How many employees work at Siza?
Stichting Siza has approximately 778 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Siza’s total headcount has grown 11.3% from 699 employees in 2023 to 778 in 2026.
Is Siza hiring right now?
Yes, Siza is actively hiring. Siza had 80 active job postings in 2026, a 96.3% increase from 2025 — see job openings & hiring trends.
About Siza’s Workforce
Stichting Siza is a Healthcare and Wellness Services company that employs 778 people worldwide as of March 2026. It is the 11th-largest by headcount among its peers. Founded in 1999, the company is headquartered in Arnhem, Netherlands.
Siza's workforce has grown 11.3% from 2023 to 2026, though it is down 2.1% year over year in 2026. It fell to a low of 672 in 2024 Q1 before recovering. Its workforce is concentrated most in Western Europe (98.7%), followed by Sub-Saharan Africa (0.5%) and Central and Western Asia (0.3%).
Siza's functional groups are Finance and Operations (48.2%), Engineering (39.9%), and Sales and Marketing (11.9%), with Sales and Marketing growing fastest (up 17.0%). The average salary is $51,130, ranging from a median of $46,000 in Western Europe to $4,000 in South Asia, up 3.2% year over year in 2026.
Siza's active job postings rose 96.3% in 2026 to 80, with new postings per month cooling from 68 in 2023 to 24 in 2026. Overall employee sentiment is positive and broadly stable.
Sourced from Revelio Labs workforce data.
- Headquarters
- Arnhem, Netherlands
- Founded
- 1999
- Industry
- Healthcare and Wellness Services
- Employees
- 778
- YoY
- -2.1% (+86)
As of March 2026
Siza workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Siza. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsSiza Annual Employee Count (2023-2026)
- Siza had 778 employees in 2026, a 2.1% decline (+86) from 2025.
- Siza had 758 employees in 2025, a 0.8% decline (+80) from 2024.
- Siza had 678 employees in 2024, a 0.7% increase (-1) from 2023.
- Siza had 679 employees in 2023, a 1.3% decline (-15) from 2022.
Siza's total workforce has grown from 699 employees in 2023 to 778 in 2026.
Stichting Siza quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 778 | +86 | -2.1% |
| 2025 | Q4 | 758 | +80 | -0.8% |
| 2025 | Q3 | 751 | +79 | -0.3% |
| 2025 | Q2 | 704 | +27 | -1.3% |
| 2025 | Q1 | 692 | +20 | +1.1% |
| 2024 | Q4 | 678 | -1 | +0.7% |
| 2024 | Q3 | 672 | -13 | +0.2% |
| 2024 | Q2 | 677 | -22 | -0.1% |
| 2024 | Q1 | 672 | -26 | +0.1% |
| 2023 | Q4 | 679 | -15 | -1.3% |
| 2023 | Q3 | 685 | -13 | -1.7% |
| 2023 | Q2 | 699 | -5 | +0.5% |
See Siza's complete headcount history, including quarterly breakdowns.
Get the DataSiza Employee Count by Region (2026)
Western Europe accounts for the largest share of Siza's global workforce with approximately 99% of total employees, followed by Sub-Saharan Africa and Central and Western Asia.
Siza employees by region
| Region | Employees | % of Total |
|---|---|---|
| Western Europe | 753 | 98.7% |
| Sub-Saharan Africa | 4 | 0.5% |
| Central and Western Asia | 2 | 0.3% |
| South America | 1 | 0.1% |
| South Asia | 1 | 0.1% |
| North America | 1 | 0.1% |
| Eastern Europe | 1 | 0.1% |
| Southern Europe | 0 | 0.0% |
| Central America and the Caribbean | 0 | 0.0% |
| North Africa | 0 | 0.0% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataSiza Employee Count by Department (2026)
Siza's employee groups are Finance and Operations (48.2%), Engineering (39.9%), and Sales and Marketing (11.9%).
Siza employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 372 | 48.2% |
| Engineering | 308 | 39.9% |
| Sales and Marketing | 92 | 11.9% |
Compare Siza's department mix to industry peers.
See Full DataSiza Employee Salary by Region (2026)
Siza's average employee salary is $51,130 globally. Employees in Western Europe receive the highest compensation. Pay is lowest in South Asia, at a median of $4,000.
Siza median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| Western Europe | $46,000 |
| North America | $38,000 |
| Sub-Saharan Africa | $34,000 |
| South Asia | $4,000 |
Unlock salary by role, level, and city — and compare to Siza's industry peers.
Unlock Salary DataSiza Job Openings and Hiring Trends (2023-2026)
- Siza had 80 active job postings in 2026, a 96.3% increase (-31) from 2025.
- Siza had 111 active job postings in 2025, a 102.0% increase (+75) from 2024.
- Siza had 36 active job postings in 2024, a 102.0% decline (-75) from 2023.
- Siza had 111 active job postings in 2023, a 22.0% increase from 2022.
- Hiring velocity in 2026: 24 new roles/month, down from 25 in 2025 and 29 in 2024.
Siza's active job postings rose 96.3% in 2026 to 80, with new postings per month cooling from 68 in 2023 to 24 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataSiza Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across Siza's workforce based on public professional data. Overall sentiment is positive and has held steady year over year in 2026.
Overall
Unlock the full sentiment breakdown by department, tenure, and trend over time.
Unlock SentimentSimilar Companies
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Frequently Asked Questions About Siza
- How fast is Siza growing?
- In 2026, Siza's headcount shrank 2.1% to 778 employees, up from 692 in 2025.
- See the full headcount history
- Where are Siza employees located?
- Most Siza employees are based in Western Europe (98.7% of headcount), followed by Sub-Saharan Africa and Central and Western Asia.
- Explore where the workforce is based
- What is the average salary at Siza?
- The average employee salary at Siza is approximately $51.1k per year.
- Analyze the salary distribution
- How many new job postings does Siza open per year?
- In Q1 2026, Siza opened 71 new job postings. In 2025, Siza opened 297 new job postings — about 25 per month.
- Track hiring trends by role
- When was Siza founded and where is it headquartered?
- Siza was founded in 1999 and is headquartered in Arnhem, Netherlands.
- Compare Siza to industry peers
Speak with a workforce expert about Siza.
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