William Dempster
Independent Electricity System Operator/Supervisor Security Architecture and Risk / Superviseur de l’architecture de la sécurité et des risques
2025 Salary
$173,549Total compensation $173,907, including $358 in taxable benefits.
Source: Ontario’s Public Sector Salary Disclosure — names paid $100,000 or more that year. How we build this · Report an error on this page
At a Glance
2025
Employer Rank
#298Independent Electricity System Operator
Years on List
42022–2025
Peak Salary
$173,5492025
Full 2025 roster at Independent Electricity System Operator →·See where $173,549 ranks →
Total Compensation History
Full History
2022–2025
$151,542 in 2022 is worth about $164,571 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Supervisor Security Architecture and Risk / Superviseur de l’architecture de la sécurité et des risquesIndependent Electricity System Operator | $173,549 |
| 2024 | Supervisor Security Architecture and Risk / Superviseur de l’architecture de la sécurité et des risquesIndependent Electricity System Operator | $167,390 |
| 2023 | Supervisor Security Architecture and Risk / Superviseur de l’architecture de la sécurité et des risquesIndependent Electricity System Operator / Opérateur indépendant de réseau d'électricité | $167,144 |
| 2022 | Supervisor Security Architecture and Risk / Superviseur de l’architecture de la sécurité et des risquesIndependent Electricity System Operator | $151,542 |
Take-Home Pay
(After Tax) · 2025 estimate
Of the $173,549 William Dempster earned in 2025, roughly $116,844 would remain after income tax, CPP and EI, an all-in deduction rate of about 32.7%. Compared with 2024, when the figure was $167,390, that is a rise of about 4%. Records under this name have appeared on the Sunshine List 4 years in all, first in 2022. Pension contributions — likely PSPP or OPTrust in the Crown Agencies sector — would typically trim another 7–10% off that figure.
- Estimated net pay
- ~$116,844
- Effective income-tax rate (excl. CPP/EI)
- ~29.5%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~32.7%
Where does $173,549 rank on the Sunshine List? →
Estimate only: 2025 federal and Ontario rates, basic personal amounts, Canada employment amount and CPP/EI credits; single, employment income only, salary treated as full-year income. Ignores pension contributions (OMERS, HOOPP, OTPP, OPTrust and similar plans lower actual take-home), union dues, RRSPs and benefits.