SimSpace provides a high-fidelity cyber range platform designed for cybersecurity training, testing, and operational readiness. Founded in 2015 by innovators from US Cyber Command and MIT Lincoln Laboratory, the company delivers realistic simulations of production environments where security teams can practice incident response, test security controls, and validate their defensive capabilities. The SimSpace Cyber Force platform creates safe, high-fidelity replicas of the systems organizations defend, allowing teams to conduct mission rehearsals and stress tests without impacting live operations. The platform incorporates AI and machine learning capabilities to simulate real-world threat scenarios and adversary behaviors. Organizations use the cyber range to assess team performance, evaluate security tool effectiveness, and optimize security spending. The company serves elite cybersecurity teams across government, critical infrastructure, and enterprise sectors. The platform supports multiple use cases including security operations center training, red team and blue team exercises, technology validation, and compliance testing. SimSpace enables organizations to measure their cyber readiness through continuous testing and adaptation in simulated environments. The company has received recognition from Gartner and Forrester for its cyber range technology and won the Security Training Innovation Award from the CyberSecurity Breakthrough Awards in 2024. SimSpace raised $45 million in equity funding in 2023, bringing total funding to nearly $70 million. The platform helps organizations understand gaps in their security posture, improve incident response capabilities, and make data-driven decisions about security investments.