How many employees work at Spark Therapeutics?

Spark Therapeutics, Inc. has approximately 207 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Spark Therapeutics’s total headcount has declined 79.8% from 1,025 employees in 2023 to 207 in 2026.

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

Is Spark Therapeutics hiring right now?

No, Spark Therapeutics is not actively hiring. Spark Therapeutics had 0 active job postings in 2026, a 200.0% decline from 2025 — see job openings & hiring trends.

About Spark Therapeutics’s Workforce

Spark Therapeutics, Inc. is a Pharmaceuticals company that employs 207 people worldwide as of March 2026. It is the 11th-largest by headcount among its peers. Founded in 2013, the company is headquartered in Philadelphia, Pennsylvania.

Spark Therapeutics's workforce has declined 79.8% from 2023 to 2026, down 36.7% year over year in 2026. It fell to a low of 207 in 2026 Q1 before recovering. Its workforce is concentrated most in North America (95.4%), followed by East Asia (1.5%) and Sub-Saharan Africa (1.4%).

Spark Therapeutics's functional groups are Finance and Operations (47.3%), Engineering (27.0%), and Sales and Marketing (25.7%). The average salary is $138,453, highest in North America at a median of $131,000, down 5.4% year over year in 2026.

Spark Therapeutics's active job postings fell 200.0% in 2026 to 0, with new postings per month cooling from 42 in 2023 to 0 in 2026. Overall employee sentiment is neutral but improving.

Sourced from Revelio Labs workforce data.

Headquarters
Philadelphia, Pennsylvania
Founded
2013
Industry
Pharmaceuticals
Employees
207
YoY
-36.7% (-529)

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Spark Therapeutics Annual Employee Count (2023-2026)

Interactive chart of Spark Therapeutics annual worldwide employee count from 2023 to 2026.
  • Spark Therapeutics had 207 employees in 2026, a 36.7% decline (-529) from 2025.
  • Spark Therapeutics had 211 employees in 2025, a 37.5% decline (-574) from 2024.
  • Spark Therapeutics had 785 employees in 2024, a 18.2% decline (-278) from 2023.
  • Spark Therapeutics had 1,063 employees in 2023, a 0.4% increase (+26) from 2022.

Spark Therapeutics's total workforce has declined from 1,025 employees in 2023 to 207 in 2026.

Spark Therapeutics, Inc. quarterly employee count

YearQtrEmployeesYoY ChangeYoY %
2026Q1207-529-36.7%
2025Q4211-574-37.5%
2025Q3245-594-35.4%
2025Q2361-635-31.9%
2025Q1736-325-19.7%
2024Q4785-278-18.2%
2024Q3839-222-15.3%
2024Q2996-29-3.9%
2024Q11,061+58-0.0%
2023Q41,063+26+0.4%
2023Q31,061-9-0.4%
2023Q21,025-27-1.6%

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Spark Therapeutics Employee Count by Region (2026)

North America accounts for the largest share of Spark Therapeutics's global workforce with approximately 95% of total employees, followed by East Asia and Sub-Saharan Africa.

Spark Therapeutics employees by region

RegionEmployees% of Total
North America19495.4%
East Asia31.5%
Sub-Saharan Africa31.4%
Northern Europe10.5%
South Asia10.5%
Central and Western Asia10.4%
Western Europe10.3%

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Spark Therapeutics Employee Count by Department (2026)

Spark Therapeutics's employee groups are Finance and Operations (47.3%), Engineering (27.0%), and Sales and Marketing (25.7%).

Spark Therapeutics employees by department

DepartmentEmployees% of Total
Finance and Operations9847.3%
Engineering5627.0%
Sales and Marketing5325.7%

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Spark Therapeutics Employee Salary by Region (2026)

Spark Therapeutics's average employee salary is $138,453 globally. Employees in North America receive the highest compensation.

Spark Therapeutics median employee salary by region (USD)

RegionMedian Salary
North America$131,000

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Spark Therapeutics Job Openings and Hiring Trends (2023-2026)

Interactive chart of Spark Therapeutics annual active job postings from 2023 to 2026.
  • Spark Therapeutics had 0 active job postings in 2026, a 200.0% decline from 2025.
  • Spark Therapeutics had 0 active job postings in 2025, a 200.0% decline (-14) from 2024.
  • Spark Therapeutics had 14 active job postings in 2024, a 56.4% decline (-11) from 2023.
  • Spark Therapeutics had 25 active job postings in 2023, a 21.4% decline from 2022.
  • Hiring velocity in 2026: 0 new roles/month, down from 1 in 2025 and 13 in 2024.

Spark Therapeutics's hiring is slowing: active job postings fell 200.0% in 2026 to 0, with new postings per month cooling from 42 in 2023 to 0 in 2026.

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Spark Therapeutics Employee Sentiment (2026)

Revelio Labs tracks employee sentiment across Spark Therapeutics's workforce based on public professional data. Overall sentiment is neutral and has improved year over year in 2026.

Overall

NegativePositive

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Frequently Asked Questions About Spark Therapeutics

How fast is Spark Therapeutics growing?
In 2026, Spark Therapeutics's headcount shrank 36.7% to 207 employees, down from 736 in 2025.
See the full headcount history
Where are Spark Therapeutics employees located?
Most Spark Therapeutics employees are based in North America (95.4% of headcount), followed by East Asia and Sub-Saharan Africa.
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What is the average salary at Spark Therapeutics?
The average employee salary at Spark Therapeutics is approximately $138.5k per year.
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How many new job postings does Spark Therapeutics open per year?
In Q1 2026, Spark Therapeutics opened 0 new job postings. In 2025, Spark Therapeutics opened 7 new job postings — about 1 per month.
Track hiring trends by role
When was Spark Therapeutics founded and where is it headquartered?
Spark Therapeutics was founded in 2013 and is headquartered in Philadelphia, Pennsylvania.
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