| 1 | IDXX | IDEXX Laboratories, Inc. | 5.60% |
| 2 | FERG | Ferguson Enterprises Inc. | 4.71% |
| 3 | XYL | Xylem Inc. | 4.10% |
| 4 | VLTO | Veralto Corporation | 4.03% |
| 5 | AWK | American Water Works Company, Inc. | 4.02% |
| 6 | ACM | AECOM | 3.91% |
| 7 | ECL | Ecolab Inc. | 3.82% |
| 8 | TSX: STN | Stantec Inc. | 3.60% |
| 9 | PNR | Pentair plc | 3.59% |
| 10 | CNM | Core & Main, Inc. | 3.52% |
| 11 | MAS | Masco Corporation | 3.44% |
| 12 | ROP | Roper Technologies, Inc. | 3.39% |
| 13 | WTRG | Essential Utilities, Inc. | 3.37% |
| 14 | A | Agilent Technologies, Inc. | 3.35% |
| 15 | WMS | Advanced Drainage Systems, Inc. | 3.33% |
| 16 | MLI | Mueller Industries, Inc. | 3.16% |
| 17 | WAT | Waters Corporation | 2.78% |
| 18 | IEX | IDEX Corporation | 2.66% |
| 19 | FBIN | Fortune Brands Innovations, Inc. | 2.40% |
| 20 | TTEK | Tetra Tech, Inc. | 2.37% |
| 21 | ZWS | Zurn Elkay Water Solutions Corporation | 2.35% |
| 22 | PRMB | Primo Brands Corporation | 2.35% |
| 23 | WTS | Watts Water Technologies, Inc. | 2.33% |
| 24 | TSX: AQN | Algonquin Power & Utilities Corp. | 2.23% |
| 25 | ITRI | Itron, Inc. | 2.14% |
| View FIW holdings |