How many employees work at Illumina?

Illumina, Inc. has 9,925 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is -3.6%.

Data source: Revelio Labs Coverage: Global workforce Latest update: September 2025

About Illumina

At Illumina, our goal is to apply innovative technologies and revolutionary assays to the analysis of genetic variation and function, making studies possible that were not even imaginable just a few years ago. These studies will help make the realization of personalized medicine possible. With such rapid advances in technology taking place, it is mission critical to have solutions that are not only innovative, but flexible, scalable, and complete with industry-leading support and service. As a global company that places high value on collaborative interactions, rapid delivery of solutions, and prioritizing the needs of its customers, we strive to meet this challenge. Illumina’s innovative, array-based solutions for DNA, RNA, and protein analysis serve as tools for disease research, drug development, and the development of molecular tests in the clinic.

As of September 2025

Illumina
workforce metrics

Headcount

9.9k

Avg. Salary

$125.1k

Tenure

4.1yr

Growth Rate

-3.6%

Hiring Rate

Attrition Rate

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Employee Headcount

Interactive chart of Illumina annual worldwide employee count from 2023 to 2025.

  • Illumina total number of employees in 2025 was 9,891.042, a 3.6% decline from 2024.
  • Illumina total number of employees in 2024 was 10,103.839, a 5.2% decline from 2023.
  • Illumina total number of employees in 2023 was 10,494.96, a 11.0% decline from 2022.

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Employee Geographic Breakdown

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Employee Role Breakdown

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Employee Compensation

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Active Job Postings

Interactive chart of Illumina annual active job postings from 2023 to 2025.

  • Illumina active job postings in 2025 was 2,745, a 92.8% increase from 2024.
  • Illumina active job postings in 2024 was 1,183, a 31.8% increase from 2023.
  • Illumina active job postings in 2023 was 858, a 39.7% increase from 2022.

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Employee Sentiment

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