| Sharma, Chandra | President and Chief Executive Officer | Executive and senior leadership | $280,742 | $405 | 2025 |
| McCormack, Kellie | Senior Director, Watershed Management and Climate Change | Other disclosed roles | $188,050 | $443 | 2025 |
| Ramirez, Plezzie | Director, Human Resources | Human resources, labour relations and total rewards | $171,152 | $443 | 2025 |
| Machan, Craig | Director, Parks and Operations | Corporate administration and operations | $168,170 | $443 | 2025 |
| Young, Winston | Chief Financial Officer | Executive and senior leadership | $160,493 | $350 | 2025 |
| Brenner, Janette | Senior Manager, Water Resource Engineering | Engineering, planning and infrastructure | $144,535 | $374 | 2025 |
| Beckett, Garner | Executive Director, Conservation Halton Foundation | Executive and senior leadership | $144,378 | $413 | 2025 |
| Leeming, Andrew | Senior Manager, Programs and Services | Corporate administration and operations | $142,487 | $408 | 2025 |
| Keller, Martin | Senior Manager, Watershed Planning and Source Protection | Corporate administration and operations | $140,995 | $404 | 2025 |
| Barrett, Kim | Senior Specialist, Research and Sustainability | Academic and research | $137,544 | $388 | 2025 |
| Silva, Justin | Senior Manager Operations | Corporate administration and operations | $137,207 | $395 | 2025 |
| Priddle, Charles | Senior Manager, Regulations and Coastal Management Program | Corporate administration and operations | $137,091 | $388 | 2025 |
| Farmer, Glenn | Manager, Flood Forecasting | Corporate administration and operations | $136,025 | $377 | 2025 |
| Matich, Lesley | Manager, Science and Monitoring | Corporate administration and operations | $130,525 | $377 | 2025 |
| Mayes, Amy | Program Manager, Flood Hazard Mapping | Corporate administration and operations | $130,368 | $368 | 2025 |
| Scott, Linda | Manager, Visitor Experience | Corporate administration and operations | $130,125 | $377 | 2025 |
| Huson, Diana | Head of Corporate Affairs | Other disclosed roles | $129,165 | $350 | 2025 |
| Allan, Crystal | Manager, Landscape Restoration | Corporate administration and operations | $128,055 | $369 | 2025 |
| Bartley, Brenna | Education Manager | Corporate administration and operations | $128,016 | $370 | 2025 |
| O'Connor, Kristin | Hamilton Halton Remedial Action Plan Coordinator | Corporate administration and operations | $127,975 | $370 | 2025 |
| Coombs, Brian | Project Manager, Construction and Facility Assets | Corporate administration and operations | $126,473 | $328 | 2025 |
| Howatt, Matt | Manager, Environmental Planning | Corporate administration and operations | $125,529 | $364 | 2025 |
| Veale, Barbara | Senior Director, Watershed Management and Climate Change | Other disclosed roles | $125,275 | $280 | 2025 |
| Lenarduzzi, Alexandra | Water Resources Engineer | Engineering, planning and infrastructure | $124,120 | $310 | 2025 |
| Irwin, David | Water Resources Engineer | Engineering, planning and infrastructure | $122,143 | $349 | 2025 |
| Fischer-Patterson, Sabrina | Water Resources Engineer | Engineering, planning and infrastructure | $121,875 | $349 | 2025 |
| Strakowski, Jacek | Hydrogeologist (Planning) | Other disclosed roles | $121,875 | $349 | 2025 |
| Birza, Adriana | Senior Advisor, Office of the chief executive officer | Executive and senior leadership | $119,977 | $349 | 2025 |
| Young, Jennifer | Senior Water Resources Engineer | Engineering, planning and infrastructure | $119,977 | $310 | 2025 |
| Robinson, Tara | Coordinator, Food and Beverage | Corporate administration and operations | $119,414 | $345 | 2025 |
| Davis, Benjamin | Regional Infrastructure Team Lead | Engineering, planning and infrastructure | $117,213 | $342 | 2025 |
| Kennedy, Rod | Manager, Facilities and Maintenance | Engineering, planning and infrastructure | $117,074 | $343 | 2025 |
| Engel, Janet | Water Resources Engineer | Engineering, planning and infrastructure | $116,908 | $341 | 2025 |
| Seth, Pavan | Procurement Manager | Finance, procurement and audit | $116,861 | $341 | 2025 |
| Datseris, Shelly | Manager, Communications and Marketing | Communications, marketing and public affairs | $114,364 | $335 | 2025 |
| Campbell, Lindsay | Project Manager, Design and Restoration Services | Corporate administration and operations | $113,408 | $332 | 2025 |
| O'Reilly, Benjamin | Flood Forecasting and Operations Technologist | Corporate administration and operations | $113,131 | $315 | 2025 |
| Molignano, Anthony | Manager, Human Resources | Human resources, labour relations and total rewards | $112,553 | $330 | 2025 |
| Fischer, Beth Anne | Project Manager, Design and Restoration Services | Corporate administration and operations | $111,356 | $327 | 2025 |
| Maertens, Marianne | Water Resources Engineer | Engineering, planning and infrastructure | $111,256 | $288 | 2025 |
| Defields, Emma | Senior Environmental Planner | Engineering, planning and infrastructure | $111,003 | $326 | 2025 |
| Seguin, Trina | Lands Manager | Corporate administration and operations | $109,582 | $322 | 2025 |
| Jennings, Lisa | Coordinator, Restoration and Development Monitoring | Corporate administration and operations | $109,449 | $322 | 2025 |
| O'Malley, Kimberly | Senior Accountant and Budget Coordinator | Finance, procurement and audit | $108,916 | $316 | 2025 |
| Bryant, Adrian | Coordinator, Forestry | Corporate administration and operations | $108,471 | $281 | 2025 |
| Mitchell, Dave | Flood Control Specialist | Other disclosed roles | $108,328 | $277 | 2025 |
| Parsons, Karen | Coordinator, Visitor Services, Kelso/Glen Eden | Corporate administration and operations | $108,327 | $320 | 2025 |
| Davey, Sandra | Coordinator, Animal Care and Programs | Corporate administration and operations | $106,715 | $276 | 2025 |
| Anderson, Holly | Planning Ecologist Specialist | Other disclosed roles | $104,900 | $310 | 2025 |
| Martel, Tawnia | Planning Ecologist Specialist | Other disclosed roles | $104,900 | $310 | 2025 |
| Newell, Allan | Water Resources Engineering Technologist | Engineering, planning and infrastructure | $104,900 | $271 | 2025 |
| Rennick, Brad | Geographic Information System Analyst Lead | Corporate administration and operations | $104,900 | $310 | 2025 |
| Admans, Richard | Information Technology – Lead | Digital, data and technology | $104,500 | $271 | 2025 |
| Dolson, Rebecca | Coordinator, Water and Biodiversity Monitoring | Engineering, planning and infrastructure | $104,422 | $313 | 2025 |
| Shimada, Devan | Coordinator, Recreation Programs | Corporate administration and operations | $104,113 | $270 | 2025 |
| Baxter, Jeremy | Lift Mechanic Lead | Other disclosed roles | $103,697 | $308 | 2025 |
| Panczyk, Ola | Environmental Planner | Engineering, planning and infrastructure | $103,200 | $305 | 2025 |
| Head, Laura | Regulations Officer | Other disclosed roles | $102,968 | $305 | 2025 |
| Adams, Laurel | Project Coordinator, Flood Hazard Mapping | Corporate administration and operations | $102,112 | $264 | 2025 |
| Dearlove, Heather | Environmental Planner | Engineering, planning and infrastructure | $101,899 | $310 | 2025 |
| McMaster, Cameron | Manager, Recreation Operations | Corporate administration and operations | $101,792 | $304 | 2025 |
| Feldmann, Ilona | Resource Planning Coordinator | Corporate administration and operations | $101,086 | $300 | 2025 |
| Bester, Jessica | Senior Environmental Planner | Engineering, planning and infrastructure | $100,174 | $325 | 2025 |