Top Security Startups in 2026

Archer, Splunk CDM tools to manage and track security data and dashboard to display risks.

As an industry leading security provider, Securitas focuses on ways to continuously improve our operational structure, the knowledge of our employees and the processes surrounding service delivery.

TransferChain enables users to transfer and store client-side encrypted files on a decentralized network.

NetSPI is a penetration testing company that is transforming the cyber security testing industry with tech-enabled services and prevention-based cyber security techniques. Global enterprises choose NetSPI’s penetration testing service to test their applications, networks, and cloud infrastructure at scale and manage their attack surfaces. NetSPI conducts more than 150,000 hours of security testing every year and is changing pentesting entirely. We make it easier to track trends and improve your vulnerability management program. How? Because our people, our processes, and our technology are unrivaled. Since 2001, we have focused on good hiring, ongoing training, constant research, and long retention rates. Our security experts have authored more than 100 scripts and toolsets as well as hundreds of technical and executive blogs. NetSPI wouldn’t be what it is today without its employees and the culture of innovation we have built. Our employees value working with great people, doing important work, and having fun along the way. We pride ourselves on how well our team works together, resulting in a 92% retention rate in 2020. First-class pentesting delivery is a core tenet of the NetSPI experience. Penetration Testing as a Service (PTaaS) gives you real-time visibility into our pentesting results, allows you to secure your environments continuously throughout the year, and puts you back in the driver seat of your penetration testing program. Process is ingrained in our company culture. From project management workflows and practitioner guides to standardized checklists and pentesting playbooks, we have formalized quality assurance and oversight to deliver consistent results. Excellent employee benefits, work life balance, work culture, valued employees and transparency is at offer at NetSPI.

Giesecke & Devrient (G&D) is a leading international technology provider head¬quartered in Munich, Germany. Founded in 1852, G&D is today a global market leader and pioneering innovator in banknote production & processing, smart card solutions for telecommunications, electronic payment, and security documents & identification systems. G&D Server, Software and Services (3S) is a leading global development and service organization developing and operating solutions for securing your mobile future in such areas as Mobile Banking, Near Field Communication (NFC), Machine-to-Machine (M2M), Trusted Execution Environment (TEE) as well as continual innovations to its market leading SIM and Mobile Device Management solution.

SaveBreach provides the necessary smart automation and gray hat style manual security testing services to its clients. Automation is the key to maintaining security at scale and SaveBreach solves this problem exactly the way it occurs. With our auto-scaling infrastructure defense solution, security is scalable as you scale. Our flagship product is designed to learn your application's structure and generate risk model, predict threats to your application and organization. Not just that, we double up as your virtual security team for a minimal amount of money while your startup is growing. With out guidance you can save your company from breach and attackers!

Fivecast is a world-leading provider of cutting-edge digital intelligence solutions. We enable the world’s most important public and private organizations to explore masses of data and uncover actionable insights, critical to protecting global communities. As a growing start-up with under 100 people globally, all team members are provided with the opportunity to directly contribute to our success, participate in the development of new and emerging technologies and grow their career in a challenging and dynamic high-tech environment. We are headquartered in Adelaide, Australia with teams in Canberra, Virginia USA and London UK. Our Work Environment and Culture Our Australian based headquarters is only a few minutes from the city, located at Base 64 on North Terrace, home to other innovative and interesting technology start-ups. We will be relocating to Adelaide city in early 2023 into an exciting purpose-built space to allow for continued collaboration, innovation & growth.

Nexta Security delivers Strategic and Tactical Cybersecurity solutions that protect your business from current and future threats.

Lakera is a real-time GenAI security company. The company is dedicated to ensuring the safe and responsible development and deployment of artificial intelligence technologies. To accelerate the secure adoption of AI, the company developed Gandalf, an educational tool that has taught over one million users about AI security. Lakera leverages AI to continually evolve its defenses, enabling customers to stay ahead of emerging threats.

Gray Swan AI is a cybersecurity company focused on enhancing the safety and reliability of artificial intelligence systems. The company specializes in identifying and mitigating vulnerabilities in AI models, particularly large language models (LLMs). Its core offerings include Cygnet, a secured version of Meta's Llama 3-8B model, and Shade, a continuous red-teaming tool that simulates adversarial attacks to expose system weaknesses. Gray Swan AI also operates the Gray Swan Arena, a platform where researchers and developers can participate in challenges to improve AI model security. The company aims to protect AI deployments from threats such as prompt injections, adversarial inputs, and data extraction.