Sagewind Capital, a middle-market, private equity firm, completed the investment Sigma Defense Systems, a provider of airborne intelligence, surveillance, and reconnaissance sensor data transport engineering and services. Financial terms were not disclosed. “We are very excited to partner with the Sigma Defense team, building on our extensive experience investing in and supporting government services businesses. Sigma Defense has an excellent track record and reputation delivering high-impact, mission-critical tactical relay data transport services to the US military so that intelligence analysts can continue to work with real-time information and solve various problems," Steven Lefkowitz, Sagewind Managing Partner.