How many employees work at Sei Labs?

Sei Labs, Inc. has approximately 70 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Sei Labs’s total headcount has declined 13.6% from 80 employees in 2023 to 70 in 2026.

Data source: Revelio LabsCoverage: Global workforce, 2023–2026Published August 2026

Is Sei Labs hiring right now?

Yes, Sei Labs is actively hiring. Sei Labs had 19 active job postings in 2026, a 145.5% increase from 2025 — see job openings & hiring trends.

About Sei Labs’s Workforce

Sei Labs, Inc. is an Information Technology Services company that employs 70 people worldwide as of March 2026. It is the 9th-largest by headcount among its peers. Founded in 2021, the company is headquartered in Arlington, Virginia.

Sei Labs's workforce has declined 13.6% from 2023 to 2026, down 2.2% year over year in 2026. It fell to a low of 62 in 2025 Q1 before recovering. Its workforce is concentrated most in North America (55.3%), followed by Sub-Saharan Africa (11.1%) and Eastern Europe (11.1%).

Sei Labs's functional groups are Finance and Operations (48.2%), Engineering (34.0%), and Sales and Marketing (17.8%), with Engineering growing fastest (up 10.5%). The average salary is $100,103, ranging from a median of $137,000 in North America to $9,000 in Sub-Saharan Africa, up 14.8% year over year in 2026.

Sei Labs's active job postings rose 145.5% in 2026 to 19, with new postings per month climbing from 4 in 2023 to 6 in 2026.

Sourced from Revelio Labs workforce data.

Headquarters
Arlington, Virginia
Founded
2021
Industry
Information Technology Services
Employees
70
YoY
-2.2% (+8)

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Sei Labs Annual Employee Count (2023-2026)

Interactive chart of Sei Labs annual worldwide employee count from 2023 to 2026.
  • Sei Labs had 70 employees in 2026, a 2.2% decline (+8) from 2025.
  • Sei Labs had 68 employees in 2025, a 0.4% increase (+1) from 2024.
  • Sei Labs had 67 employees in 2024, a 6.3% decline (-7) from 2023.
  • Sei Labs had 74 employees in 2023, a 0.7% decline (+15) from 2022.

Sei Labs's total workforce has grown from 62 employees in 2025 to 70 in 2026. Sei Labs's headcount peaked at 80 in 2023 before declining in 2025 and recovering through 2026.

Sei Labs, Inc. quarterly employee count

YearQtrEmployeesYoY ChangeYoY %
2026Q170+8-2.2%
2025Q468+1+0.4%
2025Q372+8+2.1%
2025Q268+4+5.1%
2025Q162-10-0.4%
2024Q467-7-6.3%
2024Q364-15-14.7%
2024Q264-16-20.8%
2024Q172+4-12.1%
2023Q474+15-0.7%
2023Q379+33+19.6%
2023Q280+48+39.6%

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Sei Labs Employee Count by Region (2026)

North America accounts for the largest share of Sei Labs's global workforce with approximately 55% of total employees, followed by Sub-Saharan Africa and Eastern Europe.

Sei Labs employees by region

RegionEmployees% of Total
North America3655.3%
Sub-Saharan Africa711.1%
Eastern Europe711.1%
Southern Europe34.9%
East Asia34.3%
Western Europe34.3%
Southeast Asia23.7%
Northern Europe23.6%
Pacific Islands11.8%

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Sei Labs Employee Count by Department (2026)

Sei Labs's employee groups are Finance and Operations (48.2%), Engineering (34.0%), and Sales and Marketing (17.8%).

Sei Labs employees by department

DepartmentEmployees% of Total
Finance and Operations3448.2%
Engineering2434.0%
Sales and Marketing1217.8%

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Sei Labs Employee Salary by Region (2026)

Sei Labs's average employee salary is $100,103 globally. Employees in North America receive the highest compensation, with median pay approximately 1.4x the global average. Pay is lowest in Sub-Saharan Africa, at a median of $9,000.

Sei Labs median employee salary by region (USD)

RegionMedian Salary
North America$137,000
Eastern Europe$13,000
Sub-Saharan Africa$9,000

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Sei Labs Job Openings and Hiring Trends (2023-2026)

Interactive chart of Sei Labs annual active job postings from 2023 to 2026.
  • Sei Labs had 19 active job postings in 2026, a 145.5% increase (+8) from 2025.
  • Sei Labs had 11 active job postings in 2025, a 114.3% increase (+8) from 2024.
  • Sei Labs had 3 active job postings in 2024, a 80.0% decline (-4) from 2023.
  • Sei Labs had 7 active job postings in 2023, a 15.4% increase from 2022.
  • Hiring velocity in 2026: 6 new roles/month, up from 3 in 2025 and 4 in 2024.

Sei Labs's hiring is accelerating: active job postings rose 145.5% in 2026 to 19, with new postings per month climbing from 4 in 2023 to 6 in 2026.

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Frequently Asked Questions About Sei Labs

How fast is Sei Labs growing?
In 2026, Sei Labs's headcount shrank 2.2% to 70 employees, up from 62 in 2025.
See the full headcount history
Where are Sei Labs employees located?
Most Sei Labs employees are based in North America (55.3% of headcount), followed by Sub-Saharan Africa and Eastern Europe.
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What is the average salary at Sei Labs?
The average employee salary at Sei Labs is approximately $100.1k per year.
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How many new job postings does Sei Labs open per year?
In Q1 2026, Sei Labs opened 17 new job postings. In 2025, Sei Labs opened 39 new job postings — about 3 per month.
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When was Sei Labs founded and where is it headquartered?
Sei Labs was founded in 2021 and is headquartered in Arlington, Virginia.
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