How many employees work at Costain Group?
Costain Group Plc (COST) has approximately 3,412 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Costain Group’s total headcount has grown 6.1% from 3,216 employees in 2023 to 3,412 in 2026.
Is Costain Group hiring right now?
Yes, Costain Group is actively hiring. Costain Group had 405 active job postings in 2026, a 56.3% increase from 2025 — see job openings & hiring trends.
About Costain Group’s Workforce
Costain Group Plc (COST) is an Engineering and Construction Services company that employs 3,412 people worldwide as of March 2026. It is the 11th-largest by headcount among its peers. Founded in 1978, the company is headquartered in London, United Kingdom and trades on the London Stock Exchange.
Costain Group's workforce has grown 6.1% from 2023 to 2026, up 1.1% year over year in 2026. It fell to a low of 3,116 in 2025 Q1 before recovering. Its workforce is concentrated most in Northern Europe (94.9%), followed by North America (1.7%) and Sub-Saharan Africa (1.4%).
Costain Group's functional groups are Finance and Operations (47.4%), Engineering (29.3%), and Sales and Marketing (23.2%), with Engineering growing fastest (up 6.3%). The average salary is $84,865, ranging from a median of $103,000 in North America to $11,000 in South Asia.
Costain Group's active job postings rose 56.3% in 2026 to 405, with new postings per month cooling from 213 in 2023 to 179 in 2026. Overall employee sentiment is neutral but declining.
Sourced from Revelio Labs workforce data.
- Ticker
- London Stock Exchange: COST
- Headquarters
- London, United Kingdom
- Founded
- 1978
- Industry
- Engineering and Construction Services
- Employees
- 3,412
- YoY
- +1.1% (+296)
As of March 2026
Costain Group workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Costain Group. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsCostain Group Annual Employee Count (2023-2026)
- Costain Group had 3,412 employees in 2026, a 1.1% increase (+296) from 2025.
- Costain Group had 3,298 employees in 2025, a 0.3% increase (+180) from 2024.
- Costain Group had 3,118 employees in 2024, a 0.3% increase (-24) from 2023.
- Costain Group had 3,142 employees in 2023, a 0.2% increase (-85) from 2022.
Costain Group's total workforce has grown from 3,216 employees in 2023 to 3,412 in 2026.
Costain Group Plc quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 3,412 | +296 | +1.1% |
| 2025 | Q4 | 3,298 | +180 | +0.3% |
| 2025 | Q3 | 3,248 | +130 | +0.2% |
| 2025 | Q2 | 3,153 | +23 | -0.4% |
| 2025 | Q1 | 3,116 | -11 | -0.3% |
| 2024 | Q4 | 3,118 | -24 | +0.3% |
| 2024 | Q3 | 3,118 | -50 | +0.7% |
| 2024 | Q2 | 3,130 | -86 | +0.3% |
| 2024 | Q1 | 3,127 | -101 | +0.4% |
| 2023 | Q4 | 3,142 | -85 | +0.2% |
| 2023 | Q3 | 3,168 | -73 | +0.2% |
| 2023 | Q2 | 3,216 | +4 | +0.9% |
See Costain Group's complete headcount history, including quarterly breakdowns.
Get the DataCostain Group Employee Count by Region (2026)
Northern Europe accounts for the largest share of Costain Group's global workforce with approximately 95% of total employees, followed by North America and Sub-Saharan Africa.
Costain Group employees by region
| Region | Employees | % of Total |
|---|---|---|
| Northern Europe | 3,141 | 94.9% |
| North America | 56 | 1.7% |
| Sub-Saharan Africa | 47 | 1.4% |
| Arab States | 23 | 0.7% |
| South Asia | 9 | 0.3% |
| Pacific Islands | 7 | 0.2% |
| Southern Europe | 7 | 0.2% |
| Southeast Asia | 4 | 0.1% |
| Western Europe | 3 | 0.1% |
| Central America and the Caribbean | 3 | 0.1% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataCostain Group Employee Count by Department (2026)
Costain Group's employee groups are Finance and Operations (47.4%), Engineering (29.3%), and Sales and Marketing (23.2%).
Costain Group employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 1,609 | 47.4% |
| Engineering | 995 | 29.3% |
| Sales and Marketing | 788 | 23.2% |
Compare Costain Group's department mix to industry peers.
See Full DataCostain Group Employee Salary by Region (2026)
Costain Group's average employee salary is $84,865 globally. Employees in North America receive the highest compensation, with median pay approximately 1.2x the global average. Pay is lowest in South Asia, at a median of $11,000.
Costain Group median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| North America | $103,000 |
| East Asia | $97,000 |
| Pacific Islands | $96,000 |
| Central America and the Caribbean | $81,000 |
| Northern Europe | $76,000 |
| Western Europe | $73,000 |
| Arab States | $61,000 |
| Eastern Europe | $38,000 |
| Southern Europe | $28,000 |
| South America | $18,000 |
| Southeast Asia | $12,000 |
| Sub-Saharan Africa | $11,000 |
| South Asia | $11,000 |
| North Africa | $7,000 |
Unlock salary by role, level, and city — and compare to Costain Group's industry peers.
Unlock Salary DataCostain Group Job Openings and Hiring Trends (2023-2026)
- Costain Group had 405 active job postings in 2026, a 56.3% increase (+161) from 2025.
- Costain Group had 244 active job postings in 2025, a 2.0% decline (-5) from 2024.
- Costain Group had 249 active job postings in 2024, a 0.8% decline (-2) from 2023.
- Costain Group had 251 active job postings in 2023, a 21.4% decline from 2022.
- Hiring velocity in 2026: 179 new roles/month, up from 159 in 2025 and 207 in 2024.
Costain Group's active job postings rose 56.3% in 2026 to 405, with new postings per month cooling from 213 in 2023 to 179 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataCostain Group Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across Costain Group'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.
Unlock SentimentSimilar Companies
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Frequently Asked Questions About Costain Group
- How fast is Costain Group growing?
- In 2026, Costain Group's headcount grew 1.1% to 3,412 employees, up from 3,116 in 2025.
- See the full headcount history
- Where are Costain Group employees located?
- Most Costain Group employees are based in Northern Europe (94.9% of headcount), followed by North America and Sub-Saharan Africa.
- Explore where the workforce is based
- What is the average salary at Costain Group?
- The average employee salary at Costain Group is approximately $84.9k per year.
- Analyze the salary distribution
- How many new job postings does Costain Group open per year?
- In Q1 2026, Costain Group opened 538 new job postings. In 2025, Costain Group opened 1,906 new job postings — about 159 per month.
- Track hiring trends by role
- When was Costain Group founded and where is it headquartered?
- Costain Group was founded in 1978 and is headquartered in London, United Kingdom.
- Compare Costain Group to industry peers
Speak with a workforce expert about Costain Group.
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