How many employees work at John Sisk & Son?
John Sisk & Son (Europe) Ltd. has approximately 4,508 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. John Sisk & Son’s total headcount has declined 0.0% from 4,508 employees in 2023 to 4,508 in 2026.
Is John Sisk & Son hiring right now?
Yes, John Sisk & Son is actively hiring. John Sisk & Son had 220 active job postings in 2026, a 7.9% 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 4,508 people worldwide as of March 2026. It is the 7th-largest by headcount among its peers. Founded in 1859, the company is headquartered in Dublin, Ireland.
John Sisk & Son's workforce has held roughly steady from 2023 to 2026, up 0.8% year over year in 2026. Its workforce is concentrated most in Northern Europe (95.1%), followed by Western Europe (2.5%) and North America (1.2%).
John Sisk & Son's functional groups are Finance and Operations (54.6%), Engineering (26.3%), and Sales and Marketing (19.1%). The average salary is $73,316, ranging from a median of $77,000 in Western Europe to $56,000 in Pacific Islands.
John Sisk & Son's active job postings fell 7.9% in 2026 to 220, with new postings per month cooling from 133 in 2023 to 88 in 2026. Overall employee sentiment is neutral but declining.
Sourced from Revelio Labs workforce data.
- Headquarters
- Dublin, Ireland
- Founded
- 1859
- Industry
- Engineering and Construction Services
- Employees
- 4,508
- YoY
- +0.8% (-61)
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 4,508 employees in 2026, a 0.8% increase (-61) from 2025.
- John Sisk & Son had 4,587 employees in 2025, a 0.7% increase (-53) from 2024.
- John Sisk & Son had 4,640 employees in 2024, a 1.4% increase (-2) from 2023.
- John Sisk & Son had 4,642 employees in 2023, a 4.6% increase (+629) from 2022.
John Sisk & Son's total workforce has grown from 4,508 employees in 2023 to 4,508 in 2026.
John Sisk & Son (Europe) Ltd. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 4,508 | -61 | +0.8% |
| 2025 | Q4 | 4,587 | -53 | +0.7% |
| 2025 | Q3 | 4,639 | -130 | +0.0% |
| 2025 | Q2 | 4,642 | -140 | +0.5% |
| 2025 | Q1 | 4,569 | -87 | +0.8% |
| 2024 | Q4 | 4,640 | -2 | +1.4% |
| 2024 | Q3 | 4,769 | +185 | +3.0% |
| 2024 | Q2 | 4,782 | +274 | +2.6% |
| 2024 | Q1 | 4,656 | +495 | +3.8% |
| 2023 | Q4 | 4,642 | +629 | +4.6% |
| 2023 | Q3 | 4,584 | +723 | +4.7% |
| 2023 | Q2 | 4,508 | +756 | +5.4% |
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 95% of total employees, followed by Western Europe and North America.
John Sisk & Son employees by region
| Region | Employees | % of Total |
|---|---|---|
| Northern Europe | 4,197 | 95.1% |
| Western Europe | 110 | 2.5% |
| North America | 55 | 1.2% |
| Arab States | 19 | 0.4% |
| Pacific Islands | 10 | 0.2% |
| Southern Europe | 9 | 0.2% |
| Central America and the Caribbean | 6 | 0.1% |
| Sub-Saharan Africa | 3 | 0.1% |
| South Asia | 1 | 0.0% |
| Eastern Europe | 1 | 0.0% |
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 (54.6%), Engineering (26.3%), and Sales and Marketing (19.1%).
John Sisk & Son employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 2,460 | 54.6% |
| Engineering | 1,184 | 26.3% |
| Sales and Marketing | 860 | 19.1% |
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 $73,316 globally. Employees in Western Europe receive the highest compensation. Pay is lowest in Pacific Islands, at a median of $56,000.
John Sisk & Son median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| Western Europe | $77,000 |
| North America | $73,000 |
| Northern Europe | $64,000 |
| Southern Europe | $61,000 |
| Arab States | $57,000 |
| Pacific Islands | $56,000 |
| Central America and the Caribbean | $23,000 |
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 220 active job postings in 2026, a 7.9% decline (+45) from 2025.
- John Sisk & Son had 175 active job postings in 2025, a 37.6% decline (-81) 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: 88 new roles/month, down from 172 in 2025 and 184 in 2024.
John Sisk & Son's hiring is slowing: active job postings fell 7.9% in 2026 to 220, with new postings per month cooling from 133 in 2023 to 88 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 declined 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 0.8% to 4,508 employees, down from 4,569 in 2025.
- See the full headcount history
- Where are John Sisk & Son employees located?
- Most John Sisk & Son employees are based in Northern Europe (95.1% 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 $73.3k 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 264 new job postings. In 2025, John Sisk & Son opened 2,059 new job postings — about 172 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
Speak with a workforce expert about John Sisk & Son.
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