How many employees work at Apellis Pharmaceuticals?
Apellis Pharmaceuticals, Inc. has approximately 726 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Apellis Pharmaceuticals's total headcount has declined 13.8% from 842 employees in 2023 to 726 in 2026.
Data source: Revelio LabsCoverage: Global workforce, 2023–2026Published July 2026
Is Apellis Pharmaceuticals hiring right now?
Yes, Apellis Pharmaceuticals is actively hiring. Apellis Pharmaceuticals had 55 active job postings in 2026, a 64.2% decline from 2025 — see job openings & hiring trends.
About Apellis Pharmaceuticals's Workforce
Apellis Pharmaceuticals, Inc. is a Pharmaceuticals company that employs 726 people worldwide as of March 2026. It is the 7th-largest by headcount among its peers. Founded in 2009, the company is headquartered in Waltham, Massachusetts.
Apellis Pharmaceuticals's workforce has declined 13.8% from 2023 to 2026, though it is up 4.4% year over year in 2026. It fell to a low of 684 in 2024 Q4 before recovering. Its workforce is concentrated most in the United States (88.5%), followed by Switzerland (3.5%) and Australia (1.7%), with Germany, its fastest-growing location.
Apellis Pharmaceuticals's largest functional groups are Finance and Operations (47.9%), Sales and Marketing (27.5%), and Engineering (24.7%), with Engineering growing fastest (up 2.0%). Median employee tenure is 2.4 years. The average salary is $195,293, ranging from a median of $221,000 in Northern Europe to $10,000 in Southern Asia.
Apellis Pharmaceuticals's active job postings fell 64.2% in 2026 to 55, with new postings per month cooling from 54 in 2023 to 39 in 2026. Overall employee sentiment is neutral but improving.
Sourced from Revelio Labs workforce data.
As of March 2026
Apellis Pharmaceuticals
workforce metrics
Headcount
726
4.4% YoY
Avg. Salary
$195.3k
0.9% YoY
Tenure
2.4yr
0.4yr YoY
Growth Rate
4.4%
3.5pts YoY
Hiring Rate
Attrition Rate
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Apellis Pharmaceuticals. Compare to peers, export the dataset, and access the full quarterly history.
- Apellis Pharmaceuticals had 726 employees in 2026, a 4.4% increase (+32) from 2025.
- Apellis Pharmaceuticals had 743 employees in 2025, a 8.2% increase (+59) from 2024.
- Apellis Pharmaceuticals had 684 employees in 2024, a 1.1% decline (-8) from 2023.
- Apellis Pharmaceuticals had 692 employees in 2023, a 9.2% decline (-66) from 2022.
Apellis Pharmaceuticals's total workforce has grown from 684 employees in 2024 to 726 in 2026. Apellis Pharmaceuticals's headcount peaked at 842 in 2023 before declining in 2024 and recovering through 2025 and 2026.
Apellis Pharmaceuticals, Inc. — quarterly employee count (2023–2026)
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 726 | +32 | +4.4% |
| 2025 | Q4 | 743 | +59 | +8.2% |
| 2025 | Q3 | 737 | +32 | +4.4% |
| 2025 | Q2 | 718 | +26 | +3.7% |
| 2025 | Q1 | 694 | +6 | +0.9% |
| 2024 | Q4 | 684 | -8 | -1.1% |
| 2024 | Q3 | 705 | -19 | -2.7% |
| 2024 | Q2 | 692 | -150 | -19.6% |
| 2024 | Q1 | 688 | -92 | -12.6% |
| 2023 | Q4 | 692 | -66 | -9.2% |
| 2023 | Q3 | 724 | -18 | -2.5% |
| 2023 | Q2 | 842 | +225 | +30.8% |
Want to see Apellis Pharmaceuticals's complete headcount history back to 2008, including quarterly breakdowns?
The United States accounts for the largest share of Apellis Pharmaceuticals's global workforce with approximately 89% of total employees, followed by Switzerland and Australia. Apellis Pharmaceuticals's headcount in Germany is growing fastest among its major locations, up 41.0% year over year in 2026.
Apellis Pharmaceuticals employees by country — 2026
| Country | Employees | % of Total | YoY % |
|---|---|---|---|
| United States | 588 | 88.5% | -2.3% |
| Switzerland | 23 | 3.5% | -0.4% |
| Australia | 11 | 1.7% | -7.7% |
| United Kingdom | 8 | 1.2% | -0.1% |
| Germany | 7 | 1.0% | +41.0% |
| Canada | 6 | 0.9% | +39.9% |
| India | 5 | 0.7% | +0.0% |
| Netherlands | 3 | 0.5% | +33.8% |
| Brazil | 3 | 0.5% | -3.7% |
| Bangladesh | 3 | 0.4% | +0.0% |
Drill into city-level data, hiring trends by region and historic geographic shifts
Apellis Pharmaceuticals's largest employee groups are Finance and Operations (47.9%), Sales and Marketing (27.5%), and Engineering (24.7%).
Apellis Pharmaceuticals employees by department — 2026
| Department | Employees | % of Total | YoY % |
|---|---|---|---|
| Finance and Operations | 350 | 47.9% | +0.6% |
| Sales and Marketing | 201 | 27.5% | +0.9% |
| Engineering | 180 | 24.7% | +2.0% |
Compare Apellis Pharmaceuticals's department mix to industry peers.
Apellis Pharmaceuticals's average employee salary is $195,293 globally. Employees in Northern Europe receive the highest compensation. Pay is lowest in Southern Asia, at a median of $10,000.
Apellis Pharmaceuticals median employee salary by region — 2026 (USD)
| Region | Median Salary |
|---|---|
| Northern Europe | $221,000 |
| Northern America | $186,000 |
| Western Europe | $177,000 |
| Pacific Islands | $177,000 |
| Southern America | $18,000 |
| Southern Asia | $10,000 |
Unlock salary by role, level, and city — and compare to Apellis Pharmaceuticals's industry peers.
- Apellis Pharmaceuticals had 55 active job postings in 2026, a 64.2% decline (-1) from 2025.
- Apellis Pharmaceuticals had 56 active job postings in 2025, a 50.7% decline (-38) from 2024.
- Apellis Pharmaceuticals had 94 active job postings in 2024, a 74.5% increase (+51) from 2023.
- Apellis Pharmaceuticals had 43 active job postings in 2023, a 42.2% decline from 2022.
- Hiring velocity in 2026: 39 new roles/month, down from 47 in 2025 and 33 in 2024. New metric
Apellis Pharmaceuticals's hiring is slowing: active job postings fell 64.2% in 2026 to 55, with new postings per month cooling from 54 in 2023 to 39 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Revelio Labs tracks employee sentiment across Apellis Pharmaceuticals'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 Pharmaceuticals Companies by Employee Count
- How fast is Apellis Pharmaceuticals growing?
- In 2026, Apellis Pharmaceuticals's headcount grew 4.4% to 726 employees, up from 694 in 2025.
- Where are Apellis Pharmaceuticals employees located?
- Most Apellis Pharmaceuticals employees are based in the United States (88.5% of headcount), followed by Switzerland and Australia.
- What is the average salary at Apellis Pharmaceuticals?
- The average employee salary at Apellis Pharmaceuticals is approximately $195.3k per year.
- How many people does Apellis Pharmaceuticals hire per year?
- In 2026, Apellis Pharmaceuticals opened roughly 468 new roles — about 39 per month.
- When was Apellis Pharmaceuticals founded and where is it headquartered?
- Apellis Pharmaceuticals was founded in 2009 and is headquartered in Waltham, Massachusetts.
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