Atura

Ontario Sunshine List 2025 · 167 employees earning $100K+

Ontario Power Generation

At a Glance
2025

Employee Count

167

2025 Sunshine List

Total Compensation

$35.4M

Salaries + taxable benefits

Average Salary

$203,020

2025 Sunshine List

Median Salary

$200,411

Half earn more, half less

Who makes the most at Atura in 2025?

Thomas Patterson, President and Chief Executive Officer, was paid $508,857 in 2025 — the highest total compensation among 167 Atura employees on the Sunshine List; the median salary there was $200,411.

How has Atura's Sunshine List changed?

Atura listed 76 people in 2020 and 167 in 2025 — 2.2× as many; payroll on the list went from $11.9M to $35.4M, and the median salary moved from $143,974 to $200,411.

How many Atura employees earn over $150,000? →

Salary Trend

Median salary by yearLine chart of 6 yearly values of median salary, from $143,974 in 2020 to $200,411 in 2025.$100K$125K$150K$175K$200K$225K202020212022202320242025
Median salary, 2020–2025. Axis starts at $100,000, the Sunshine List disclosure threshold. That threshold has never been indexed to inflation, so this line can fall over time simply because more people newly cross it — not necessarily because pay fell.

Top Employees
2025

#1Thomas Patterson
$508,857
President and Chief Executive Officer
#2Paul Bronowicki
$456,685
Vice President, Major Projects
#3Neil Finnerty
$413,987
Vice President, Operations
#4Kelly Grieves
$405,739
Vice President, Energy Markets and Growth
#5Ramdeo Balliram
$345,710
Electrical, Instrumentation and Control Technician
#6David Haughton
$318,854
Vice President, Corporate Affairs and General Counsel
#7Colin Rieveley
$315,650
Shift Engineer
#8David Roorda
$305,366
Director, Major Projects
#9Chris Leeds
$304,331
Maintenance Technician – Mechanical
#10Yingguo Sun
$298,494
Electrical, Instrumentation and Control Technician
#11Jeffrey Cowling
$298,492
Shift Engineer
#12Clyde Lemieux
$293,159
Maintenance Technician – Mechanical
#13Donald Tiffney
$292,534
Plant Manager
#14Tom Fletcher
$291,019
Plant Manager
#15Jacob Shearon
$290,992
Shift Engineer
#16Noralyn Vasquez
$281,525
Advisor, Project Integration and Strategic Initiatives
#17Craig Reuper
$280,075
Shift Engineer
#18Jason Cristofaro
$278,258
Shift Engineer
#19Braeden Black
$275,552
Shift Engineer
#20Nicholas Taggart
$274,118
Assistant Chief Engineer
#21Geoff Saunders
$271,596
Plant Manager
#22Jay Hrynyk
$270,602
Maintenance Technician – Mechanical
#23Rene Duerto
$267,814
Electrical, Instrumentation and Control Technician
#24James Macdonald
$267,657
Operations Manager
#25Cory Munro
$266,503
Electrical, Instrumentation and Control Technician

See all 167 employees in 2025 →

Download CSV (2025) →Released by the Government of Ontario under the Public Sector Salary Disclosure Act, 1996. Compiled by SunshineList.

Biggest Year-over-Year Increases
2024 → 2025

Thomas Patterson at Atura had the largest increase in disclosed pay on the 2025 Sunshine List: $329,587 to $477,972, up 45.0%.

Thomas Patterson+45.0%
President and Chief Executive Officer
$329,587 → $477,972
Neil Finnerty+52.2%
Vice President, Operations
$270,555 → $411,803
Kelly Grieves+50.8%
Vice President, Energy Markets and Growth
$262,994 → $396,701
Paul Bronowicki+36.1%
Vice President, Major Projects
$315,306 → $429,193
Colin Rieveley+43.7%
Shift Engineer
$218,293 → $313,718

A year-over-year increase or decrease in disclosed pay can include overtime, a retroactive payment, a vacation payout or severance, not only a change in base pay, rate, or role — the Sunshine List discloses total salary paid that year, not a pay rate. This list is ranked by the dollar increase, not by the percentage shown.

32 people were new to Atura's list in 2025; 28 who were on it in 2024 were not. See the full 2025 roster →

See all pay increases at Atura →

By Year
full lists

Top Positions
2025 · 5 or more people