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Mark Bosomworth

Ontario Power Generation/First Line Manager, Control/Mechanical

2025 Salary

$240,738

Total compensation $245,815, including $5,077 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

#712

Ontario Power Generation

Years on List

17

2007–2025

Peak Salary

$250,521

2024

Full 2025 roster at Ontario Power Generation →·See where $240,738 ranks →

Total Compensation History

Total compensation by yearLine chart of 17 yearly values of total compensation, from $107,950 in 2007 to $245,815 in 2025. No data from 2008 to 2009.$100K$150K$200K$250K$300K200720122015201920212025
Total compensation, 2007–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2007–2025

$106,765 in 2007 is worth about $157,227 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2025First Line Manager, Control/MechanicalOntario Power Generation$240,738Benefits $5,077Total $245,815
2024First Line Manager, Control/MechanicalOntario Power Generation$250,521Benefits $7,490Total $258,012
2023First Line Manager, Control/MechanicalOntario Power Generation$246,540Benefits $7,246Total $253,787
2022First Line Manager, Control/MechanicalOntario Power Generation$223,841Benefits $6,440Total $230,281
2021First Line Manager, Control/MechanicalOntario Power Generation$190,626Benefits $5,705Total $196,331
2020First Line Manager, Control/MechanicalOntario Power Generation$166,857Benefits $5,035Total $171,891
2019First Line Manager, Control/MechanicalOntario Power Generation$152,886Benefits $4,259Total $157,145
2018First Line Manager, Control/MechanicalOntario Power Generation$160,804Benefits $4,243Total $165,047
2017First Line Manager, Control/MechanicalOntario Power Generation$151,696Benefits $5,491Total $157,187
2016First Line Manager, Control/MechanicalOntario Power Generation$133,834Benefits $1,573Total $135,407
2015Electrical & Control Technician First Line Manager AssistantOntario Power Generation$139,690Benefits $1,550Total $141,239
2014Electrical and Control Technician First Line Manager AssistantOntario Power Generation$130,700Benefits $1,541Total $132,241
2013Electrical & Control Technician First Line Manager AssistantOntario Power Generation$123,972Benefits $1,518Total $125,489
2012Electrical & Control Technician, First Line Manager AssistantOntario Power Generation$136,009Benefits $1,496Total $137,505
2011Electrical & Control Technician, First Line Manager AssistantOntario Power Generation$165,668Benefits $1,477Total $167,146
2010Electrical & Control Technician, First Line Manager AssistantOntario Power Generation$139,727Benefits $1,382Total $141,109
2007Senior Shift Control TechnicianOntario Power Generation$106,765Benefits $1,186Total $107,950

Take-Home Pay
(After Tax) · 2025 estimate

Mark Bosomworth was paid $240,738 in 2025; after income tax, CPP and EI that is roughly $151,320, an effective income-tax rate of about 34.9%. Compared with 2024, when the figure was $250,521, that is a drop of about 4%. Records under this name have appeared on the Sunshine List 17 years in all, first in 2007. This estimate leaves out pension contributions; members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less.

Estimated net pay
~$151,320
Effective income-tax rate (excl. CPP/EI)
~34.9%
CPP + EI contributions
~$5,507
All-in deduction rate (incl. CPP/EI)
~37.1%
vs. 2025 First Line Manager, Control/Mechanical median
+8%

Where does $240,738 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) →