How many employees work at Hydro One?
Hydro One Ltd. has 5,969 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is -2.4%.
Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025
About Hydro One
We bring the light. We’re the energy company devoted to helping customers and communities across Ontario live a better, brighter life. Our employees are deeply dedicated to delivering essential electricity to energize everyday moments. They are what drive our business forward. With a diverse team of engineers, project managers, power line workers and arborists, field staff, supervisors, new grads, students, electricians and technicians—we share a commitment to energizing life. If you’re interested in being part of our team, please visit our careers page here HydroOne.com/careers to explore our current opportunities. If you’d like to learn more about Hydro One and all that we do, visit our website at HydroOne.com
As of December 2025
Hydro One
workforce metrics
Headcount
6k
Avg. Salary
$81.1k
Tenure
6.9yr
Growth Rate
-2.4%
Hiring Rate
Attrition Rate
For even more metrics data,
reach out to our sales team.
Employee Headcount
Interactive chart of Hydro One annual worldwide employee count from 2023 to 2025.
- Hydro One total number of employees in 2025 was 5,966, a 2.4% decline from 2024.
- Hydro One total number of employees in 2024 was 6,110, a 3.4% increase from 2023.
- Hydro One total number of employees in 2023 was 5,907, a 6.5% increase from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of Hydro One annual active job postings from 2023 to 2025.
- Hydro One active job postings in 2025 was 48, a 52.6% increase from 2024.
- Hydro One active job postings in 2024 was 28, a 71.3% decline from 2023.
- Hydro One active job postings in 2023 was 59, a 16.5% increase from 2022.
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Employee Sentiment
Sentiment Topics
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