How many employees work at John Sisk & Son?
John Sisk & Son (Europe) Ltd. has approximately 4,179 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. John Sisk & Son’s total headcount has declined 0.8% from 4,213 employees in 2023 to 4,179 in 2026.
Is John Sisk & Son hiring right now?
Yes, John Sisk & Son is actively hiring. John Sisk & Son had 197 active job postings in 2026, a 18.9% decline from 2025 — see job openings & hiring trends.
About John Sisk & Son’s Workforce
John Sisk & Son (Europe) Ltd. is an Engineering and Construction Services company that employs 4,179 people worldwide as of March 2026. It is the 8th-largest by headcount among its peers. Founded in 1859, the company is headquartered in Dublin, Ireland.
John Sisk & Son's workforce has declined 0.8% from 2023 to 2026, though it is up 0.5% year over year in 2026. It fell to a low of 4,179 in 2026 Q1 before recovering. Its workforce is concentrated most in Northern Europe (94.0%), followed by Western Europe (2.1%) and North America (1.5%).
John Sisk & Son's functional groups are Finance and Operations (53.6%), Engineering (26.2%), and Sales and Marketing (20.2%). The average salary is $72,402, ranging from a median of $78,000 in North America to $14,000 in Sub-Saharan Africa.
John Sisk & Son's active job postings fell 18.9% in 2026 to 197, with new postings per month cooling from 133 in 2023 to 79 in 2026. Overall employee sentiment is neutral and broadly stable.
Sourced from Revelio Labs workforce data.
- Headquarters
- Dublin, Ireland
- Founded
- 1859
- Industry
- Engineering and Construction Services
- Employees
- 4,179
- YoY
- +0.5% (-60)
As of March 2026
John Sisk & Son workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for John Sisk & Son. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsJohn Sisk & Son Annual Employee Count (2023-2026)
- John Sisk & Son had 4,179 employees in 2026, a 0.5% increase (-60) from 2025.
- John Sisk & Son had 4,249 employees in 2025, a 0.6% increase (-48) from 2024.
- John Sisk & Son had 4,297 employees in 2024, a 1.0% increase (-16) from 2023.
- John Sisk & Son had 4,313 employees in 2023, a 3.9% increase (+474) from 2022.
John Sisk & Son's total workforce has declined from 4,213 employees in 2023 to 4,179 in 2026. John Sisk & Son's headcount peaked at 4,408 in 2024.
John Sisk & Son (Europe) Ltd. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 4,179 | -60 | +0.5% |
| 2025 | Q4 | 4,249 | -48 | +0.6% |
| 2025 | Q3 | 4,275 | -116 | -0.0% |
| 2025 | Q2 | 4,285 | -123 | +0.2% |
| 2025 | Q1 | 4,239 | -84 | +0.5% |
| 2024 | Q4 | 4,297 | -16 | +1.0% |
| 2024 | Q3 | 4,391 | +118 | +2.3% |
| 2024 | Q2 | 4,408 | +195 | +2.3% |
| 2024 | Q1 | 4,323 | +371 | +3.3% |
| 2023 | Q4 | 4,313 | +474 | +3.9% |
| 2023 | Q3 | 4,273 | +552 | +3.9% |
| 2023 | Q2 | 4,213 | +579 | +4.3% |
See John Sisk & Son's complete headcount history, including quarterly breakdowns.
Get the DataJohn Sisk & Son Employee Count by Region (2026)
Northern Europe accounts for the largest share of John Sisk & Son's global workforce with approximately 94% of total employees, followed by Western Europe and North America.
John Sisk & Son employees by region
| Region | Employees | % of Total |
|---|---|---|
| Northern Europe | 3,840 | 94.0% |
| Western Europe | 87 | 2.1% |
| North America | 60 | 1.5% |
| Arab States | 29 | 0.7% |
| Sub-Saharan Africa | 18 | 0.4% |
| South Asia | 13 | 0.3% |
| Southern Europe | 11 | 0.3% |
| Pacific Islands | 9 | 0.2% |
| Central America and the Caribbean | 6 | 0.1% |
| Southeast Asia | 4 | 0.1% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataJohn Sisk & Son Employee Count by Department (2026)
John Sisk & Son's employee groups are Finance and Operations (53.6%), Engineering (26.2%), and Sales and Marketing (20.2%).
John Sisk & Son employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 2,225 | 53.6% |
| Engineering | 1,090 | 26.2% |
| Sales and Marketing | 838 | 20.2% |
Compare John Sisk & Son's department mix to industry peers.
See Full DataJohn Sisk & Son Employee Salary by Region (2026)
John Sisk & Son's average employee salary is $72,402 globally. Employees in North America receive the highest compensation. Pay is lowest in Sub-Saharan Africa, at a median of $14,000.
John Sisk & Son median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| North America | $78,000 |
| Western Europe | $77,000 |
| Northern Europe | $64,000 |
| Arab States | $59,000 |
| Southern Europe | $46,000 |
| Pacific Islands | $45,000 |
| Central America and the Caribbean | $23,000 |
| Sub-Saharan Africa | $14,000 |
| Southeast Asia | $8,000 |
| South Asia | $5,000 |
Unlock salary by role, level, and city — and compare to John Sisk & Son's industry peers.
Unlock Salary DataJohn Sisk & Son Job Openings and Hiring Trends (2023-2026)
- John Sisk & Son had 197 active job postings in 2026, a 18.9% decline (+36) from 2025.
- John Sisk & Son had 161 active job postings in 2025, a 45.6% decline (-95) from 2024.
- John Sisk & Son had 256 active job postings in 2024, a 10.7% increase (+26) from 2023.
- John Sisk & Son had 230 active job postings in 2023, a 81.3% increase from 2022.
- Hiring velocity in 2026: 79 new roles/month, down from 169 in 2025 and 184 in 2024.
John Sisk & Son's hiring is slowing: active job postings fell 18.9% in 2026 to 197, with new postings per month cooling from 133 in 2023 to 79 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataJohn Sisk & Son Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across John Sisk & Son's workforce based on public professional data. Overall sentiment is neutral and has held steady year over year in 2026.
Overall
Unlock the full sentiment breakdown by department, tenure, and trend over time.
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Frequently Asked Questions About John Sisk & Son
- How fast is John Sisk & Son growing?
- In 2026, John Sisk & Son's headcount grew 0.5% to 4,179 employees, down from 4,239 in 2025.
- See the full headcount history
- Where are John Sisk & Son employees located?
- Most John Sisk & Son employees are based in Northern Europe (94.0% of headcount), followed by Western Europe and North America.
- Explore where the workforce is based
- What is the average salary at John Sisk & Son?
- The average employee salary at John Sisk & Son is approximately $72.4k per year.
- Analyze the salary distribution
- How many new job postings does John Sisk & Son open per year?
- In Q1 2026, John Sisk & Son opened 237 new job postings. In 2025, John Sisk & Son opened 2,024 new job postings — about 169 per month.
- Track hiring trends by role
- When was John Sisk & Son founded and where is it headquartered?
- John Sisk & Son was founded in 1859 and is headquartered in Dublin, Ireland.
- Compare John Sisk & Son to industry peers
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