How many employees work at Siello?

Siello SAS has approximately 35 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Siello’s total headcount has grown 266.4% from 10 employees in 2023 to 35 in 2026.

Data source: Revelio LabsCoverage: Global workforce, 2023–2026Published August 2026

Is Siello hiring right now?

No, Siello is not actively hiring. Siello had 0 active job postings in 2026, a 200.0% decline from 2025 — see job openings & hiring trends.

About Siello’s Workforce

Siello SAS is a Real Estate and Development company that employs 35 people worldwide as of March 2026. It is the 9th-largest by headcount among its peers. Founded in 2023, the company is headquartered in Saint-Denis, France.

Siello's workforce has grown 266.4% from 2023 to 2026, up 3.6% year over year in 2026. Its workforce is concentrated most in Western Europe (70.4%), followed by Central America and the Caribbean (9.6%) and Southern Europe (7.0%).

Siello's functional groups are Finance and Operations (51.6%), Engineering (29.8%), and Sales and Marketing (18.6%), with Finance and Operations growing fastest (up 5.7%). The average salary is $57,132, highest in Western Europe at a median of $52,000, down 4.6% year over year in 2026.

Siello's active job postings fell 200.0% in 2026 to 0, with new postings per month cooling from 2 in 2023 to 0 in 2026.

Sourced from Revelio Labs workforce data.

Headquarters
Saint-Denis, France
Founded
2023
Industry
Real Estate and Development
Employees
35
YoY
+3.6% (+0)

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Siello Annual Employee Count (2023-2026)

Interactive chart of Siello annual worldwide employee count from 2023 to 2026.
  • Siello had 35 employees in 2026, a 3.6% increase from 2025.
  • Siello had 32 employees in 2025, a 7.2% increase (-2) from 2024.
  • Siello had 34 employees in 2024, a 8.9% increase (+15) from 2023.
  • Siello had 19 employees in 2023, a 13.5% increase (+11) from 2022.

Siello's total workforce has grown from 10 employees in 2023 to 35 in 2026.

Siello SAS quarterly employee count

YearQtrEmployeesYoY ChangeYoY %
2026Q135+0+3.6%
2025Q432-2+7.2%
2025Q333+3+11.1%
2025Q234+15+8.2%
2025Q135+18+8.4%
2024Q434+15+8.9%
2024Q330+14+10.1%
2024Q219+9+21.6%
2024Q117+9+24.5%
2023Q419+11+13.5%
2023Q316+9+16.1%
2023Q210+3+0.0%

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Siello Employee Count by Region (2026)

Western Europe accounts for the largest share of Siello's global workforce with approximately 70% of total employees, followed by Central America and the Caribbean and Southern Europe.

Siello employees by region

RegionEmployees% of Total
Western Europe2570.4%
Central America and the Caribbean39.6%
Southern Europe27.0%
Pacific Islands27.0%
South America26.1%

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Siello Employee Count by Department (2026)

Siello's employee groups are Finance and Operations (51.6%), Engineering (29.8%), and Sales and Marketing (18.6%).

Siello employees by department

DepartmentEmployees% of Total
Finance and Operations1851.6%
Engineering1029.8%
Sales and Marketing618.6%

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Siello Employee Salary by Region (2026)

Siello's average employee salary is $57,132 globally. Employees in Western Europe receive the highest compensation.

Siello median employee salary by region (USD)

RegionMedian Salary
Western Europe$52,000

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Siello Job Openings and Hiring Trends (2023-2026)

Interactive chart of Siello annual active job postings from 2023 to 2026.
  • Siello had 0 active job postings in 2026, a 200.0% decline from 2025.
  • Siello had 0 active job postings in 2025, a 200.0% decline (-2) from 2024.
  • Siello had 2 active job postings in 2024, a 0% no change from 2023.
  • Siello had 2 active job postings in 2023, a 200.0% increase from 2022.
  • Hiring velocity in 2026: 0 new roles/month, up from 0 in 2025 and 3 in 2024.

Siello's hiring is slowing: active job postings fell 200.0% in 2026 to 0, with new postings per month cooling from 2 in 2023 to 0 in 2026.

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Frequently Asked Questions About Siello

How fast is Siello growing?
In 2026, Siello's headcount grew 3.6% to 35 employees.
See the full headcount history
Where are Siello employees located?
Most Siello employees are based in Western Europe (70.4% of headcount), followed by Central America and the Caribbean and Southern Europe.
Explore where the workforce is based
What is the average salary at Siello?
The average employee salary at Siello is approximately $57.1k per year.
Analyze the salary distribution
How many new job postings does Siello open per year?
In Q1 2026, Siello opened 0 new job postings. In 2025, Siello opened 1 new job postings — about 0 per month.
Track hiring trends by role
When was Siello founded and where is it headquartered?
Siello was founded in 2023 and is headquartered in Saint-Denis, France.
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