What departments does Preston Companies have?

Preston Companies has employees across 9 departments including Operations, Program & Project Management, Human Resources, Administrative, Engineering.

What is the largest department at Preston Companies?

The largest department at Preston Companies is Program & Project Management with 5 employees.

Where are Preston Companies employees located globally?

Preston Companies has employees across 5 continents and 7 countries including Nigeria, Malaysia, Philippines, United Kingdom Of Great Britain And Northern Ireland, Romania.

How has Preston Companies's team size changed over time?

Preston Companies's team has decreased from approximately 100 to 95 employees based on available data.

Preston Companies Employee Directory

ConstructionCalifornia, United States201-500 Employees

The Preston Companies is a mid-size construction firm based in Milpitas, California, that focuses on utilities installation and earthwork services. Its work encompasses excavating and installing underground wet and dry utilities, along with soils testing and management and fill site oversight. The company emphasizes building relationships with clients through consistent service, integrity, and quality, supported by a professional staff that aims to understand and address project needs. It operates through three brands—Preston Pipelines, Preston Electric, and DirtMarket—covering pipelines, electrical work, and related earthmoving activities. 

In the California construction sector, Preston Companies positions itself as a provider of integrated underground utilities and site-management solutions for complex projects. Safety is prioritized across its processes, with ongoing training to minimize incidents and uphold a culture of safety.

Preston Companies Global Highlights

North America
170

United States Of America
170

Europe
6

United Kingdom Of Great Britain And Northern Ireland
5
Romania
1

Asia
2

Malaysia
1
Philippines
1

South America
2

Brazil
2

Africa
1

Nigeria
1

Preston Companies's Leadership

P. G.
Vice President
Mobile Phone
Email
J. S.
Director Of Operations Technology
Mobile Phone
Email
G. C.
Operations Manager
Mobile Phone
Email
J. C.
Project Manager
Mobile Phone
Email
J. C.
Payroll Manager
Mobile Phone
Email
J. H.
Project Manager
Mobile Phone
Email
S. A.
Project Manager
Mobile Phone
Email
D. L.
Senior Equipment Administrator
Mobile Phone
Email

Preston Companies Employee Metrics

100%

50%

0%

2026

2025

Program & Project Management
Civil Engineering & Construction
Administrative
Accounting
Community & Social Services
Other
Business
Arts & Design

Contact profiles from Preston Companies

Name

Title

Contact

Location

Last Update

G. M.
Mobile Phone
Email
Oct 17, 2024
G. R.
Mobile Phone
Email
Apr 07, 2023
J. B.
Mobile Phone
Email
Sep 05, 2026
M. B.
Mobile Phone
Email
Oct 16, 2024
M. C.
Mobile Phone
Email
Apr 08, 2023
R. P.
Mobile Phone
Email
May 12, 2025
T. C.
Mobile Phone
Email
Oct 21, 2024

Frequently Asked Questions

What is Preston Companies known for?

Preston Companies operates in the Construction industry. You can contact Preston Companies's main corporate office by phone at

+1-408-262-****

. Explore Preston Companies's company overview page for more information.

What is Preston Companies's most common email format?

Preston Companies employees' email format typically follows the pattern of FLast@prestonpipelines.com. Trying to find reliable and up-to-date employee contact data? Find more Preston Companies email formats with LeadIQ.

How many employees does Preston Companies have currently?

Preston Companies has approximately 239 employees as of August 2026. These team members are located across 5 continents, including North America, Europe and Asia.

Who are Preston Companies's key employees and leadership?

As of August 2026, Preston Companies's key employees include:

Vice President: P. G.
Director Of Operations Technology: J. S.
Operations Manager: G. C.
Project Manager: J. C.
Payroll Manager: J. C.

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Preston Companies Employee Directory

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