OnDefend

OnDefend is a cybersecurity company based in Jacksonville, United States working in penetration testing, offensive security, cloud security +4 more.

OnDefend is a US-based offensive security company headquartered in Jacksonville, Florida. It provides penetration testing, red teaming, adversary simulation and continuous security validation services. Its services cover network, cloud, application, hardware and firmware, IoT, operational technology, cryptography, and AI and LLM systems. Its flagship offering, the Continuous Security Inspector (CSI) program, delivers ongoing intelligence-driven red team testing that aims to uncover attack paths, zero-day indicators and silently failing controls. The company supports its work with its proprietary BlindSPOT technology, which combines AI-enabled analytics and automation with expert-led testing. It serves enterprise, critical infrastructure and public sector clients, and it also runs election security and facilities security testing programs.