About us

K4 Active Defense is a specialized defense services company delivering advanced, threat-based training and realistic adversary environments for the space domain. With 20 years of operational air and space experience, we specialize in designing and implementing high-fidelity opposition force simulations—encompassing orbital threats, electronic warfare, cyber intrusions, and multi-regime engagements—for aerospace and national security stakeholders. We provide tailored, unclassified scenarios that enable operators of all experience levels to develop rapid decision-making, indications and warnings, and defensive countermeasures against evolving threats. Our experts deliver customized solutions that build proficiency and resilience, ensuring our customers maintain superiority in contested environments.