Constellis
Security and InvestigationsVirginia, United States5001-10000 Employees
Constellis is a security and risk-management firm that provides end-to-end risk management and humanitarian solutions to protect people and infrastructure globally. Its offerings address evolving security threats and complex operating environments, enabling safe operations and continuity for its customers and partners. The company emphasizes ethical decision-making and a problem-solving approach in its work. Based in Herndon, Virginia, the firm operates globally with a sizable workforce. In February 2026, Daniel Gelston was named chief executive officer. Its public materials describe the business as providing global risk management and mission-critical support services.