Largest aerospace and defense companies by market cap: 29 companies with a combined market value of $1.035 T. RTX Corporation (RTX) leads at $238.92 B. Aircraft manufacturers, defense contractors, and guided-missile makers ranked by market value. Rankings update as fresh market data lands; click any company for its financial statements, charts, and SEC filing history.
| Rank | Company | Industry | Market Cap |
|---|---|---|---|
| 1 | Aircraft Engines & Engine Parts | $238.92 B | |
| 2 | Aircraft | $164.76 B | |
| 3 | Aircraft Engines & Engine Parts | $130.47 B | |
| 4 | Guided Missiles & Space Vehicles & Parts | $121.05 B | |
| 5 | Aircraft Parts & Auxiliary Equipment, NEC | $67.81 B | |
| 6 | Guided Missiles & Space Vehicles & Parts | $60.80 B | |
| 7 | Aircraft Engines & Engine Parts | $49.03 B | |
| 8 | Aircraft Parts & Auxiliary Equipment, NEC | $38.03 B | |
| 9 | Ordnance & Accessories, (No Vehicles/Guided Missiles) | $36.08 B | |
| 10 | AArxis, Inc.ARXS | Aircraft Parts & Auxiliary Equipment, NEC | $19.37 B |
| 11 | Aircraft & Parts | $15.88 B | |
| 12 | Guided Missiles & Space Vehicles & Parts | $10.28 B | |
| 13 | Aircraft | $8.72 B | |
| 14 | Aircraft | $8.64 B | |
| 15 | SStandardAero, Inc.SARO | Aircraft Engines & Engine Parts | $8.24 B |
| 16 | Guided Missiles & Space Vehicles & Parts | $6.75 B | |
| 17 | KKarman Holdings Inc.KRMN | Aircraft Parts & Auxiliary Equipment, NEC | $6.08 B |
| 18 | LLoar Holdings Inc.LOAR | Aircraft Parts & Auxiliary Equipment, NEC | $6.07 B |
| 19 | Guided Missiles & Space Vehicles & Parts | $5.36 B | |
| 20 | Aircraft & Parts | $4.67 B | |
| 21 | AAEVEX Corp.AVEX | Aircraft | $4.40 B |
| 22 | BBETA Technologies, Inc.BETA | Aircraft | $4.17 B |
| 23 | Aircraft | $3.84 B | |
| 24 | YYork Space Systems, Inc.YSS | Guided Missiles & Space Vehicles & Parts | $3.58 B |
| 25 | Guided Missiles & Space Vehicles & Parts | $2.96 B | |
| 26 | VVoyager Technologies, Inc.VOYG | Guided Missiles & Space Vehicles & Parts | $2.93 B |
| 27 | Aircraft Parts & Auxiliary Equipment, NEC | $2.67 B | |
| 28 | Aircraft Parts & Auxiliary Equipment, NEC | $2.32 B | |
| 29 | Aircraft | $895.14 M |
Industry membership comes from each company's SEC-registered SIC classification, parsed from EDGAR submissions. Market capitalizations refresh continuously from cached market data combined with SEC-reported share counts. See the full market cap rankings or the IPO filings tracker.