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U.S. military and intelligence agencies hire Northrop Grumman to develop and deliver equipment and keep it operating. Its work includes the B-21 and F-35 aircraft programs, missile defenses, radar and communications systems, and satellites. The U.S. government supplies most of its revenue, both through direct contracts and work performed for other contractors. International customers provide a smaller source of business, including military purchases arranged through the U.S. government.
Customers pay under two main contract models. Some reimburse allowable costs and add a fee; others set a price for specified work. Under fixed-price contracts, unexpected costs generally fall on Northrop Grumman, making cost control and delivery performance central to profitability. The company also earns revenue from maintaining and modernizing systems already in service.
The business depends heavily on U.S. defense priorities and annual congressional funding. The government can stop work or terminate contracts. Procurement rules govern which costs it will reimburse, while international sales depend on U.S. export authorizations that can be denied or revoked.
The risk section is the longest, dullest part of the filing. This keeps only what can really hurt you: where it hits, how hard, when it plays out.
Every company claims an edge. Each one is checked against hard numbers like margins and returns: which hold, and which line gives way first.
Lockheed Martin and Northrop Grumman compete for U.S. agency and allied orders to develop and sustain military aircraft, missiles and spacecraft. Lockheed Martin’s awards in those businesses show where their shared customers are directing spending.
L3Harris competes with Northrop Grumman to supply government defense customers with mission electronics, communications, space systems and rocket propulsion, putting both in the path of spending on these capabilities.
RTX competes with Northrop Grumman for defense customers’ missile, missile-defense and sensing orders. Watch those businesses rather than RTX’s commercial aircraft equipment and replacement-parts sales when judging the competitive pressure on Northrop.
General Dynamics competes with Northrop Grumman to sell weapons, munitions and mission technologies to defense customers. Its Combat Systems and Technologies results are closer comparisons for Northrop than its shipbuilding or business-jet businesses.
Boeing’s Defense, Space & Security business competes with Northrop Grumman for government military-aircraft and space programs. Its awards in that business are the relevant comparison, not commercial jets sold to airlines.
Leonardo DRS, Inc. and Northrop Grumman supply overlapping sensing, electronic-warfare and ship-propulsion technologies to U.S. national-security customers and allied forces. DRS’s sensing and naval-propulsion business offers a focused comparison for Northrop’s Mission Systems.
Elbit Systems competes with Northrop Grumman to supply military customers with sensors, electronic warfare, systems that connect communications, intelligence and command, unmanned aircraft and weapons. Its military sensing and electronic-warfare orders offer a comparison for Northrop’s Mission Systems demand.
Space Exploration Technologies (SpaceX) competes with Northrop Grumman to carry satellites and other payloads into space for government and commercial customers. Watch its launch prices and mission reliability for the competitive pressure on Northrop’s launch business.
Rocket Lab both competes with Northrop Grumman for launch customers and sells space products or services to Northrop’s Space Systems business. Northrop accounted for 13% of Rocket Lab’s revenue in 2023 and less than 10% in each of 2024 and 2025, making sales to that customer a direct measure of their supplier tie.
Kratos overlaps with Northrop Grumman in unmanned aircraft, propulsion, hypersonic vehicles and systems used to command and control satellites for military customers. Its orders for drones, rocket motors and satellite ground systems help track spending in those shared markets.
AeroVironment competes with Northrop Grumman to supply military customers with unmanned aircraft, counter-drone systems and electronic warfare. Its awards in those markets are worth watching because most of its products and services are sold under U.S. government contracts, most of which are competitively bid.
Huntington Ingalls Industries builds ships and submarines for the U.S. Navy, whose procurement supports demand for Northrop Grumman’s maritime power, propulsion and payload-launch systems. Watch its Navy shipbuilding orders alongside Northrop’s submarine work, which brought $1.3 billion in Virginia Class awards in 2025.
Leidos competes with Northrop Grumman for government national-security technology and defense-system contracts, but has greater exposure to services and civil agencies. Its National Security & Digital and Defense Systems results are more relevant comparisons for Northrop than its Health & Civil business.
Firefly Aerospace is Northrop Grumman’s exclusive partner in developing the Eclipse medium-launch vehicle, combining Firefly’s Alpha and Northrop’s Antares technologies with a $50 million Northrop equity investment. Eclipse development news is the direct link to Northrop’s business serving government and commercial launch customers.
Mercury Systems Inc. supplies Northrop Grumman with electronics that process defense-system signals and data; Northrop accounted for 10% of Mercury’s fiscal 2026 revenue. Mercury’s sales to Northrop offer a direct view of purchasing along this electronics supply chain, though program timing can make customer sales fluctuate from year to year.
Northrop Grumman Corp. earningsThis company
Northrop Grumman’s report will show whether contract costs are still squeezing profit, especially whether Aeronautics can hold its margin.
Read Aeronautics sales alongside its margin, and watch revisions to estimated costs at contract completion. Rising sales with a steady margin and no larger unfavorable adjustments would suggest Northrop is controlling costs as it performs the work; a falling margin or new loss provisions would point to costs outrunning what the contracts can cover, with B-21 work a key area to watch.
RTX Corporation earningsRTX
RTX’s report will show how orders are moving in missiles, missile defense and sensing, where it competes with Northrop Grumman for defense customers.
Watch orders and backlog in RTX’s relevant businesses, not commercial aircraft equipment or replacement parts. Stronger orders would show customers still spending in overlapping markets and a competitor with substantial work; weaker orders would suggest softer demand, but would not by themselves show that Northrop lost an order.
Lockheed Martin Corp. earningsLMT
Lockheed Martin’s report will show how much work U.S. agencies and allied customers are placing in military aircraft, missiles and spacecraft markets it shares with Northrop Grumman.
Watch Lockheed Martin’s new orders and backlog in military aircraft, missile and space businesses. More relevant awards would show shared customers placing funded work in these markets, while also confirming competition for Northrop; fewer would suggest slower new buying, not prove that the budget went to a particular rival.
Fed Interest Rate Decision
Northrop Grumman’s long-term U.S. government contracts and cash generation limit the direct link, but Fed decisions influence borrowing costs across the economy and can affect what it pays when it borrows.
Expected4.0%Last release4.0%
If it comes in above expectations
If the Fed sets a higher rate than expected, borrowing costs could rise on new debt or debt that reprices, increasing financing costs for the company; its long-term contracts do not make those costs automatically recoverable.
If it comes in below expectations
If the Fed sets a lower rate than expected, borrowing costs could ease on new debt or debt that reprices, reducing financing costs if the company borrows.
Huntington Ingalls Industries, Inc. earningsHII
Huntington Ingalls’ report will show whether Navy ship orders are strengthening, a demand signal for maritime systems that Northrop Grumman also supplies.
Watch Huntington Ingalls’ Navy shipbuilding orders and backlog, with Northrop Grumman’s $1.3 billion of Virginia Class awards in 2025 as context. Stronger ship orders would point to active Navy procurement that can support demand for ship-related systems; weaker orders would soften that signal, but shipbuilding awards are not Northrop awards.
Space Exploration Technologies Corp. earningsSPCX
SpaceX’s report will show how its launch prices and mission reliability shape the competition for government and commercial launches that Northrop Grumman also serves.
Read launch prices alongside mission reliability. Lower prices with reliable missions make it easier for customers to choose SpaceX, raising the pressure on Northrop Grumman to compete on launch cost and execution; higher prices or reliability setbacks would ease that pressure, but would not guarantee customers choose Northrop.
Rocket Lab Corporation earningsRKLB
If Rocket Lab reports sales to Northrop Grumman, its report will directly show how business from this launch and space-products supplier is changing.
If Rocket Lab reports sales to Northrop Grumman, compare them with prior periods. Higher sales mean more purchasing dollars flowed to this supplier; lower sales may indicate slower buying, but program timing can move the figure, so one report alone cannot establish a lasting change in the relationship.
Firefly Aerospace Inc. earningsFLY
Firefly Aerospace’s report will offer an update on Eclipse, the medium-launch vehicle it is developing with Northrop Grumman.
Watch Firefly’s updates on Eclipse development and any obstacles. Progress would show the partners advancing a launch capability for government and commercial customers; delays or technical problems could push that capability further out and raise execution risk for Northrop as partner and investor.
Mercury Systems Inc. earningsMRCY
If Mercury Systems reports sales to Northrop Grumman, its report will show how much defense-electronics purchasing is flowing to this supplier.
If Mercury Systems reports sales to Northrop Grumman, compare them with prior periods. Higher sales mean more Northrop purchasing flowed to this electronics supplier; lower sales may signal slower buying, but program timing can cause swings, so read the figure with the company’s explanation before judging the strength of the purchasing signal.
