Illumina has 10,355 observed employee profiles in the July 2026 headcount snapshot. This is a profile coverage measure, not a company-reported workforce total.
The overview and this chart use the same monthly profile series. These observed counts may differ from the company’s total workforce.
Observed professional profile trend
Observed professional profiles increased by 3.0% across the available monthly window, from 10,056 to 10,355 profiles.
Current professional profiles rank classified departments by observed count.
Population: 8,181 profiles with a department classification from 8,181 current observed profiles. This population is separate from the monthly headcount series.
Information Technology is the largest observed department at Illumina, with 1,489 professional profiles.
Team composition
Locations reported on individual profiles show where observed profiles are based. These are profile locations, not a count of company offices.
San Diego, California, USA is the most common observed profile location for Illumina in this dataset.
Geographic distribution
City or region available for 6,909 of 8,181 profiles (84.5%). Percentages use all observed profiles, including those without a known location. Profile data through 2026-08-25.
The profile distribution shows the balance between leadership, management, and individual contributors.
Population: 8,181 profiles with a vendor seniority classification from 8,181 current observed profiles. This population is separate from the monthly headcount series. Ambiguous Owner, Partner, Executive, and unavailable labels are grouped as Unclassified.
Vendor-classified seniority mix
The most frequent titles in the available profile population show the roles with the greatest visible density.
Counts come from the current observed profile snapshot and are separate from the monthly headcount series.
Role concentration
Illumina has 10,355 observed employee profiles in the July 2026 headcount snapshot. This coverage measure may differ from the company's total workforce.
Illumina's observed professional profile count increased by 3.0% from August 2025 to July 2026, using the same monthly series shown above.
Information Technology is the largest observed department at Illumina, with 1,489 professional profiles.
Observed profile trends use the latest available monthly professional profile snapshot. Company-reported workforce totals appear separately and only when supported by a primary company source or regulatory filing. Geography uses location information from individual profiles, aggregated separately from verified company headquarters. Data may lag internal company changes.
The observed profile metric and trend chart use the same latest available monthly snapshot, with its observation month shown separately from the page update date. Company-reported workforce totals appear only when supported by a primary source and remain separate from profile counts. Geographic distributions use a separate current profile population and person location fields, never company headquarters. Country counts describe countries represented in those profiles, not offices. Location percentages include profiles without a known city or region in their denominator. Department, seniority, and title coverage may differ from the company workforce.
