What departments does Personalis, Inc. have?

Personalis, Inc. has employees across 10 departments including Entrepreneurship, Business Development, Accounting, Information Technology, Business.

What is the largest department at Personalis, Inc.?

The largest department at Personalis, Inc. is Research with 10 employees.

Where are Personalis, Inc. employees located globally?

Personalis, Inc. has employees across 5 continents and 17 countries including Nigeria, Ghana, China, Iran, Russian Federation.

How has Personalis, Inc.'s team size changed over time?

Personalis, Inc.'s team has decreased from approximately 413 to 278 employees based on available data.

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Personalis, Inc. Employee Directory

Biotechnology ResearchCalifornia, United States201-500 Employees

Personalis, Inc. is a mid-sized biotechnology research company based in Fremont, California. It develops personalized cancer testing intended to guide care from biopsy through the patient\'s life, using tumor-and-normal profiling and advanced data interpretation. The company\'s assays are designed to detect minimal residual disease and cancer recurrence at the earliest timepoints and to inform decisions about targeted therapies based on comprehensive genomic profiling. 

Personalis serves healthcare providers, researchers, and pharmaceutical developers seeking to improve treatment selection and disease monitoring. Operating in the biotechnology research sector, it participates in industry events to share clinical findings and expand its collaborative footprint. A recent collaboration with the Yale Cancer Center is focused on evaluating a ctDNA-guided treatment approach in breast cancer.

Personalis, Inc. Global Highlights

North America
375

United States Of America
372
Mexico
2
Costa Rica
1

Asia
19

India
6
China
4
Iran
3
Bangladesh
2
Russian Federation
1
Nepal
1
Sri Lanka
1
Indonesia
1

Europe
4

United Kingdom Of Great Britain And Northern Ireland
3
Portugal
1

Africa
3

Nigeria
2
Ghana
1

South America
2

Colombia
1
Brazil
1

Personalis, Inc.'s Leadership

C. H.
Chief Executive Officer
Mobile Phone
Email
J. W.
Chief Executive Officer
Mobile Phone
Email
R. S.
Vice President , Corporate Controller
Mobile Phone
Email
D. J.
Owner
Mobile Phone
Email
T. H.
Owner
Mobile Phone
Email
M. T.
Director, Biopharma Business Development
Mobile Phone
Email
C. T.
Associated Director, Accounting
Mobile Phone
Email
A. C.
Director, Biopharma Business Development - Europe
Mobile Phone
Email

Personalis, Inc. Employee Metrics

100%

50%

2026

2025

Research
Engineering
Program & Project Management
Business Development
Operations
Other
Biotechnology
Accounting
Administrative

Contact profiles from Personalis, Inc.

Name

Title

Contact

Location

Last Update

C. H.
Chief Executive Officer
Mobile Phone
Email
Aug 16, 2026
D. J.
Owner
Mobile Phone
Email
Oct 16, 2024
J. W.
Chief Executive Officer
Mobile Phone
Email
UNITED KINGDOMGreater London
Jan 04, 2024
T. H.
Owner
Mobile Phone
Email
Oct 17, 2024
R. S.
Vice President , Corporate Controller
Mobile Phone
Email
Oct 16, 2025
M. T.
Director, Biopharma Business Development
Mobile Phone
Email
United KingdomEngland
Jun 19, 2026
C. T.
Associated Director, Accounting
Mobile Phone
Email
Bay
Aug 23, 2026
A. C.
Director, Biopharma Business Development - Europe
Mobile Phone
Email
Portugal
Jul 29, 2026
D. Z.
Director - Scientific Computing & It
Mobile Phone
Email
Bay
Aug 27, 2026
M. A.
Associate Director, Business Systems
Mobile Phone
Email
Bay
Aug 28, 2026

Frequently Asked Questions

What is Personalis, Inc. known for?

Personalis, Inc. was founded in 2011 operates in the Biotechnology Research industry; you can contact the main corporate office by phone at

+1-650-752-****

. Explore Personalis, Inc.'s company overview page for more information.

What is Personalis, Inc.'s most common email format?

Personalis, Inc. employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Personalis, Inc. email formats with LeadIQ.

How many employees does Personalis, Inc. have currently?

Personalis, Inc. has approximately 407 employees as of August 2026. These team members are located across 5 continents, including North AmericaAsiaEurope.

Who are Personalis, Inc.'s key employees and leadership?

As of August 2026, Personalis, Inc.'s key employees include:

Chief Executive Officer: C. H.
Chief Executive Officer: J. W.
Vice President , Corporate Controller: R. S.
Owner: D. J.
Owner: T. H.

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Personalis, Inc. Employee Directory

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