Cye is funded by EQT and 83North.
- Series A
- 185 employees
- Founded 2012
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- 4Remedio· Tel Aviv District, Israel
Remedio offers smart device hardening for scalable posture management.From configurations and vulnerabilities to compliance and application control, we lock down endpoint risks before attackers (or auditors) can exploit them. Covering IT & OT devices running Windows, Linux, or MacOS in on-prem and hybrid environments, Remedio delivers preemptive cybersecurity across the estate. Welcome to the future: fast deployment, non-disruptive remediation, and on-demand rollback.Prevent drift, enforce golden images, validate policies, assure compliance, and stop AI threats.
- Series A
- 120 employees
- Founded 2019
- 5IONIX· Tel Aviv-Yafo, Tel Aviv District, Israel
IONIX External Exposure Management protects enterprises’ external attack surface from cyber risks and increases security team efficiency by providing tools that shorten the time to discover and prioritize exposures. IONIX reduces the exploitable attack surface by discovering every internet-facing asset, assessing dependencies and connections, and validating exploitable risks to prioritize remediation of critical, impactful exposures. IONIX reduces alert fatigue, streamlines the process for resolving alerts and ensures that they reach the right team. Global leaders including BlackRock, Infosys, Sompo, The Telegraph and E.ON depend on IONIX for proactive management of their complex and dynamic attack surface. www.ionix.io
- Series A
- 109 employees
- Founded 2017
Find engineers at Series A Cybersecurity companies in Tel Aviv
Searching for “engineers at top Series A Cybersecurity companies in Tel Aviv” surfaces this slice of the market. The list above ranks Cybersecurity companies headquartered in Tel Aviv whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. With 20 matching companies in Refolk’s index, this is a tight read on where the Cybersecurity talent in Tel Aviv is heating up.
Three filters at once narrows the field hard. The companies that survive all three - Series A, Cybersecurity, in Tel Aviv - are usually the most targeted recruiting pool a hiring manager can ask for. Senior engineers, founding designers, and product leads here are about to become Cybersecurity’s next operators and angel investors.
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