| Rank | Company | Operating income | Sector | Industry | Country | Exchange |
|---|---|---|---|---|---|---|
| 1 | $27.0B | Industrials | Specialty Business Services | United States | NYSE | |
| 2 | $20.5B | Industrials | Specialty Business Services | United States | NYSE | |
| 3 | $11.4B | Industrials | Specialty Business Services | United States | NYSE | |
| 4 | $6.70B | Industrials | Specialty Business Services | United States | NYSE | |
| 5 | $5.95B | Industrials | Specialty Business Services | United States | Nasdaq | |
| 6 | $4.66B | Industrials | Specialty Business Services | United States | Nasdaq | |
| 7 | $2.91B | Industrials | Specialty Business Services | United States | Nasdaq | |
| 8 | $2.46B | Industrials | Specialty Business Services | United States | Nasdaq | |
| 9 | $2.20B | Industrials | Specialty Business Services | United States | NYSE | |
| 10 | $1.92B | Industrials | Specialty Business Services | United States | NYSE | |
| 11 | $1.86B | Industrials | Specialty Business Services | United States | NYSE | |
| 12 | $1.30B | Industrials | Specialty Business Services | United States | NYSE | |
| 13 | $1.27B | Industrials | Specialty Business Services | United States | NYSE | |
| 14 | $1.24B | Industrials | Specialty Business Services | United States | NYSE | |
| 15 | $778M | Industrials | Specialty Business Services | United States | NYSE | |
| 16 | $712M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 17 | $711M | Industrials | Specialty Business Services | United States | NYSE | |
| 18 | $642M | Industrials | Specialty Business Services | United States | NYSE | |
| 19 | $596M | Industrials | Specialty Business Services | United States | NYSE | |
| 20 | $588M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 21 | $579M | Industrials | Specialty Business Services | United States | NYSE | |
| 22 | $456M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 23 | $388M | Industrials | Specialty Business Services | United States | NYSE | |
| 24 | $364M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 25 | $351M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 26 | $333M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 27 | $215M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 28 | $204M | Industrials | Specialty Business Services | United States | NYSE | |
| 29 | $171M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 30 | $138M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 31 | $112M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 32 | $103M | Industrials | Specialty Business Services | United States | NYSE | |
| 33 | $84.4M | Industrials | Specialty Business Services | United States | NYSE | |
| 34 | $77.0M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 35 | $44.1M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 36 | $39.3M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 37 | $35.4M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 38 | $34.5M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 39 | $32.5M | Industrials | Specialty Business Services | United States | NYSE | |
| 40 | $20.5M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 41 | $17.1M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 42 | $12.5M | Industrials | Specialty Business Services | United States | NYSE | |
| 43 | $10.9M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 44 | $6.05M | Industrials | Specialty Business Services | United States | NYSE | |
| 45 | $3.59M | Industrials | Specialty Business Services | United States | Nasdaq | |
| 46 | $3.01M | Industrials | Specialty Business Services | United States | Nasdaq |