How many employees work at Onet SA?

Onet SA has approximately 23,755 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Onet SA’s total headcount has grown 1.4% from 23,428 employees in 2023 to 23,755 in 2026.

Data source: Revelio LabsCoverage: Global workforce, 20232026Published August 2026

Is Onet SA hiring right now?

Yes, Onet SA is actively hiring. Onet SA had 2,941 active job postings in 2026, a 40.5% increase from 2025 see job openings & hiring trends.

About Onet SA’s Workforce

Onet SA is an Environmental Services company that employs 23,755 people worldwide as of March 2026. It is the 2nd-largest by headcount among its peers. Founded in 1959, the company is headquartered in Marseille, France.

Onet SA's workforce has grown 1.4% from 2023 to 2026. Its workforce is concentrated most in Western Europe (74.8%), followed by South America (18.9%) and Southern Europe (4.2%).

Onet SA's functional groups are Finance and Operations (47.1%), Engineering (29.6%), and Sales and Marketing (23.3%). The average salary is $29,393, ranging from a median of $101,000 in North America to $6,000 in South America, up 0.8% year over year in 2026.

Onet SA's active job postings rose 40.5% in 2026 to 2,941, with new postings per month climbing from 1,070 in 2023 to 1,339 in 2026. Overall employee sentiment is negative and declining.

Sourced from Revelio Labs workforce data.

Headquarters
Marseille, France
Founded
1959
Industry
Environmental Services
Employees
23,755
YoY
-0.0% (+270)

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Onet SA Annual Employee Count (2023-2026)

Interactive chart of Onet SA annual worldwide employee count from 2023 to 2026.
  • Onet SA had 23,755 employees in 2026, a 0% no change (+270) from 2025.
  • Onet SA had 23,727 employees in 2025, a 0.3% increase (+322) from 2024.
  • Onet SA had 23,405 employees in 2024, a 0.1% increase (+55) from 2023.
  • Onet SA had 23,350 employees in 2023, a 0.7% increase (+121) from 2022.

Onet SA's total workforce has grown from 23,428 employees in 2023 to 23,755 in 2026.

Onet SA quarterly employee count

YearQtrEmployeesYoY ChangeYoY %
2026Q123,755+270-0.0%
2025Q423,727+322+0.3%
2025Q323,689+147-0.0%
2025Q223,726-215-0.4%
2025Q123,485-101+0.0%
2024Q423,405+55+0.1%
2024Q323,542+207+0.7%
2024Q223,941+513+1.3%
2024Q123,586+398+0.9%
2023Q423,350+121+0.7%
2023Q323,335+111+0.8%
2023Q223,428-50+0.5%

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Onet SA Employee Count by Region (2026)

Western Europe accounts for the largest share of Onet SA's global workforce with approximately 75% of total employees, followed by South America and Southern Europe.

Onet SA employees by region

RegionEmployees% of Total
Western Europe17,68674.8%
South America4,47918.9%
Southern Europe9844.2%
North America1210.5%
Central America and the Caribbean1060.5%
North Africa600.3%
Sub-Saharan Africa490.2%
South Asia360.2%
Northern Europe260.1%
Southeast Asia230.1%

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Onet SA Employee Count by Department (2026)

Onet SA's employee groups are Finance and Operations (47.1%), Engineering (29.6%), and Sales and Marketing (23.3%).

Onet SA employees by department

DepartmentEmployees% of Total
Finance and Operations10,83547.1%
Engineering6,79929.6%
Sales and Marketing5,36723.3%

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Onet SA Employee Salary by Region (2026)

Onet SA's average employee salary is $29,393 globally. Employees in North America receive the highest compensation, with median pay approximately 3.4x the global average. Pay is lowest in South America, at a median of $6,000.

Onet SA median employee salary by region (USD)

RegionMedian Salary
North America$101,000
East Asia$50,000
Pacific Islands$45,000
Northern Europe$43,000
Western Europe$28,000
Eastern Europe$21,000
Southern Europe$19,000
Central America and the Caribbean$15,000
Central and Western Asia$13,000
Sub-Saharan Africa$12,000
North Africa$9,000
Southeast Asia$7,000
South America$6,000
South Asia$6,000

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Onet SA Job Openings and Hiring Trends (2023-2026)

Interactive chart of Onet SA annual active job postings from 2023 to 2026.
  • Onet SA had 2,941 active job postings in 2026, a 40.5% increase (+691) from 2025.
  • Onet SA had 2,250 active job postings in 2025, a 12.3% increase (+261) from 2024.
  • Onet SA had 1,989 active job postings in 2024, a 2.3% decline (-46) from 2023.
  • Onet SA had 2,035 active job postings in 2023, a 82.5% increase from 2022.
  • Hiring velocity in 2026: 1,339 new roles/month, down from 1,447 in 2025 and 1,762 in 2024.

Onet SA's hiring is accelerating: active job postings rose 40.5% in 2026 to 2,941, with new postings per month climbing from 1,070 in 2023 to 1,339 in 2026.

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Onet SA Employee Sentiment (2026)

Revelio Labs tracks employee sentiment across Onet SA's workforce based on public professional data. Overall sentiment is negative and has declined year over year in 2026.

Overall

NegativePositive

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Frequently Asked Questions About Onet SA

How fast is Onet SA growing?
In 2026, Onet SA's headcount shrank 0.0% to 23,755 employees, up from 23,485 in 2025.
See the full headcount history
Where are Onet SA employees located?
Most Onet SA employees are based in Western Europe (74.8% of headcount), followed by South America and Southern Europe.
Explore where the workforce is based
What is the average salary at Onet SA?
The average employee salary at Onet SA is approximately $29.4k per year.
Analyze the salary distribution
How many new job postings does Onet SA open per year?
In Q1 2026, Onet SA opened 4,017 new job postings. In 2025, Onet SA opened 17,359 new job postings — about 1,447 per month.
Track hiring trends by role
When was Onet SA founded and where is it headquartered?
Onet SA was founded in 1959 and is headquartered in Marseille, France.
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