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Mark Armstrong

Ontario Power Generation/Director Programs and Strategy

2025 Salary

$254,711

Total compensation $256,387, including $1,676 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

#570

Ontario Power Generation

Years on List

15

2011–2025

Peak Salary

$254,711

2025

Full 2025 roster at Ontario Power Generation·See where $254,711 ranks →

Total Compensation History

Total compensation by yearLine chart of 15 yearly values of total compensation, from $101,519 in 2011 to $256,387 in 2025.$100K$150K$200K$250K$300K201120142017201920222025
Total compensation, 2011–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
20112025

$100,856 in 2011 is worth about $138,119 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2025Director Programs and StrategyOntario Power Generation$254,711
2024Director Plant OperationsOntario Power Generation$243,705
2023Director Plant OperationsOntario Power Generation$227,483
2022Director, Plant OperationsOntario Power Generation$230,018
2021Production Manager Hydro/ThermalOntario Power Generation$214,117
2020Production Manager Hydro/ThermalOntario Power Generation$198,344
2019Production Manager Hydro/ThermalOntario Power Generation$184,775
2018Production Manager Hydro/ThermalOntario Power Generation$174,366
2017Project Manager, Electricity ProductionOntario Power Generation$158,176
2016Manager Work Centre/MaintenanceOntario Power Generation$158,516
2015Manager Work Centre/MaintenanceOntario Power Generation$142,263
2014Plant Technical Support ManagerOntario Power Generation$123,793
2013Plant Technical Support ManagerOntario Power Generation$119,402
2012Cost and Schedule AnalystOntario Power Generation$105,599
2011Cost & Schedule AnalystOntario Power Generation$100,856

Take-Home Pay
(After Tax) · 2025 estimate

Of the $254,711 Mark Armstrong earned in 2025, roughly $158,322 would remain after income tax, CPP and EI, an all-in deduction rate of about 37.8%. It is up about 5% on the $243,705 paid in 2024. Records under this name have appeared on the Sunshine List 15 years in all, first in 2011. Members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less after pension contributions, which this estimate leaves out.

Estimated net pay
~$158,322
Effective income-tax rate (excl. CPP/EI)
~35.7%
CPP + EI contributions
~$5,507
All-in deduction rate (incl. CPP/EI)
~37.8%

Where does $254,711 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 Ontario Power Generation
2025

View all 10,346 employees at Ontario Power Generation (2025) →