Largest Big Contracts by Value in 2025
In 2025, the biggest big contracts span defense, cloud infrastructure, and energy, with several single awards exceeding $10 billion. The U.S. Department of Defense continues to dominate federal procurement, awarding multi-billion-dollar IDIQ contracts for weapons systems, satellite communications, and logistics support. On the commercial side, hyperscalers such as Amazon Web Services, Microsoft Azure, and Google Cloud secure massive enterprise and government agreements that shape global IT spending. These deals are often structured as indefinite-delivery/indefinite-quantity vehicles to give agencies flexibility over multi-year periods. For a breakdown of recent federal contract spending trends, see the U.S. General Services Administration data on federal procurement.
Private-sector megadeals also feature prominently, with aerospace and defense primes such as Lockheed Martin, Boeing, Northrop Grumman, and RTX landing large-platform contracts for fighter jets, missiles, and space systems. In parallel, electric-vehicle and clean-energy companies like Tesla and SpaceX negotiate substantial supply and launch service agreements that influence their production and mission timelines. Tesla's 2025 supply-chain contracts with battery and raw-material suppliers help underpin its global factory expansion, while SpaceX's launch services agreements with the U.S. Space Force and commercial satellite operators remain a core revenue driver. These big contracts often include performance-based pricing, milestone payments, and long-term volume commitments.
Key Sectors Driving Big Contract Activity
Defense and National Security
The defense sector remains the single largest source of big contracts, with the U.S. Department of Defense, NATO allies, and allied governments issuing major solicitations for advanced weapons, cybersecurity, and intelligence systems. In 2025, hypersonic missile defense, next-generation combat vehicles, and secure communications platforms account for a growing share of award values. The U.S. Defense Innovation Unit and other acquisition reform bodies continue to push for streamlined contracting processes to accelerate delivery timelines.
Technology and Cloud Infrastructure
Cloud and enterprise software companies compete for big contracts that underpin digital transformation across government and industry. The JEDI and successor programs, along with multi-cloud enterprise agreements, have pushed providers to offer integrated AI, security, and hybrid-cloud capabilities. These deals often run five to ten years and include strict compliance requirements around data sovereignty, cybersecurity maturity, and continuous modernization.
How Companies Win and Manage Big Contracts
Proposal Strategy and Capture
Winning a big contract typically requires a structured capture process that begins years before a solicitation is published. Companies invest in relationship-building with agency procurement offices, technical teams, and program executives to understand requirements early and shape the statement of work. Winning teams often form teaming agreements, leveraging complementary capabilities across systems integration, software development, and mission support.
Execution, Compliance, and Risk Management
Once awarded, contractors must manage complex performance timelines, cost controls, and regulatory compliance across multiple geographies and supply chains. Earned-value management, milestone-based payments, and robust quality assurance are standard tools for tracking progress on big contracts. Companies also use advanced analytics and digital platforms to monitor subcontractor performance, manage risk, and ensure deliverables meet government or enterprise standards.