How many employees work at Alexion Pharmaceuticals?
Alexion Pharmaceuticals, Inc. has approximately 6,879 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Alexion Pharmaceuticals’s total headcount has grown 12.9% from 6,093 employees in 2023 to 6,879 in 2026.
Is Alexion Pharmaceuticals hiring right now?
Yes, Alexion Pharmaceuticals is actively hiring. Alexion Pharmaceuticals had 417 active job postings in 2026, a 40.0% increase from 2025 — see job openings & hiring trends.
About Alexion Pharmaceuticals’s Workforce
Alexion Pharmaceuticals, Inc. is a Pharmaceuticals company that employs 6,879 people worldwide as of March 2026. It is the 7th-largest by headcount among its peers. Founded in 1992, the company is headquartered in Boston, Massachusetts.
Alexion Pharmaceuticals's workforce has grown 12.9% from 2023 to 2026, though it is down 0.4% year over year in 2026. Its workforce is concentrated most in North America (46.5%), followed by Northern Europe (24.5%) and Southern Europe (9.7%).
Alexion Pharmaceuticals's functional groups are Finance and Operations (53.3%), Engineering (24.5%), and Sales and Marketing (22.2%), with Sales and Marketing growing fastest (up 0.8%). The average salary is $142,060, ranging from a median of $172,000 in North America to $77,000 in Northern Europe, down 1.1% year over year in 2026.
Alexion Pharmaceuticals's active job postings rose 40.0% in 2026 to 417, with new postings per month cooling from 549 in 2023 to 339 in 2026. Overall employee sentiment is neutral but declining.
Sourced from Revelio Labs workforce data.
- Headquarters
- Boston, Massachusetts
- Founded
- 1992
- Industry
- Pharmaceuticals
- Employees
- 6,879
- YoY
- -0.4% (+197)
As of March 2026
Alexion Pharmaceuticals workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Alexion Pharmaceuticals. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsAlexion Pharmaceuticals Annual Employee Count (2023-2026)
- Alexion Pharmaceuticals had 6,879 employees in 2026, a 0.4% decline (+197) from 2025.
- Alexion Pharmaceuticals had 6,841 employees in 2025, a 0.6% decline (+258) from 2024.
- Alexion Pharmaceuticals had 6,583 employees in 2024, a 0.4% decline (+324) from 2023.
- Alexion Pharmaceuticals had 6,259 employees in 2023, a 1.5% increase (+597) from 2022.
Alexion Pharmaceuticals's total workforce has grown from 6,093 employees in 2023 to 6,879 in 2026.
Alexion Pharmaceuticals, Inc. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 6,879 | +197 | -0.4% |
| 2025 | Q4 | 6,841 | +258 | -0.6% |
| 2025 | Q3 | 6,767 | +323 | -0.4% |
| 2025 | Q2 | 6,853 | +443 | +0.1% |
| 2025 | Q1 | 6,682 | +383 | +0.1% |
| 2024 | Q4 | 6,583 | +324 | -0.4% |
| 2024 | Q3 | 6,444 | +311 | +0.0% |
| 2024 | Q2 | 6,410 | +317 | +0.2% |
| 2024 | Q1 | 6,299 | +476 | +0.7% |
| 2023 | Q4 | 6,259 | +597 | +1.5% |
| 2023 | Q3 | 6,133 | +634 | +1.3% |
| 2023 | Q2 | 6,093 | +616 | +1.0% |
See Alexion Pharmaceuticals's complete headcount history, including quarterly breakdowns.
Get the DataAlexion Pharmaceuticals Employee Count by Region (2026)
North America accounts for the largest share of Alexion Pharmaceuticals's global workforce with approximately 47% of total employees, followed by Northern Europe and Southern Europe.
Alexion Pharmaceuticals employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 3,151 | 46.5% |
| Northern Europe | 1,664 | 24.5% |
| Southern Europe | 659 | 9.7% |
| Western Europe | 615 | 9.1% |
| East Asia | 280 | 4.1% |
| South Asia | 89 | 1.3% |
| Pacific Islands | 85 | 1.3% |
| Central and Western Asia | 85 | 1.2% |
| Eastern Europe | 61 | 0.9% |
| South America | 43 | 0.6% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataAlexion Pharmaceuticals Employee Count by Department (2026)
Alexion Pharmaceuticals's employee groups are Finance and Operations (53.3%), Engineering (24.5%), and Sales and Marketing (22.2%).
Alexion Pharmaceuticals employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 3,666 | 53.3% |
| Engineering | 1,682 | 24.5% |
| Sales and Marketing | 1,525 | 22.2% |
Compare Alexion Pharmaceuticals's department mix to industry peers.
See Full DataAlexion Pharmaceuticals Employee Salary by Region (2026)
Alexion Pharmaceuticals's average employee salary is $142,060 globally. Employees in North America receive the highest compensation, with median pay approximately 1.2x the global average. Pay is lowest in Northern Europe, at a median of $77,000.
Alexion Pharmaceuticals median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| North America | $172,000 |
| Pacific Islands | $153,000 |
| Western Europe | $142,000 |
| East Asia | $89,000 |
| Southern Europe | $89,000 |
| Northern Europe | $77,000 |
| Central America and the Caribbean | $61,000 |
| Eastern Europe | $60,000 |
| Central and Western Asia | $42,000 |
| South America | $36,000 |
| Arab States | $35,000 |
| Sub-Saharan Africa | $25,000 |
| North Africa | $23,000 |
| Southeast Asia | $20,000 |
| South Asia | $15,000 |
Unlock salary by role, level, and city — and compare to Alexion Pharmaceuticals's industry peers.
Unlock Salary DataAlexion Pharmaceuticals Job Openings and Hiring Trends (2023-2026)
- Alexion Pharmaceuticals had 417 active job postings in 2026, a 40.0% increase (-3) from 2025.
- Alexion Pharmaceuticals had 420 active job postings in 2025, a 94.2% increase (+269) from 2024.
- Alexion Pharmaceuticals had 151 active job postings in 2024, a 115.8% decline (-415) from 2023.
- Alexion Pharmaceuticals had 566 active job postings in 2023, a 0.5% increase from 2022.
- Hiring velocity in 2026: 339 new roles/month, up from 328 in 2025 and 256 in 2024.
Alexion Pharmaceuticals's active job postings rose 40.0% in 2026 to 417, with new postings per month cooling from 549 in 2023 to 339 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataAlexion Pharmaceuticals Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across Alexion Pharmaceuticals'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 Alexion Pharmaceuticals
- How fast is Alexion Pharmaceuticals growing?
- In 2026, Alexion Pharmaceuticals's headcount shrank 0.4% to 6,879 employees, up from 6,682 in 2025.
- See the full headcount history
- Where are Alexion Pharmaceuticals employees located?
- Most Alexion Pharmaceuticals employees are based in North America (46.5% of headcount), followed by Northern Europe and Southern Europe.
- Explore where the workforce is based
- What is the average salary at Alexion Pharmaceuticals?
- The average employee salary at Alexion Pharmaceuticals is approximately $142.1k per year.
- Analyze the salary distribution
- How many new job postings does Alexion Pharmaceuticals open per year?
- In Q1 2026, Alexion Pharmaceuticals opened 1,017 new job postings. In 2025, Alexion Pharmaceuticals opened 3,936 new job postings — about 328 per month.
- Track hiring trends by role
- When was Alexion Pharmaceuticals founded and where is it headquartered?
- Alexion Pharmaceuticals was founded in 1992 and is headquartered in Boston, Massachusetts.
- Compare Alexion Pharmaceuticals to industry peers
Speak with a workforce expert about Alexion Pharmaceuticals.
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