How many employees work at Apellis Pharmaceuticals?
Apellis Pharmaceuticals, Inc. has approximately 628 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Apellis Pharmaceuticals’s total headcount has declined 13.3% from 724 employees in 2023 to 628 in 2026.
Is Apellis Pharmaceuticals hiring right now?
Yes, Apellis Pharmaceuticals is actively hiring. Apellis Pharmaceuticals had 55 active job postings in 2026, a 65.0% decline from 2025 — see job openings & hiring trends.
About Apellis Pharmaceuticals’s Workforce
Apellis Pharmaceuticals, Inc. is a Pharmaceuticals company that employs 628 people worldwide as of March 2026. It is the 8th-largest by headcount among its peers. Founded in 2009, the company is headquartered in Waltham, Massachusetts.
Apellis Pharmaceuticals's workforce has declined 13.3% from 2023 to 2026, though it is up 1.9% year over year in 2026. It fell to a low of 594 in 2024 Q4 before recovering. Its workforce is concentrated most in North America (89.5%), followed by Western Europe (4.8%) and Pacific Islands (1.7%).
Apellis Pharmaceuticals's functional groups are Finance and Operations (49.0%), Sales and Marketing (26.7%), and Engineering (24.3%), with Engineering growing fastest (up 2.4%). The average salary is $196,428, ranging from a median of $196,000 in Northern Europe to $10,000 in South Asia.
Apellis Pharmaceuticals's active job postings fell 65.0% 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.
- Headquarters
- Waltham, Massachusetts
- Founded
- 2009
- Industry
- Pharmaceuticals
- Employees
- 628
- YoY
- +1.9% (+26)
As of March 2026
Apellis Pharmaceuticals workforce metrics
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.
Unlock MetricsApellis Pharmaceuticals Annual Employee Count (2023-2026)
- Apellis Pharmaceuticals had 628 employees in 2026, a 1.9% increase (+26) from 2025.
- Apellis Pharmaceuticals had 635 employees in 2025, a 1.2% increase (+41) from 2024.
- Apellis Pharmaceuticals had 594 employees in 2024, a 2.2% increase (-2) from 2023.
- Apellis Pharmaceuticals had 596 employees in 2023, a 11.5% decline (-57) from 2022.
Apellis Pharmaceuticals's total workforce has grown from 594 employees in 2024 to 628 in 2026. Apellis Pharmaceuticals's headcount peaked at 724 in 2023 before declining in 2024 and recovering through 2025 and 2026.
Apellis Pharmaceuticals, Inc. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 628 | +26 | +1.9% |
| 2025 | Q4 | 635 | +41 | +1.2% |
| 2025 | Q3 | 632 | +22 | +0.8% |
| 2025 | Q2 | 622 | +22 | +0.7% |
| 2025 | Q1 | 602 | +6 | +0.9% |
| 2024 | Q4 | 594 | -2 | +2.2% |
| 2024 | Q3 | 610 | -13 | +1.1% |
| 2024 | Q2 | 600 | -124 | -10.7% |
| 2024 | Q1 | 596 | -78 | -11.8% |
| 2023 | Q4 | 596 | -57 | -11.5% |
| 2023 | Q3 | 623 | -13 | -9.3% |
| 2023 | Q2 | 724 | +195 | +3.5% |
See Apellis Pharmaceuticals's complete headcount history, including quarterly breakdowns.
Get the DataApellis Pharmaceuticals Employee Count by Region (2026)
North America accounts for the largest share of Apellis Pharmaceuticals's global workforce with approximately 90% of total employees, followed by Western Europe and Pacific Islands.
Apellis Pharmaceuticals employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 537 | 89.5% |
| Western Europe | 29 | 4.8% |
| Pacific Islands | 10 | 1.7% |
| South Asia | 8 | 1.4% |
| Northern Europe | 6 | 1.0% |
| South America | 3 | 0.5% |
| Sub-Saharan Africa | 2 | 0.4% |
| North Africa | 2 | 0.3% |
| Eastern Europe | 1 | 0.2% |
| Central and Western Asia | 1 | 0.1% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataApellis Pharmaceuticals Employee Count by Department (2026)
Apellis Pharmaceuticals's employee groups are Finance and Operations (49.0%), Sales and Marketing (26.7%), and Engineering (24.3%).
Apellis Pharmaceuticals employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 306 | 49.0% |
| Sales and Marketing | 167 | 26.7% |
| Engineering | 152 | 24.3% |
Compare Apellis Pharmaceuticals's department mix to industry peers.
See Full DataApellis Pharmaceuticals Employee Salary by Region (2026)
Apellis Pharmaceuticals's average employee salary is $196,428 globally. Employees in Northern Europe receive the highest compensation. Pay is lowest in South Asia, at a median of $10,000.
Apellis Pharmaceuticals median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| Northern Europe | $196,000 |
| North America | $185,000 |
| Western Europe | $176,000 |
| Pacific Islands | $162,000 |
| South America | $18,000 |
| South Asia | $10,000 |
Unlock salary by role, level, and city — and compare to Apellis Pharmaceuticals's industry peers.
Unlock Salary DataApellis Pharmaceuticals Job Openings and Hiring Trends (2023-2026)
- Apellis Pharmaceuticals had 55 active job postings in 2026, a 65.0% 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 80.6% increase (+54) from 2023.
- Apellis Pharmaceuticals had 40 active job postings in 2023, a 49.1% decline from 2022.
- Hiring velocity in 2026: 39 new roles/month, down from 47 in 2025 and 33 in 2024.
Apellis Pharmaceuticals's hiring is slowing: active job postings fell 65.0% 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.
Unlock Hiring DataApellis Pharmaceuticals Employee Sentiment (2026)
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.
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Frequently Asked Questions About Apellis Pharmaceuticals
- How fast is Apellis Pharmaceuticals growing?
- In 2026, Apellis Pharmaceuticals's headcount grew 1.9% to 628 employees, up from 602 in 2025.
- See the full headcount history
- Where are Apellis Pharmaceuticals employees located?
- Most Apellis Pharmaceuticals employees are based in North America (89.5% of headcount), followed by Western Europe and Pacific Islands.
- Explore where the workforce is based
- What is the average salary at Apellis Pharmaceuticals?
- The average employee salary at Apellis Pharmaceuticals is approximately $196.4k per year.
- Analyze the salary distribution
- How many new job postings does Apellis Pharmaceuticals open per year?
- In Q1 2026, Apellis Pharmaceuticals opened 117 new job postings. In 2025, Apellis Pharmaceuticals opened 559 new job postings — about 47 per month.
- Track hiring trends by role
- When was Apellis Pharmaceuticals founded and where is it headquartered?
- Apellis Pharmaceuticals was founded in 2009 and is headquartered in Waltham, Massachusetts.
- Compare Apellis Pharmaceuticals to industry peers
Speak with a workforce expert about Apellis Pharmaceuticals.
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