How many employees does Alexion Pharmaceuticals have?

Alexion Pharmaceuticals, Inc. has approximately 6,935 total employees worldwide as of June 2026, according to Revelio Labs workforce intelligence data. Alexion Pharmaceuticals’s total headcount has grown 13.9% from 6,089 employees in 2023 to 6,935 in 2026.

Data source: Revelio LabsCoverage: Global workforce, 2023–2026Published August 2026

Is Alexion Pharmaceuticals hiring right now?

Yes, Alexion Pharmaceuticals is actively hiring. Alexion Pharmaceuticals had 354 active job postings in 2026, a 60.3% increase from 2025 — see job openings & hiring trends.

About Alexion Pharmaceuticals’s Workforce

Alexion Pharmaceuticals, Inc. is a Pharmaceuticals company that employs 6,935 people worldwide as of June 2026. It is the 9th-largest by headcount among its peers. Founded in 1992, the company is headquartered in Boston, Massachusetts.

Alexion Pharmaceuticals's workforce has grown 13.9% from 2023 to 2026, up 1.8% year over year in 2026. Its workforce is concentrated most in North America (46.0%), followed by Northern Europe (24.9%) and Southern Europe (9.8%).

Alexion Pharmaceuticals's functional groups are Finance and Operations (53.3%), Engineering (24.4%), and Sales and Marketing (22.3%), with Sales and Marketing growing fastest (up 2.9%). The average salary is $141,238, ranging from a median of $170,000 in North America to $77,000 in Northern Europe.

Alexion Pharmaceuticals's active job postings rose 60.3% in 2026 to 354, with new postings per month cooling from 524 in 2023 to 301 in 2026. Overall employee sentiment is neutral but declining.

Sourced from Revelio Labs workforce data.

Founded
1992
Industry
Pharmaceuticals
Employees
6,935
YoY
+1.8% (+122)

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Alexion Pharmaceuticals Annual Employee Count (2023-2026)

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Interactive chart of Alexion Pharmaceuticals annual worldwide employee count from 2023 to 2026.
  • Alexion Pharmaceuticals had 6,935 employees in 2026, a 1.8% increase (+122) from 2025.
  • Alexion Pharmaceuticals had 6,812 employees in 2025, a 4.2% increase (+277) from 2024.
  • Alexion Pharmaceuticals had 6,535 employees in 2024, a 5.0% increase (+311) from 2023.
  • Alexion Pharmaceuticals had 6,224 employees in 2023, a 10.8% increase (+606) from 2022.

Alexion Pharmaceuticals's total workforce has grown from 6,089 employees in 2023 to 6,935 in 2026.

Alexion Pharmaceuticals, Inc. quarterly employee count

YearQtrEmployeesYoY ChangeYoY %
2026Q26,935+122+1.8%
2026Q16,855+216+3.3%
2025Q46,812+277+4.2%
2025Q36,730+331+5.2%
2025Q26,813+441+6.9%
2025Q16,639+373+6.0%
2024Q46,535+311+5.0%
2024Q36,399+310+5.1%
2024Q26,372+322+5.3%
2024Q16,266+487+8.4%
2023Q46,224+606+10.8%
2023Q36,089+636+11.7%

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Alexion Pharmaceuticals Employee Count by Region (2026)

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North America accounts for the largest share of Alexion Pharmaceuticals's global workforce with approximately 46% of total employees, followed by Northern Europe and Southern Europe.

Alexion Pharmaceuticals employees by region

RegionEmployees% of Total
North America3,14646.0%
Northern Europe1,70224.9%
Southern Europe6699.8%
Western Europe6189.0%
East Asia2844.2%
South Asia961.4%
Pacific Islands851.2%
Central and Western Asia841.2%
Eastern Europe661.0%
South America410.6%

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Alexion Pharmaceuticals Employee Count by Department (2026)

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Alexion Pharmaceuticals's employee groups are Finance and Operations (53.3%), Engineering (24.4%), and Sales and Marketing (22.3%).

Alexion Pharmaceuticals employees by department

DepartmentEmployees% of Total
Finance and Operations3,69653.3%
Engineering1,69024.4%
Sales and Marketing1,54522.3%

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Alexion Pharmaceuticals Employee Salary by Region (2026)

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Alexion Pharmaceuticals's average employee salary is $141,238 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)

RegionMedian Salary
North America$170,000
Pacific Islands$154,000
Western Europe$144,000
East Asia$90,000
Southern Europe$88,000
Northern Europe$77,000
Arab States$63,000
Eastern Europe$61,000
Central America and the Caribbean$61,000
Central and Western Asia$42,000
South America$39,000
Sub-Saharan Africa$25,000
North Africa$23,000
South Asia$15,000
Southeast Asia$10,000

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Alexion Pharmaceuticals Job Openings and Hiring Trends (2023-2026)

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Interactive chart of Alexion Pharmaceuticals annual active job postings from 2023 to 2026.
  • Alexion Pharmaceuticals had 354 active job postings in 2026, a 60.3% increase (-66) 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: 301 new roles/month, down from 328 in 2025 and 256 in 2024.

Alexion Pharmaceuticals's active job postings rose 60.3% in 2026 to 354, with new postings per month cooling from 524 in 2023 to 301 in 2026.

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Alexion 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

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Frequently Asked Questions About Alexion Pharmaceuticals

How fast is Alexion Pharmaceuticals growing?
In 2026, Alexion Pharmaceuticals's headcount grew 1.8% to 6,935 employees, up from 6,813 in 2025.
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Where are Alexion Pharmaceuticals employees located?
Most Alexion Pharmaceuticals employees are based in North America (46.0% of headcount), followed by Northern Europe and Southern Europe.
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How many people work at Alexion Pharmaceuticals in North America?
About 3,146 people work at Alexion Pharmaceuticals in North America, its largest region.
See headcount by region
What is the average salary at Alexion Pharmaceuticals?
The average employee salary at Alexion Pharmaceuticals is approximately $141.2k per year.
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How many new job postings does Alexion Pharmaceuticals open per year?
Through Q2 2026, Alexion Pharmaceuticals opened 1,808 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.
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