| Rank | Company | Market cap | Sector | Industry | Country | Exchange |
|---|---|---|---|---|---|---|
| 1 | $37.2B | Industrials | Professional Services | United States | Nasdaq | |
| 2 | $15.3B | Industrials | Professional Services | United States | NYSE | |
| 3 | $14.3B | Industrials | Professional Services | United States | NYSE | |
| 4 | $12.3B | Industrials | Professional Services | United States | NYSE | |
| 5 | $10.2B | Industrials | Professional Services | United States | NYSE | |
| 6 | $8.77B | Industrials | Professional Services | United States | NYSE | |
| 7 | $8.55B | Industrials | Professional Services | United States | Nasdaq | |
| 8 | $7.74B | Industrials | Professional Services | United States | NYSE | |
| 9 | $7.65B | Industrials | Professional Services | United States | NYSE | |
| 10 | $5.83B | Industrials | Professional Services | United States | NYSE | |
| 11 | $4.77B | Industrials | Professional Services | United States | Nasdaq | |
| 12 | $3.88B | Industrials | Professional Services | United States | NYSE | |
| 13 | $3.32B | Industrials | Professional Services | United States | Nasdaq | |
| 14 | $2.63B | Industrials | Professional Services | United States | Nasdaq | |
| 15 | $2.22B | Industrials | Professional Services | United States | NYSE | |
| 16 | $2.06B | Industrials | Professional Services | United States | Nasdaq | |
| 17 | $2.00B | Industrials | Professional Services | United States | Nasdaq | |
| 18 | $1.56B | Industrials | Professional Services | United States | Nasdaq | |
| 19 | $1.14B | Industrials | Professional Services | United States | Nasdaq | |
| 20 | $742M | Industrials | Professional Services | United States | Nasdaq | |
| 21 | $659M | Industrials | Professional Services | United States | NYSE | |
| 22 | $568M | Industrials | Professional Services | United States | Nasdaq | |
| 23 | $521M | Industrials | Professional Services | United States | Nasdaq | |
| 24 | $481M | Industrials | Professional Services | United States | NYSE | |
| 25 | $448M | Industrials | Professional Services | United States | NYSE | |
| 26 | $329M | Industrials | Professional Services | United States | Nasdaq | |
| 27 | $281M | Industrials | Professional Services | United States | Nasdaq | |
| 28 | $277M | Industrials | Professional Services | United States | Nasdaq | |
| 29 | $273M | Industrials | Professional Services | United States | Nasdaq | |
| 30 | $222M | Industrials | Professional Services | United States | Nasdaq | |
| 31 | $205M | Industrials | Professional Services | United States | NYSE | |
| 32 | $152M | Industrials | Professional Services | United States | Nasdaq | |
| 33 | $117M | Industrials | Professional Services | United States | Nasdaq | |
| 34 | $91.8M | Industrials | Professional Services | United States | Nasdaq | |
| 35 | $80.0M | Industrials | Professional Services | United States | NYSE | |
| 36 | $58.0M | Industrials | Professional Services | United States | NYSE | |
| 37 | $47.7M | Industrials | Professional Services | United States | Nasdaq | |
| 38 | $36.9M | Industrials | Professional Services | United States | Nasdaq | |
| 39 | $31.3M | Industrials | Professional Services | United States | Nasdaq | |
| 40 | $17.6M | Industrials | Professional Services | United States | NYSE | |
| 41 | $16.1M | Industrials | Professional Services | United States | Nasdaq | |
| 42 | $15.4M | Industrials | Professional Services | United States | Nasdaq | |
| 43 | $11.0M | Industrials | Professional Services | United States | Nasdaq | |
| 44 | $10.3M | Industrials | Professional Services | United States | Nasdaq | |
| 45 | $9.80M | Industrials | Professional Services | United States | Nasdaq | |
| 46 | $8.83M | Industrials | Professional Services | United States | Nasdaq | |
| 47 | $4.85M | Industrials | Professional Services | United States | Nasdaq | |
| 48 | $0.22M | Industrials | Professional Services | United States | Nasdaq | |
| 49 | $0.02M | Industrials | Professional Services | United States | Nasdaq | |
| 50 | Industrials | Professional Services | United States | Nasdaq | ||
| 51 | Industrials | Professional Services | United States | NYSE | ||
| 52 | Industrials | Professional Services | United States | Nasdaq | ||
| 53 | Industrials | Professional Services | United States | Nasdaq | ||
| 54 | Industrials | Professional Services | United States | Nasdaq | ||
| 55 | Industrials | Professional Services | United States | Nasdaq |