Mark Antkowski

Independent Electricity System Operator/Specialist Solutions / Spécialiste – Solutions

2025 Salary

$140,305

Total compensation $140,596, including $291 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

#669

Independent Electricity System Operator

Years on List

3

2023–2025

Peak Salary

$140,305

2025

Full 2025 roster at Independent Electricity System Operator →·See where $140,305 ranks →

Total Compensation History

Total compensation by yearLine chart of 3 yearly values of total compensation, from $126,260 in 2023 to $140,596 in 2025.$100K$110K$120K$130K$140K$150K202320242025
Total compensation, 2023–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2023–2025

$125,969 in 2023 is worth about $131,662 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2025Specialist Solutions / Spécialiste – SolutionsIndependent Electricity System Operator$140,305
2024Specialist Solutions / Spécialiste - SolutionsIndependent Electricity System Operator$131,333
2023Specialist Solutions / Spécialiste – SolutionsIndependent Electricity System Operator / Opérateur indépendant de réseau d'électricité$125,969

Take-Home Pay
(After Tax) · 2025 estimate

Take-home on Mark Antkowski's 2025 salary of $140,305 comes to roughly $98,383 once federal and Ontario income tax (about 26.0% effective) is deducted. It is up about 7% on the $131,333 paid in 2024. Records under this name have appeared on the Sunshine List 3 years in all, first in 2023. Most Crown Agencies employees belong to PSPP or OPTrust, so actual take-home is likely another 7–10% lower after pension contributions.

Estimated net pay
~$98,383
Effective income-tax rate (excl. CPP/EI)
~26.0%
CPP + EI contributions
~$5,507
All-in deduction rate (incl. CPP/EI)
~29.9%
vs. 2025 Specialist Solutions Solutions median
−12%

Where does $140,305 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.

Also at Independent Electricity System Operator
2025

#1Lesley Gallinger
$708,974
President and Chief Executive Officer / Président et chef de la direction
#2Charles Farmer
$428,403
Executive Vice President, Power System Development / Vice-président(e) directeur(rice) – Développement des systèmes électriques
#3Kamaljit Sohi
$426,753
Executive Vice President and Chief Operating Officer, Markets and Reliability / Chef(fe) de l’exploitation et Vice-président(e) directeur(rice) – Marchés et fiabilité
#4Carla Nell
$412,660
Executive Vice President, Corporate Relations, Engagement and Strategy / Vice-président(e) directeur(rice) – Relations de l’entreprise, engagement et stratégie
#5Alex Foord
$403,103
Executive Vice-President, Information and Technology Services and Chief Information Officer / Vice-président(e) directeur(rice) – Services d’information et de technologie et Dirigeant(e) principal(e) de l’information
#6Michael Lyle
$388,437
Executive Vice President, Legal Resources and Corporate Governance / Vice-président(e) directeur(rice) – Ressources juridiques et gouvernance d’entreprise
#7Ernest Chui
$326,815
Vice President and Chief Financial Officer, Corporate Services / Vice-président(e) et Directeur(rice) financier(ère) – Services d’entreprise
#8Michael Boll
$315,154
Senior Director, Legal Resources and Corporate Secretary / Directeur(rice) principal(e) – Ressources juridiques et Secrétaire général(e)
#9Glenn Mcdonald
$311,199
Vice President Market Assessment and Compliance / Vice-président – Évaluation des marchés et conformité
#10David Short
$304,430
Senior Director Enabling Resources Program Delivery / Directeur principal – Exécution des programmes de ressources d'habilitation
View all 1,002 employees at Independent Electricity System Operator (2025) →