How many employees work at Interserve?
Interserve Plc has approximately 5,601 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Interserve's total headcount has grown 3.1% from 5,435 employees in 2023 to 5,601 in 2026.
Data source: Revelio LabsCoverage: Global workforce, 2023–2026Published July 2026
Is Interserve hiring right now?
Yes, Interserve is actively hiring. Interserve had 342 active job postings in 2026, a 98.0% increase from 2025 — see job openings & hiring trends.
About Interserve's Workforce
Interserve Plc is an Engineering and Construction Services company that employs 5,601 people worldwide as of March 2026. It is the 7th-largest by headcount among its peers. Founded in 1884, the company is headquartered in London, United Kingdom.
Interserve's workforce has grown 3.1% from 2023 to 2026, up 0.3% year over year in 2026. Its workforce is concentrated most in the United Kingdom (53.3%), followed by Qatar (25.4%) and India (9.7%), with Australia, its fastest-growing location.
Interserve's largest functional groups are Finance and Operations (46.2%), Engineering (31.6%), and Sales and Marketing (22.3%), with Engineering growing fastest (up 1.0%). Median employee tenure is 6.1 years. The average salary is $51,143, ranging from a median of $58,000 in Northern Europe to $5,000 in Southern Asia.
Interserve's active job postings rose 98.0% in 2026 to 342, with new postings per month climbing from 104 in 2023 to 222 in 2026. Overall employee sentiment is neutral but improving.
Sourced from Revelio Labs workforce data.
As of March 2026
Interserve
workforce metrics
Headcount
5.6k
0.3% YoY
Avg. Salary
$51.1k
0.4% YoY
Tenure
6.1yr
0.3yr YoY
Growth Rate
0.3%
0.6pts YoY
Hiring Rate
Attrition Rate
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Interserve. Compare to peers, export the dataset, and access the full quarterly history.
- Interserve had 5,601 employees in 2026, a 0.3% increase (+16) from 2025.
- Interserve had 5,634 employees in 2025, a 1.2% decline (-71) from 2024.
- Interserve had 5,705 employees in 2024, a 3.3% increase (+187) from 2023.
- Interserve had 5,518 employees in 2023, a 2.1% increase (+113) from 2022.
Interserve's total workforce has grown from 5,435 employees in 2023 to 5,601 in 2026.
Interserve Plc — quarterly employee count (2023–2026)
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 5,601 | +16 | +0.3% |
| 2025 | Q4 | 5,634 | -71 | -1.2% |
| 2025 | Q3 | 5,649 | -495 | -8.4% |
| 2025 | Q2 | 5,601 | -30 | -0.5% |
| 2025 | Q1 | 5,585 | +49 | +0.9% |
| 2024 | Q4 | 5,705 | +187 | +3.3% |
| 2024 | Q3 | 6,144 | +634 | +10.9% |
| 2024 | Q2 | 5,631 | +196 | +3.5% |
| 2024 | Q1 | 5,536 | +101 | +1.9% |
| 2023 | Q4 | 5,518 | +113 | +2.1% |
| 2023 | Q3 | 5,510 | +49 | +0.9% |
| 2023 | Q2 | 5,435 | -78 | -1.4% |
Want to see Interserve's complete headcount history back to 2008, including quarterly breakdowns?
The United Kingdom accounts for the largest share of Interserve's global workforce with approximately 53% of total employees, followed by Qatar and India. Interserve's headcount in Australia is growing fastest among its major locations, up 3.7% year over year in 2026.
Interserve employees by country — 2026
| Country | Employees | % of Total | YoY % |
|---|---|---|---|
| United Kingdom | 2,934 | 53.3% | +1.2% |
| Qatar | 1,396 | 25.4% | -2.6% |
| India | 532 | 9.7% | -0.2% |
| Australia | 96 | 1.7% | +3.7% |
| United States | 91 | 1.6% | -0.3% |
| Spain | 76 | 1.4% | +0.0% |
| United Arab Emirates | 55 | 1.0% | -2.2% |
| Nepal | 48 | 0.9% | +0.0% |
| Bangladesh | 40 | 0.7% | +0.0% |
| Saudi Arabia | 25 | 0.5% | +0.0% |
Drill into city-level data, hiring trends by region and historic geographic shifts
Interserve's largest employee groups are Finance and Operations (46.2%), Engineering (31.6%), and Sales and Marketing (22.3%).
Interserve employees by department — 2026
| Department | Employees | % of Total | YoY % |
|---|---|---|---|
| Finance and Operations | 2,559 | 46.2% | -0.7% |
| Engineering | 1,749 | 31.6% | +1.0% |
| Sales and Marketing | 1,236 | 22.3% | +0.1% |
Compare Interserve's department mix to industry peers.
Interserve's average employee salary is $51,143 globally. Employees in Northern Europe receive the highest compensation. Pay is lowest in Southern Asia, at a median of $5,000.
Interserve median employee salary by region — 2026 (USD)
| Region | Median Salary |
|---|---|
| Western Europe | $64,000 |
| Northern Europe | $58,000 |
| Pacific Islands | $58,000 |
| Northern America | $55,000 |
| Arab States | $42,000 |
| Southern Europe | $28,000 |
| Eastern Europe | $21,000 |
| Southern America | $11,000 |
| Sub-Saharan Africa | $11,000 |
| Northern Africa | $10,000 |
| South-Eastern Asia | $7,000 |
| Southern Asia | $5,000 |
Unlock salary by role, level, and city — and compare to Interserve's industry peers.
- Interserve had 342 active job postings in 2026, a 98.0% increase (+143) from 2025.
- Interserve had 199 active job postings in 2025, a 12.3% decline (-26) from 2024.
- Interserve had 225 active job postings in 2024, a 41.3% increase (+77) from 2023.
- Interserve had 148 active job postings in 2023, a 71.6% increase from 2022.
- Hiring velocity in 2026: 222 new roles/month, up from 128 in 2025 and 112 in 2024. New metric
Interserve's hiring is accelerating: active job postings rose 98.0% in 2026 to 342, with new postings per month climbing from 104 in 2023 to 222 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Revelio Labs tracks employee sentiment across Interserve's workforce based on public professional data. Overall sentiment is neutral and has improved year over year in 2026.
Overall
Unlock the full sentiment breakdown by department, tenure, and trend over time.
Similar Engineering and Construction Services Companies by Employee Count
- How fast is Interserve growing?
- In 2026, Interserve's headcount grew 0.3% to 5,601 employees, up from 5,585 in 2025.
- Where are Interserve employees located?
- Most Interserve employees are based in the United Kingdom (53.3% of headcount), followed by Qatar and India.
- What is the average salary at Interserve?
- The average employee salary at Interserve is approximately $51.1k per year.
- How many people does Interserve hire per year?
- In 2026, Interserve opened roughly 2,664 new roles — about 222 per month.
- When was Interserve founded and where is it headquartered?
- Interserve was founded in 1884 and is headquartered in London, United Kingdom.
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