Sigma Defense Tapped to Develop SUNet 2.0 Prototype for Secure AI and Mission Software Modernization

## Sigma Defense Selected for SUNet 2.0 Secure Network Prototype Sigma Defense, a Perry, Georgia-based provider of mission-critical software, communications, and C5ISR systems, has been awarded a contract to deliver a SUNet 2.0 (Secure Unclassified Network) prototype under an Other Transaction Authority (OTA) agreement, the company announced on July 23, 2026. The selection positions Sigma Defense at the forefront of efforts to modernize secure communications infrastructure for the Department of War, with a particular focus on enabling artificial intelligence applications and next-generation mission software in operationally sensitive environments. According to PR Newswire, the SUNet 2.0 initiative represents a significant step in the broader push to integrate AI-driven capabilities into defense networks while maintaining rigorous security standards. The prototype phase is expected to demonstrate how unclassified but operationally sensitive data can be managed, processed, and acted upon with greater speed and reliability than legacy systems currently allow. For the maritime defense sector, developments of this nature carry direct relevance. Naval and coast guard operations increasingly depend on secure, high-bandwidth networks to support autonomous systems, unmanned surface and underwater vehicles, and real-time situational awareness platforms. Modernized secure unclassified networks underpin the data-sharing architecture that connects shipboard systems, shore-based command infrastructure, and allied partners. Sigma Defense's C5ISR expertise — spanning command, control, communications, computers, combat systems, intelligence, surveillance, and reconnaissance — makes the company a notable player in naval technology modernization efforts. The company's selection under an OTA mechanism reflects the defense establishment's preference for agile acquisition pathways when developing and testing emerging technologies. No contract value was disclosed in the announcement. Further details on the SUNet 2.0 prototype timeline and evaluation criteria are expected as the program advances through its development phase.