How many employees work at 2seventy Bio?
2seventy Bio, Inc. has approximately 49 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. 2seventy Bio’s total headcount has declined 86.8% from 368 employees in 2023 to 49 in 2026.
Is 2seventy Bio hiring right now?
No, 2seventy Bio is not actively hiring. 2seventy Bio had 0 active job postings in 2026, a 0.0% no change from 2025 — see job openings & hiring trends.
About 2seventy Bio’s Workforce
2seventy Bio, Inc. is a Pharmaceuticals company that employs 49 people worldwide as of March 2026. It is the 8th-largest by headcount among its peers. Founded in 2021, the company is headquartered in Cambridge, Massachusetts.
2seventy Bio's workforce has declined 86.8% from 2023 to 2026, down 33.2% year over year in 2026. It fell to a low of 49 in 2026 Q1 before recovering. Its workforce is concentrated most in North America (100.0%).
2seventy Bio's functional groups are Finance and Operations (50.6%), Engineering (34.8%), and Sales and Marketing (14.6%). The average salary is $149,993, highest in North America at a median of $125,000, down 8.9% year over year in 2026.
2seventy Bio's hiring activity held steady in 2026. Overall employee sentiment is neutral but declining.
Sourced from Revelio Labs workforce data.
- Headquarters
- Cambridge, Massachusetts
- Founded
- 2021
- Industry
- Pharmaceuticals
- Employees
- 49
- YoY
- -33.2% (-33)
As of March 2026
2seventy Bio workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for 2seventy Bio. Compare to peers, export the dataset, and access the full quarterly history.
Unlock Metrics2seventy Bio Annual Employee Count (2023-2026)
- 2seventy Bio had 49 employees in 2026, a 33.2% decline (-33) from 2025.
- 2seventy Bio had 50 employees in 2025, a 29.9% decline (-37) from 2024.
- 2seventy Bio had 87 employees in 2024, a 9.2% decline (-161) from 2023.
- 2seventy Bio had 248 employees in 2023, a 25.9% decline (-119) from 2022.
2seventy Bio's total workforce has declined from 368 employees in 2023 to 49 in 2026.
2seventy Bio, Inc. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 49 | -33 | -33.2% |
| 2025 | Q4 | 50 | -37 | -29.9% |
| 2025 | Q3 | 55 | -37 | -24.4% |
| 2025 | Q2 | 73 | -27 | -8.5% |
| 2025 | Q1 | 82 | -35 | -5.2% |
| 2024 | Q4 | 87 | -161 | -9.2% |
| 2024 | Q3 | 92 | -229 | -24.7% |
| 2024 | Q2 | 100 | -268 | -36.4% |
| 2024 | Q1 | 117 | -255 | -36.6% |
| 2023 | Q4 | 248 | -119 | -25.9% |
| 2023 | Q3 | 321 | -37 | -11.7% |
| 2023 | Q2 | 368 | +5 | -0.6% |
See 2seventy Bio's complete headcount history, including quarterly breakdowns.
Get the Data2seventy Bio Employee Count by Region (2026)
North America accounts for the largest share of 2seventy Bio's global workforce with approximately 100% of total employees.
2seventy Bio employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 49 | 100.0% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic Data2seventy Bio Employee Count by Department (2026)
2seventy Bio's employee groups are Finance and Operations (50.6%), Engineering (34.8%), and Sales and Marketing (14.6%).
2seventy Bio employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 25 | 50.6% |
| Engineering | 17 | 34.8% |
| Sales and Marketing | 7 | 14.6% |
Compare 2seventy Bio's department mix to industry peers.
See Full Data2seventy Bio Employee Salary by Region (2026)
2seventy Bio's average employee salary is $149,993 globally. Employees in North America receive the highest compensation.
2seventy Bio median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| North America | $125,000 |
Unlock salary by role, level, and city — and compare to 2seventy Bio's industry peers.
Unlock Salary Data2seventy Bio Job Openings and Hiring Trends (2023-2026)
- 2seventy Bio had 0 active job postings in 2026, a 0% no change from 2025.
- 2seventy Bio had 0 active job postings in 2025, a 200.0% decline (-1) from 2024.
- 2seventy Bio had 1 active job postings in 2024, a 120.0% decline (-3) from 2023.
- 2seventy Bio had 4 active job postings in 2023, a 160.0% decline from 2022.
- Hiring velocity in 2026: 0 new roles/month, up from 0 in 2025 and 0 in 2024.
2seventy Bio's hiring activity held steady in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring Data2seventy Bio Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across 2seventy Bio's workforce based on public professional data. Overall sentiment is neutral and has declined year over year in 2026.
Overall
Unlock the full sentiment breakdown by department, tenure, and trend over time.
Unlock SentimentSimilar Companies
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Frequently Asked Questions About 2seventy Bio
- How fast is 2seventy Bio growing?
- In 2026, 2seventy Bio's headcount shrank 33.2% to 49 employees, down from 82 in 2025.
- See the full headcount history
- Where are 2seventy Bio employees located?
- Most 2seventy Bio employees are based in North America (100.0% of headcount).
- Explore where the workforce is based
- What is the average salary at 2seventy Bio?
- The average employee salary at 2seventy Bio is approximately $150k per year.
- Analyze the salary distribution
- How many new job postings does 2seventy Bio open per year?
- In Q1 2026, 2seventy Bio opened 0 new job postings. In 2025, 2seventy Bio opened 0 new job postings — about 0 per month.
- Track hiring trends by role
- When was 2seventy Bio founded and where is it headquartered?
- 2seventy Bio was founded in 2021 and is headquartered in Cambridge, Massachusetts.
- Compare 2seventy Bio to industry peers
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