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| Rank | Industry | Percentage Point Increase | Market Size | Businesses | Employees |
|---|---|---|---|---|---|
| 1 | Commercial Auto Insurance in the US | 6.5pp | $80.1bn | 339 | 80,793 |
| 2 | Tax Preparation Services in the US | 4.7pp | $14.3bn | 124,698 | 238,141 |
| 3 | Tax Preparation Software Developers in the US | 3.4pp | $5.5bn | 154 | 10,899 |
| 4 | Security Software Publishing in the US | 3.1pp | $77.8bn | 2,096 | 148,319 |
| 5 | Postal Service in the US | 2.8pp | $91.9bn | 1 | 637,983 |
| 6 | Space Vehicle & Missile Manufacturing in the US | 2.1pp | $46.2bn | 106 | 73,301 |
| 7 | Health & Welfare Funds in the US | 2.1pp | $57.1bn | 1,162 | 17,841 |
| 8 | Unmanned Aerial Vehicle (UAV) Manufacturing in the US | 1.8pp | $3.7bn | 49 | 9,254 |
| 9 | Cigarette & Tobacco Manufacturing in the US | 1.8pp | $64.2bn | 191 | 10,587 |
| 10 | Biometrics Scan Software in the US | 1.7pp | $12.9bn | 399 | 23,859 |
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The industry with the biggest increase in profit margin in the United States in 2026 is Commercial Auto Insurance, with a 6.5pp percentage point increase for 2026. This ranking is based on data compiled by IBISWorld industry analysts.
The top three industries with the biggest increase in profit margin in the United States in 2026 are Commercial Auto Insurance, Tax Preparation Services and Tax Preparation Software Developers. Rankings are updated using IBISWorld data.