Geoff Mattiussi
Ontario Power Generation/Radiation Protection and Safety, First Line Manager Assistant
2023 Salary — last year on the list
$123,547Total compensation $124,227, including $680 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
2023
Employer Rank
#7,993Ontario Power Generation
Years on List
122011–2023
Peak Salary
$207,2262021
Full 2023 roster at Ontario Power Generation →·See where $123,547 ranks →
Total Compensation History
Full History
2011–2023
$104,441 in 2011 is worth about $143,029 in 2025 dollars.
Take-Home Pay
(After Tax) · 2023 estimate
Of the $123,547 Geoff Mattiussi earned in 2023, roughly $87,570 would remain after income tax, CPP and EI, an all-in deduction rate of about 29.1%. Among those listed as Radiation Protection and Safety First Line Manager Assistant in 2023, the median was $166,448; this salary sits about 26% below it. Geoff Mattiussi has appeared on the list 12 times since 2011. This estimate leaves out pension contributions; members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less.
- Estimated net pay
- ~$87,570
- Effective income-tax rate (excl. CPP/EI)
- ~25.3%
- CPP + EI contributions
- ~$4,756
- All-in deduction rate (incl. CPP/EI)
- ~29.1%
- vs. 2023 Radiation Protection and Safety First Line Manager Assistant median
- −26%
Where does $123,547 rank on the Sunshine List? →
Estimate only: 2023 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.