Diplomatic Security Foundation Competitors

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2024. Learn more at aecom.com.

G4S is the International business of Allied Universal®, the world’s leading security and facility services provider and trusted partner to more than 400 of the Fortune 500. Allied Universal® delivers unparalleled customer relationships, innovative solutions, cutting-edge smart technologies and tailored services that enable clients to focus on their core businesses. With operations in over 100 countries and territories, Allied Universal is the third largest private employer in North America and seventh in the world. Annual revenue is approximately $23 billion. There is no greater purpose and responsibility than serving and helping to safeguard customers, communities and people. For more information, visit g4s.com.

About Us: At MANTECH, we believe national security demands more than technology—it requires an unwavering dedication to the mission and the warfighters who defend it. For nearly 60 years, we have considered our work a matter of public trust, engineering the strategic advantage needed to secure the nation, protect our communities, and advance global health care. The modern battlespace is complex, volatile, and deeply interconnected. When federal managers, intelligence professionals, and military leaders face unrelenting operational hurdles, they don’t need a vendor. They need a trusted advisor who has navigated these high-stakes environments before. We bring battle-tested credibility and a sense of urgency to every challenge, helping our heroes overcome their toughest battles to achieve ultimate success. Engineered for Mission Success: We continually innovate to deliver high-tech solutions across the Defense & Space, Intelligence & Homeland Security, and Commercial sectors: * Cyberspace Superiority: Full-spectrum operations built to anticipate aggressive digital threats, secure critical supply chains, and dominate the domain. * Data and Artificial Intelligence (AI): Transforming fragmented data into near real-time, actionable insights that accelerate decision-making at the tactical edge. * Digital Modernization & Systems Engineering: Utilizing Agile DevSecOps and advanced digital twinning to build resilient, cloud-native architectures from the ground up. Powered by Mission-First Talent: Our depth is rooted in the people who live the mission firsthand. Comprised of more than 9,000 talented employees around the world, nearly 40% of our workforce are veterans. Many others join us directly from the Intelligence Community, Homeland Security, and commercial agencies. We understand your challenges because we know your world firsthand. MANTECH | Always Advancing