Company Insights/Semiconductor Manufacturing/Lumentum

Lumentum Headcount Insights and Observed Profile Trends

Lumentum has 2,354 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
2,354
As of July 2026 · +0.6% since August 2025
New hires
157
Last 12 months
Founded
2015
Departments
31
29% in Engineering
Countries represented
25
8.2% of profiles in San Jose, California, USA
Summary
  • Observed professional profiles increased by 0.6% from 2,340 in August 2025 to 2,354 in July 2026.
  • Engineering is the largest classified department, with 579 of 1,972 profiles (29.4%).
  • San Jose, California, USA is the most common reported profile location, representing 8.2% of the 1,972 profiles in the geography snapshot.
  • 157 observed hire events appear in the latest 12-month event window.

Lumentum 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

2,3542,3162,278Aug 25Jan 26Jul 26Jul 262,354

Observed professional profiles increased by 0.6% across the available monthly window, from 2,340 to 2,354 profiles.

Observed profiles by department

Current professional profiles rank classified departments by observed count.

Population: 1,972 profiles with a department classification from 1,972 current observed profiles. This population is separate from the monthly headcount series.

What the data says

Engineering is the largest observed department at Lumentum, with 579 professional profiles.

Team composition

Engineering
29%
579
Manufacturing
15%
287
Information Technology
12%
231
Other
11%
220
Quality Assurance
5%
95
Project Management
4%
74
Human Resources
3%
69
Research
3%
69
Management
3%
59
Sales
3%
58
Finance
2%
35
Accounting
1%
26
Supply Chain
1%
23
Production
1%
21
Purchasing
1%
21
Business Development
<1%
17
Administrative
<1%
16
Product Management
<1%
16
Marketing
<1%
14
Education
<1%
9
Customer Service
<1%
5
Legal
<1%
5
Training
<1%
5
Consulting
<1%
4
Health Care Provider
<1%
4
Analyst
<1%
3
Design
<1%
2
QualityAssurance
<1%
2
Public Relations
<1%
1
Science
<1%
1
Strategy / Planning
<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

San Jose, California, USA is the most common observed profile location for Lumentum in this dataset.

Geographic distribution

San Jose, California, USA
8.2%
Ottawa, Ontario, CAN
7.7%
Bangkok, Bkk, THA
7.4%
Shenzhen, Guangdong, CHN
7.3%
California, USA
4.5%

City or region available for 1,726 of 1,972 profiles (87.5%). 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: 1,972 profiles with a vendor seniority classification from 1,972 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

Entry level28.4%
561
Manager22.4%
441
Senior17.5%
345
Mid-Senior level15.9%
314
Unclassified5.8%
115
Director4.2%
83
Vice President (VP)2.1%
42
Associate1.8%
35
Internship1.1%
21
Chief X Officer (CxO)<1%
15

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

Process Engineer
16.1%
Senior Process Engineer
11.8%
Staff Engineer
10.9%
Engineer
9.5%
Principal Engineer
9.5%
Test Engineer
9.5%
Process Technician
9.0%
Product Engineer
9.0%
Senior Engineer
7.6%
Engineering Project Manager
7.1%

Frequently asked questions

How many professional profiles are observed for Lumentum?

Lumentum has 2,354 observed employee profiles in the July 2026 headcount snapshot. This coverage measure may differ from the company's total workforce.

How has Lumentum's observed professional profile count changed?

Lumentum's observed professional profile count increased by 0.6% from August 2025 to July 2026, using the same monthly series shown above.

What is the largest department at Lumentum?

Engineering is the largest observed department at Lumentum, with 579 professional profiles.

How is Lumentum 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