How many employees work at BillionToOne?
BillionToOne, Inc. (BLLN) has approximately 751 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. BillionToOne's total headcount has grown 80.9% from 415 employees in 2023 to 751 in 2026.
Data source: Revelio LabsCoverage: Global workforce, 2023–2026Published July 2026
Is BillionToOne hiring right now?
Yes, BillionToOne is actively hiring. BillionToOne had 173 active job postings in 2026, a 36.2% increase from 2025 — see job openings & hiring trends.
About BillionToOne's Workforce
BillionToOne, Inc. (BLLN) is a Biotech and Healthcare Services company that employs 751 people worldwide as of March 2026. It is the 8th-largest by headcount among its peers. Founded in 2016, the company is headquartered in Menlo Park, California and trades on the NASDAQ.
BillionToOne's workforce has grown 80.9% from 2023 to 2026, and it is up 3.6% year over year in 2026. The bulk of employees are based in the United States (95.4%), with Pakistan (0.9%) and Myanmar (0.7%) also represented, and Canada is its fastest-growing location.
BillionToOne's largest groups are Finance and Operations (37.9%), Engineering (33.5%), and Sales and Marketing (28.5%), with Engineering growing the fastest at 11.6%. The average tenure is 1.7 years, and the all-employee median salary is $135,803, with regional medians of $131,000 in Northern America and $6,000 in Southern Asia.
BillionToOne's hiring activity shows active postings rising 36.2% in 2026 to 173, with postings per month increasing from 29 in 2023 to 57 in 2026. Employee sentiment is neutral but improving.
Sourced from Revelio Labs workforce data.
As of March 2026
BillionToOne
workforce metrics
Headcount
751
3.6% YoY
Avg. Salary
$135.8k
0.6% YoY
Tenure
1.7yr
0.6yr YoY
Growth Rate
3.6%
1.6pts YoY
Hiring Rate
Attrition Rate
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for BillionToOne. Compare to peers, export the dataset, and access the full quarterly history.
- BillionToOne had 751 employees in 2026, a 3.6% increase (+163) from 2025.
- BillionToOne had 716 employees in 2025, a 4.3% increase (+159) from 2024.
- BillionToOne had 557 employees in 2024, a 3.5% increase (+105) from 2023.
- BillionToOne had 452 employees in 2023, a 6.8% increase (+94) from 2022.
BillionToOne's total workforce has grown from 415 employees in 2023 to 751 in 2026.
BillionToOne, Inc. — quarterly employee count (2023–2026)
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 751 | +163 | +3.6% |
| 2025 | Q4 | 716 | +159 | +4.3% |
| 2025 | Q3 | 699 | +177 | +5.7% |
| 2025 | Q2 | 653 | +149 | +4.8% |
| 2025 | Q1 | 588 | +123 | +5.2% |
| 2024 | Q4 | 557 | +105 | +3.5% |
| 2024 | Q3 | 522 | +90 | +2.6% |
| 2024 | Q2 | 504 | +89 | +4.3% |
| 2024 | Q1 | 465 | +86 | +4.8% |
| 2023 | Q4 | 452 | +94 | +6.8% |
| 2023 | Q3 | 432 | +100 | +7.2% |
| 2023 | Q2 | 415 | +109 | +6.7% |
Want to see BillionToOne's complete headcount history back to 2008, including quarterly breakdowns?
The United States accounts for the largest share of BillionToOne's global workforce with approximately 95% of total employees, followed by Pakistan and Myanmar. BillionToOne's headcount in Canada is growing fastest among its major locations, up 18.2% year over year in 2026.
BillionToOne employees by country — 2026
| Country | Employees | % of Total | YoY % |
|---|---|---|---|
| United States | 682 | 95.4% | +8.4% |
| Pakistan | 6 | 0.9% | +0.0% |
| Myanmar | 5 | 0.7% | +0.0% |
| Canada | 4 | 0.6% | +18.2% |
| Philippines | 4 | 0.6% | -22.7% |
| India | 3 | 0.4% | +0.0% |
| Bangladesh | 2 | 0.3% | +0.0% |
| Kenya | 2 | 0.3% | +0.0% |
| Germany | 2 | 0.2% | +0.0% |
| Brazil | 1 | 0.2% | +0.0% |
Drill into city-level data, hiring trends by region and historic geographic shifts
BillionToOne's largest employee groups are Finance and Operations (37.9%), Engineering (33.5%), and Sales and Marketing (28.5%).
BillionToOne employees by department — 2026
| Department | Employees | % of Total | YoY % |
|---|---|---|---|
| Finance and Operations | 284 | 37.9% | +5.5% |
| Engineering | 251 | 33.5% | +11.6% |
| Sales and Marketing | 214 | 28.5% | +11.2% |
Compare BillionToOne's department mix to industry peers.
BillionToOne's average employee salary is $135,803 globally. Employees in Northern America receive the highest compensation. Pay is lowest in Southern Asia, at a median of $6,000.
BillionToOne median employee salary by region — 2026 (USD)
| Region | Median Salary |
|---|---|
| Northern America | $131,000 |
| South-Eastern Asia | $8,000 |
| Southern Asia | $6,000 |
Unlock salary by role, level, and city — and compare to BillionToOne's industry peers.
- BillionToOne had 173 active job postings in 2026, a 36.2% increase (+56) from 2025.
- BillionToOne had 117 active job postings in 2025, a 38.8% increase (+38) from 2024.
- BillionToOne had 79 active job postings in 2024, a 37.6% increase (+25) from 2023.
- BillionToOne had 54 active job postings in 2023, a 15.4% decline from 2022.
- Hiring velocity in 2026: 57 new roles/month, up from 48 in 2025 and 40 in 2024. New metric
BillionToOne's hiring is accelerating: active job postings rose 36.2% in 2026 to 173, with new postings per month climbing from 29 in 2023 to 57 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Revelio Labs tracks employee sentiment across BillionToOne'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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- How fast is BillionToOne growing?
- In 2026, BillionToOne's headcount grew 3.6% to 751 employees, up from 588 in 2025.
- Where are BillionToOne employees located?
- Most BillionToOne employees are based in the United States (95.4% of headcount), followed by Pakistan and Myanmar.
- What is the average salary at BillionToOne?
- The average employee salary at BillionToOne is approximately $135.8k per year.
- How many people does BillionToOne hire per year?
- In 2026, BillionToOne opened roughly 684 new roles — about 57 per month.
- When was BillionToOne founded and where is it headquartered?
- BillionToOne was founded in 2016 and is headquartered in Menlo Park, California.
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