General Dynamics Corp (GD)

How it makes money

Most of the revenue comes from long-term contracts with the US government, recognised as the work is performed rather than when a cheque arrives. Shipbuilding and much defence work runs on cost-reimbursable or incentive contracts, where the customer covers allowable costs and pays a fee; fixed-price contracts, common elsewhere in the group, pay an agreed amount whatever the cost turns out to be, so overruns come out of the company's own margin. The Aerospace segment is different: Gulfstream sells aircraft outright, taking deposits and recognising the sale on delivery, and then earns a long recurring stream from maintenance, parts and completions on the installed fleet. In 2025 the US government accounted for about 68% of revenue, US commercial customers 15%, non-US government 8% and non-US commercial 9%.

Revenue by segment

The hardest part to copy is not the factories but the permissions and the position. Electric Boat and Bath Iron Works are among the very few yards in the world qualified to build nuclear-powered submarines and Navy combatants, work that requires facilities, cleared workers and a decades-long track record no newcomer can assemble; the Columbia and Virginia programmes are effectively sole-source and stretch into the 2030s. Gulfstream's advantage is different: a brand in the top tier of business aviation, a certified product line and a global service network that keeps owners inside the fleet. Technologies and Combat Systems are more contestable, won and lost on competitive bids.

Three quarters of the company moves with government budgets rather than with the economy: submarines, destroyers, armoured vehicles and federal IT are funded years in advance, and the $118 billion backlog means much of the next decade's Marine Systems work is already ordered. That part behaves defensively, though it is exposed to a political cycle instead of an economic one — a change in defence priorities or a budget standoff, not a recession, is what moves it. The Aerospace segment is the cyclical quarter: business-jet orders follow corporate profits, credit conditions and confidence, and they can stall quickly when those turn.

Key risks

• Dependence on US government budgets — About two-thirds of revenue comes from the US government, so the business is tied to annual appropriations. If the budget is not approved before the government's fiscal year begins, agencies can shut down or run under a continuing resolution, which holds up funding for programmes and delays new awards. Revenue on existing multi-year contracts depends on Congress continuing to appropriate the money.
• Contract estimates and fixed-price exposure — Profit is booked against estimates of labour productivity, complexity, material costs and delivery timing made years in advance. If those estimates change or unexpected costs appear, the profitability of one or more contracts suffers. Fixed-price contracts carry a higher fee precisely because the company absorbs cost overruns within its control.
• Supply chain and supplier performance — The company relies on specialised suppliers and subcontractors, including for critical aircraft parts and submarine components. Shortages or a supplier failing to perform delay deliveries and raise costs, and on fixed-price work those costs are not passed on to the customer.
• Availability of skilled and cleared labour — Shipbuilding and classified work need welders, engineers and cleared personnel who cannot be hired quickly. Where demand for these people exceeds supply, the company faces higher pay, recruiting and training costs, and an ageing workforce or high turnover can push out schedules.
• Aerospace demand and economic conditions — Gulfstream's results depend on general economic conditions, the availability of credit, pricing pressure and trends in capital goods markets — buyers of a business jet can postpone the decision in a way a navy cannot postpone a submarine.
• International business, export controls and geopolitics — Sales outside the United States are subject to export licences, procurement rules and political sensitivities, and geopolitical instability — including the effects of the war in Ukraine — can disrupt operations and supply while also restricting what can be shipped where.
• Cybersecurity and protection of classified information — The company handles classified programmes and sensitive customer data. A breach of its systems or of a supplier's would affect operations, customer relationships and compliance with government security obligations.

Top customers account for 68% of revenue

In 2025 about 68% of revenue came from a single customer, the US government, across the Department of Defense and federal civilian agencies; US commercial customers were 15%, non-US governments 8% and non-US commercial customers 9%. Concentration on one buyer this heavy is normal for a prime defence contractor, but it means the same counterparty sets volumes, prices and payment terms across most of the group.