Company Insights/Computer and Network Security/Illumio

Illumio Headcount Insights and Observed Profile Trends

Illumio has 865 observed employee profiles in the July 2026 headcount snapshot. This is a profile coverage measure, not a company-reported workforce total.

Updated September 10, 2026
Observed profiles
865
As of July 2026 · +3.8% since August 2025
New hires
133
Last 12 months
Founded
2013
Departments
25
28% in Information Technology
Countries represented
28
16.7% of profiles in California, USA
Summary
  • Observed professional profiles increased by 3.8% from 833 in August 2025 to 865 in July 2026.
  • Information Technology is the largest classified department, with 195 of 689 profiles (28.3%).
  • California, USA is the most common reported profile location, representing 16.7% of the 689 profiles in the geography snapshot.
  • 133 observed hire events appear in the latest 12-month event window.

Illumio observed profiles over time

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

865840815Aug 25Jan 26Jul 26Jul 26865

Observed professional profiles increased by 3.8% across the available monthly window, from 833 to 865 profiles.

Observed profiles by department

Current professional profiles rank classified departments by observed count.

Population: 689 profiles with a department classification from 689 current observed profiles. This population is separate from the monthly headcount series.

What the data says

Information Technology is the largest observed department at Illumio, with 195 professional profiles.

Team composition

Information Technology
28%
195
Sales
24%
164
Engineering
11%
78
Other
7%
45
Marketing
6%
39
Business Development
4%
31
Human Resources
3%
24
Management
3%
23
Customer Service
1%
10
Manufacturing
1%
10
Product Management
1%
10
Administrative
1%
9
Design
1%
8
Project Management
1%
8
Finance
1%
7
Accounting
<1%
6
Consulting
<1%
5
Quality Assurance
<1%
4
Legal
<1%
3
Writing / Editing
<1%
3
Art / Creative
<1%
2
Purchasing
<1%
2
Analyst
<1%
1
Education
<1%
1
Public Relations
<1%
1

Profiles by location

Locations reported on individual profiles show where observed profiles are based. These are profile locations, not a count of company offices.

What the data says

California, USA is the most common observed profile location for Illumio in this dataset.

Geographic distribution

California, USA
16.7%
San Jose, California, USA
7.1%
Sunnyvale, California, USA
6.1%
New York metropolitan area, Pennsylvania, USA
1.6%
San Francisco, California, USA
1.6%

City or region available for 610 of 689 profiles (88.5%). Percentages use all observed profiles, including those without a known location. Profile data through 2026-08-25.

Profiles by seniority

The profile distribution shows the balance between leadership, management, and individual contributors.

Population: 689 profiles with a vendor seniority classification from 689 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

Senior26.0%
179
Mid-Senior level17.1%
118
Manager16.4%
113
Unclassified11.0%
76
Director10.7%
74
Entry level8.6%
59
Vice President (VP)4.8%
33
Associate2.9%
20
Chief X Officer (CxO)1.3%
9
Internship1.2%
8

Most common job titles

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

Regional Sales Director
28.9%
Staff Engineer
12.6%
Professional Services Consultant
11.9%
Senior Member of Technical Staff
10.4%
Senior Sales Engineer
8.1%
Senior Professional Services Consultant
6.7%
Staff Software Engineer
5.9%
Member of Technical Staff
5.2%
Principal Professional Services Consultant
5.2%
Senior Software Engineer
5.2%

Frequently asked questions

How many professional profiles are observed for Illumio?

Illumio has 865 observed employee profiles in the July 2026 headcount snapshot. This coverage measure may differ from the company's total workforce.

How has Illumio's observed professional profile count changed?

Illumio's observed professional profile count increased by 3.8% from August 2025 to July 2026, using the same monthly series shown above.

What is the largest department at Illumio?

Information Technology is the largest observed department at Illumio, with 195 professional profiles.

How is Illumio workforce data collected?

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.

Methodology

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.

Last verified: September 10, 2026