| Rank | Company | Revenue | Sector | Industry | Country | Exchange |
|---|---|---|---|---|---|---|
| 1 | $6.60B | Industrials | Professional Services | United States | Nasdaq | |
| 2 | $5.07B | Industrials | Professional Services | United States | Nasdaq | |
| 3 | $3.84B | Industrials | Professional Services | United States | Nasdaq | |
| 4 | $1.82B | Industrials | Professional Services | United States | Nasdaq | |
| 5 | $1.40B | Industrials | Professional Services | United States | Nasdaq | |
| 6 | $1.36B | Industrials | Professional Services | United States | Nasdaq | |
| 7 | $766M | Industrials | Professional Services | United States | Nasdaq | |
| 8 | $742M | Industrials | Professional Services | United States | Nasdaq | |
| 9 | $639M | Industrials | Professional Services | United States | Nasdaq | |
| 10 | $632M | Industrials | Professional Services | United States | Nasdaq | |
| 11 | $528M | Industrials | Professional Services | United States | Nasdaq | |
| 12 | $381M | Industrials | Professional Services | United States | Nasdaq | |
| 13 | $287M | Industrials | Professional Services | United States | Nasdaq | |
| 14 | $250M | Industrials | Professional Services | United States | Nasdaq | |
| 15 | $193M | Industrials | Professional Services | United States | Nasdaq | |
| 16 | $76.6M | Industrials | Professional Services | United States | Nasdaq | |
| 17 | $24.7M | Industrials | Professional Services | United States | Nasdaq | |
| 18 | $10.4M | Industrials | Professional Services | United States | Nasdaq | |
| 19 | $9.57M | Industrials | Professional Services | United States | Nasdaq | |
| 20 | $2.00M | Industrials | Professional Services | United States | Nasdaq |