How many employees work at Stealth BioTherapeutics, Inc.?
Stealth BioTherapeutics, Inc. has approximately 88 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Stealth BioTherapeutics, Inc.’s total headcount has grown 34.3% from 66 employees in 2023 to 88 in 2026.
Is Stealth BioTherapeutics, Inc. hiring right now?
Yes, Stealth BioTherapeutics, Inc. is actively hiring. Stealth BioTherapeutics, Inc. had 8 active job postings in 2026, a 200.0% increase from 2025 — see job openings & hiring trends.
About Stealth BioTherapeutics, Inc.’s Workforce
Stealth BioTherapeutics, Inc. is a Pharmaceuticals company that employs 88 people worldwide as of March 2026. It is the 4th-largest by headcount among its peers. Founded in 2007, the company is headquartered in Needham, Massachusetts.
Stealth BioTherapeutics, Inc.'s workforce has grown 34.3% from 2023 to 2026, though it is down 3.1% year over year in 2026. It fell to a low of 62 in 2025 Q3 before recovering. Its workforce is concentrated most in North America (96.0%), followed by South Asia (4.0%).
Stealth BioTherapeutics, Inc.'s functional groups are Finance and Operations (47.6%), Sales and Marketing (35.5%), and Engineering (16.9%), with Finance and Operations growing fastest (up 25.0%). The average salary is $213,902, highest in North America at a median of $184,000.
Stealth BioTherapeutics, Inc.'s active job postings rose 200.0% in 2026 to 8. Overall employee sentiment is neutral and broadly stable.
Sourced from Revelio Labs workforce data.
- Headquarters
- Needham, Massachusetts
- Founded
- 2007
- Industry
- Pharmaceuticals
- Employees
- 88
- YoY
- -3.1% (+15)
As of March 2026
Stealth BioTherapeutics, Inc. workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Stealth BioTherapeutics, Inc.. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsStealth BioTherapeutics, Inc. Annual Employee Count (2023-2026)
- Stealth BioTherapeutics, Inc. had 88 employees in 2026, a 3.1% decline (+15) from 2025.
- Stealth BioTherapeutics, Inc. had 72 employees in 2025, a 7.2% decline (-3) from 2024.
- Stealth BioTherapeutics, Inc. had 75 employees in 2024, a 1.7% increase from 2023.
- Stealth BioTherapeutics, Inc. had 75 employees in 2023, a 4.9% increase (+14) from 2022.
Stealth BioTherapeutics, Inc.'s total workforce has grown from 66 employees in 2023 to 88 in 2026.
Stealth BioTherapeutics, Inc. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 88 | +15 | -3.1% |
| 2025 | Q4 | 72 | -3 | -7.2% |
| 2025 | Q3 | 62 | -15 | -10.9% |
| 2025 | Q2 | 63 | -15 | -9.2% |
| 2025 | Q1 | 73 | -4 | -0.1% |
| 2024 | Q4 | 75 | +0 | +1.7% |
| 2024 | Q3 | 77 | +6 | +3.2% |
| 2024 | Q2 | 78 | +12 | +6.3% |
| 2024 | Q1 | 77 | +14 | +6.7% |
| 2023 | Q4 | 75 | +14 | +4.9% |
| 2023 | Q3 | 71 | +7 | +4.9% |
| 2023 | Q2 | 66 | -2 | +1.5% |
See Stealth BioTherapeutics, Inc.'s complete headcount history, including quarterly breakdowns.
Get the DataStealth BioTherapeutics, Inc. Employee Count by Region (2026)
North America accounts for the largest share of Stealth BioTherapeutics, Inc.'s global workforce with approximately 96% of total employees, followed by South Asia.
Stealth BioTherapeutics, Inc. employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 77 | 96.0% |
| South Asia | 3 | 4.0% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataStealth BioTherapeutics, Inc. Employee Count by Department (2026)
Stealth BioTherapeutics, Inc.'s employee groups are Finance and Operations (47.6%), Sales and Marketing (35.5%), and Engineering (16.9%).
Stealth BioTherapeutics, Inc. employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 42 | 47.6% |
| Sales and Marketing | 31 | 35.5% |
| Engineering | 15 | 16.9% |
Compare Stealth BioTherapeutics, Inc.'s department mix to industry peers.
See Full DataStealth BioTherapeutics, Inc. Employee Salary by Region (2026)
Stealth BioTherapeutics, Inc.'s average employee salary is $213,902 globally. Employees in North America receive the highest compensation.
Stealth BioTherapeutics, Inc. median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| North America | $184,000 |
Unlock salary by role, level, and city — and compare to Stealth BioTherapeutics, Inc.'s industry peers.
Unlock Salary DataStealth BioTherapeutics, Inc. Job Openings and Hiring Trends (2023-2026)
- Stealth BioTherapeutics, Inc. had 8 active job postings in 2026, a 200.0% increase (+7) from 2025.
- Stealth BioTherapeutics, Inc. had 1 active job postings in 2025, a 200.0% increase (+1) from 2024.
- Stealth BioTherapeutics, Inc. had 0 active job postings in 2024, a 200.0% decline (-3) from 2023.
- Stealth BioTherapeutics, Inc. had 3 active job postings in 2023, a 200.0% increase from 2022.
- Hiring velocity in 2026: 3 new roles/month, up from 0 in 2025 and 0 in 2024.
Stealth BioTherapeutics, Inc.'s active job postings rose 200.0% in 2026 to 8.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataStealth BioTherapeutics, Inc. Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across Stealth BioTherapeutics, Inc.'s workforce based on public professional data. Overall sentiment is neutral and has held steady 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 Stealth BioTherapeutics, Inc.
- How fast is Stealth BioTherapeutics, Inc. growing?
- In 2026, Stealth BioTherapeutics, Inc.'s headcount shrank 3.1% to 88 employees, up from 73 in 2025.
- See the full headcount history
- Where are Stealth BioTherapeutics, Inc. employees located?
- Most Stealth BioTherapeutics, Inc. employees are based in North America (96.0% of headcount), followed by South Asia.
- Explore where the workforce is based
- What is the average salary at Stealth BioTherapeutics, Inc.?
- The average employee salary at Stealth BioTherapeutics, Inc. is approximately $213.9k per year.
- Analyze the salary distribution
- How many new job postings does Stealth BioTherapeutics, Inc. open per year?
- In Q1 2026, Stealth BioTherapeutics, Inc. opened 10 new job postings. In 2025, Stealth BioTherapeutics, Inc. opened 5 new job postings — about 0 per month.
- Track hiring trends by role
- When was Stealth BioTherapeutics, Inc. founded and where is it headquartered?
- Stealth BioTherapeutics, Inc. was founded in 2007 and is headquartered in Needham, Massachusetts.
- Compare Stealth BioTherapeutics, Inc. to industry peers
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