SimSpace Corporation

SimSpace Corporation, founded in 2015, builds cyber range platforms for organisations that need to rehearse, train and test before real attacks occur. Its SimSpace Cyber Range Platform creates hyper-realistic simulated environments in which security teams conduct continuous mission rehearsal, train individuals and groups, test tools and AI agents, and validate entire security postures. The approach is designed around continuous readiness rather than periodic drills, allowing teams to fail, learn and adapt in conditions where no production systems are at risk.

The company's technical work spans cyber range simulation, adversary emulation, AI threat simulation and security posture validation. Its platform supports mission rehearsal and training environments as well as AI agent testing, reflecting a growing demand among defenders for controlled settings in which automated tools can be assessed against realistic threats.

SimSpace serves government, critical infrastructure and enterprise customers, and operates in the United States. The company was founded by alumni of U.S. Cyber Command and MIT's Lincoln Laboratory, and describes its engineering culture in terms of military-grade technology and rigour. Its market position has been recognised by Gartner and Forrester.