Gregory Lister

Ontario Power Generation/Security, First Line Manager

2025 Salary

$241,257

Total compensation $248,414, including $7,158 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

#674

Ontario Power Generation

Years on List

2011–2025

Peak Salary

$241,257

2025

Full 2025 roster at Ontario Power Generation →·See where $241,257 ranks →

Total Compensation History

Total compensation, 2011–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2011–2025

$105,355 in 2011 is worth about $144,281 in 2025 dollars.

Full salary history, by year
Year	Employer	Position	Salary	Benefits	Total
2025	Ontario Power Generation	Security, First Line ManagerOntario Power Generation	$241,257	$7,158	$248,414
2024	Ontario Power Generation	Security, First Line ManagerOntario Power Generation	$233,759	$5,982	$239,741
2023	Ontario Power Generation	Security, First Line ManagerOntario Power Generation	$221,849	$5,751	$227,600
2022	Ontario Power Generation	Security, First Line ManagerOntario Power Generation	$240,905	$5,054	$245,959
2021	Ontario Power Generation	Security, First Line ManagerOntario Power Generation	$183,188	$4,461	$187,649
2020	Ontario Power Generation	Security, First Line ManagerOntario Power Generation	$147,804	$3,926	$151,730
2019	Ontario Power Generation	Security, First Line ManagerOntario Power Generation	$140,034	$3,608	$143,642
2018	Ontario Power Generation	Security, First Line ManagerOntario Power Generation	$131,893	$4,028	$135,921
2017	Ontario Power Generation	Nuclear Security Officer First Line Manager AssistantOntario Power Generation	$122,558	$4,406	$126,964
2016	Ontario Power Generation	Nuclear Security Officer First Line Manager AssistantOntario Power Generation	$125,821	$1,380	$127,201
2015	Ontario Power Generation	Nuclear Security Officer First Line Manager AssistantOntario Power Generation	$112,884	$1,371	$114,255
2014	Ontario Power Generation	Nuclear Security Officer First Line Manager AssistantOntario Power Generation	$114,305	$1,364	$115,669
2013	Ontario Power Generation	Nuclear Security Officer First Line Manager AssistantOntario Power Generation	$110,731	$1,349	$112,079
2012	Ontario Power Generation	Nuclear Security Officer, First Line Manager AssistantOntario Power Generation	$103,648	$1,333	$104,981
2011	Ontario Power Generation	Nuclear Security Officer, First Line Manager AssistantOntario Power Generation	$105,355	$1,317	$106,672

Take-Home Pay
(After Tax) · 2025 estimate

Gregory Lister was paid $241,257 in 2025; after income tax, CPP and EI that is roughly $151,581, an effective income-tax rate of about 34.9%. Among those listed as Security First Line Manager in 2025, the median was $210,501; this salary sits about 15% above it. That is about 3% more than the $233,759 paid in 2024. This estimate leaves out pension contributions; members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less.

Estimated net pay: ~$151,581
Effective income-tax rate (excl. CPP/EI): ~34.9%
CPP + EI contributions: ~$5,507
All-in deduction rate (incl. CPP/EI): ~37.2%
vs. 2025 Security First Line Manager median: +15%

Where does $241,257 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

Also at Ontario Power Generation, 2025
#	Name	Position	Salary	Total
1	Kenneth Hartwick	Special Advisor	$1,907,409	$1,910,992
2	Nicolle Butcher	President and Chief Executive Officer	$1,596,218	$1,598,309
3	Steve Gregoris	Chief Nuclear Officer	$1,092,855	$1,096,651
4	Aida Cipolla	Chief Financial Officer and Chief Administrative Officer	$1,013,496	$1,016,119
5	Subo Sinnathamby	Chief Projects Officer	$981,476	$985,253
6	Mark Knutson	Chief Enterprise Engineering and Chief Nuclear Engineer	$856,947	$859,793
7	Jon Franke	Senior Vice President Nuclear	$826,655	$828,637
8	Shelley Babin	Chief Operations Officer	$748,469	$750,849
9	Brenda Macdonald	Chief Commercial Officer	$727,479	$729,740
10	David Kaposi	Executive Vice President Investment Strategy and Business Development	$701,432	$703,541