| 1 | WAT | Waters Corporation | 5.14% |
| 2 | A | Agilent Technologies, Inc. | 4.53% |
| 3 | IDXX | IDEXX Laboratories, Inc. | 4.32% |
| 4 | FERG | Ferguson Enterprises Inc. | 4.25% |
| 5 | IEX | IDEX Corporation | 4.08% |
| 6 | XYL | Xylem Inc. | 4.02% |
| 7 | MLI | Mueller Industries, Inc. | 4.02% |
| 8 | ECL | Ecolab Inc. | 3.94% |
| 9 | PNR | Pentair plc | 3.91% |
| 10 | VLTO | Veralto Corporation | 3.82% |
| 11 | AWK | American Water Works Company, Inc. | 3.65% |
| 12 | MAS | Masco Corporation | 3.34% |
| 13 | WMS | Advanced Drainage Systems, Inc. | 3.26% |
| 14 | TSX: STN | Stantec Inc. | 3.14% |
| 15 | ROP | Roper Technologies, Inc. | 3.09% |
| 16 | CNM | Core & Main, Inc. | 3.07% |
| 17 | TTEK | Tetra Tech, Inc. | 3.01% |
| 18 | WTRG | Essential Utilities, Inc. | 2.98% |
| 19 | ACM | AECOM | 2.73% |
| 20 | VMI | Valmont Industries, Inc. | 2.35% |
| 21 | TSX: AQN | Algonquin Power & Utilities Corp. | 2.18% |
| 22 | PRMB | Primo Brands Corporation | 2.18% |
| 23 | WTS | Watts Water Technologies, Inc. | 2.11% |
| 24 | FBIN | Fortune Brands Innovations, Inc. | 2.06% |
| 25 | ZWS | Zurn Elkay Water Solutions Corporation | 2.05% |
| View FIW holdings |