A ranked look at the ten biggest publicly traded U.S. aircraft and components makers by market capitalization in 2026, from jet engines to attack drones.
Why This Industry Carries Weight
Few sectors touch American life as broadly as Aircraft & Components. Every commercial flight, military jet, and cargo plane depends on a supply chain of engines, avionics, fasteners, and airframes built largely by companies headquartered on U.S. soil. The ten firms below, ranked by market capitalization from the latest 2026 market-data refresh, show just how much scale and diversity exists within this single corner of Aerospace & Defense.
The Top Two Giants
RTX Corp Leads the Pack
RTX Corp sits at the top with a market cap of $243.7 billion. Headquartered in Arlington, Virginia, the company posted $88.6 billion in revenue for fiscal year 2025, reflecting its sprawling footprint across engines, defense systems, and avionics.
Boeing Holds Second Place
Boeing Co, also based in Arlington, Virginia, ranks second with a $169.8 billion market cap. Its FY2025 revenue of $89.5 billion — slightly ahead of RTX's — underscores its position as one of the world's best-known commercial and defense aircraft manufacturers.
Mid-Tier Powerhouses
Honeywell's Diversified Reach
Honeywell International Inc, headquartered in Charlotte, North Carolina, comes in third with a market cap of $135.6 billion and FY2025 revenue of $37.4 billion. Its scale reflects a business that spans aerospace components alongside broader industrial technology.
TransDigm's Specialized Parts Business
TransDigm Group INC, based in Cleveland, Ohio, ranks fourth at a $69.3 billion market cap, with FY2025 revenue of $8.8 billion. The company has built its position around highly engineered aircraft components.
Heico's Steady Climb
Heico Corp, headquartered in Hollywood, Florida, holds fifth place with a $46.3 billion market cap and FY2025 revenue of $4.5 billion, making it one of the more compact yet significant players on this list.
The Middle of the Field
Elbit Systems' Global Footprint
Elbit Systems Ltd ranks sixth with a market cap of $38.6 billion and FY2025 revenue of $7.9 billion, reflecting a substantial presence in defense and aerospace technology.
Arxis Enters the Rankings
Arxis, Inc., headquartered in Bloomfield, Connecticut, takes seventh place with a $16.2 billion market cap. Its FY2026 revenue of $458.9 million is the smallest on this list by dollar figure, yet its market valuation places it solidly among the top ten.
Textron's Broad Portfolio
Textron Inc, based in Providence, Rhode Island, ranks eighth with a $15.8 billion market cap and FY2026 revenue of $14.8 billion — among the highest revenue figures on the list relative to its market cap.
Rounding Out the Top Ten
Embraer's International Presence
Embraer S.A. sits in ninth place with a market cap of $10.1 billion, representing the list's most globally recognized regional and commercial jet manufacturer outside the top tier.
AeroVironment Closes the List
AeroVironment Inc, headquartered in Arlington, Virginia, rounds out the ranking at tenth with a $9.4 billion market cap. Its FY2018 revenue of $271.1 million is the oldest figure cited here, reflecting the company's smaller, specialized scale compared to the giants above it.
What the Ranking Reveals
Taken together, this list shows an industry anchored by a handful of massive, diversified defense-and-aerospace conglomerates at the top, with a long tail of more specialized component and systems makers filling out the rest of the field.
