Jaca & Sierra Engineering, PSC Employee Directory

Q: What is Jaca & Sierra Engineering, PSC known for?

Jaca & Sierra Engineering, PSC was founded in 1967. Jaca & Sierra Engineering, PSC operates in the Civil Engineering industry.

Civil EngineeringArkansas, United States51-200 Employees

Company established in 1967 dedicated to geotechnical investigations, consulting, environmental drilling and construction material testing services in Puerto Rico, US Virgin Islands, British Virgin Islands, Barbados, West Indies and other Lesser Antilles. 

Jaca & Sierra Testing Laboratories Inc. is accredited by AASHTO Accreditation Program (AAP) and validated by the US Army Corps of Engineers for certain standards of concrete, aggregate and soil testing.

Find Jaca & Sierra Engineering, PSC employees' phone numbers or email addresses

Jaca & Sierra Engineering, PSC Global Highlights

North America
18

United States Of America
18

Asia
2

India
2

Jaca & Sierra Engineering, PSC's Leadership

L. S.
President
Mobile Phone
Email
R. C.
Partner, Geotechnical Engineer
Mobile Phone
Email
M. E. C.
Geotechnical Engineer
Mobile Phone
Email
W. S.
Professional Engineer
Mobile Phone
Email
J. G.
Officer
Mobile Phone
Email
K. R.
Bilingual Customer Service Representative
Mobile Phone
Email
M. P.
Civil Engineer
Mobile Phone
Email
M. E. P.
Geotechnical Engineer-Level I
Mobile Phone
Email

Contact profiles from Jaca & Sierra Engineering, PSC

Name

Title

Contact Info

Location

Last Update

R. C.
Partner, Geotechnical Engineer
Mobile Phone
Email
Puerto Rico
Oct 23, 2025
L. S.
President
Mobile Phone
Email
Puerto Rico
Jun 18, 2024
M. E. C.
Geotechnical Engineer
Mobile Phone
Email
Puerto Rico
Nov 19, 2025
W. S.
Professional Engineer
Mobile Phone
Email
United StatesOklahoma
Oct 21, 2025
J. G.
Officer
Mobile Phone
Email
UNITED STATES
Oct 18, 2024
K. R.
Bilingual Customer Service Representative
Mobile Phone
Email
Puerto RicoCarolina
Sep 12, 2024
M. P.
Civil Engineer
Mobile Phone
Email
Jun 12, 2025
M. E. P.
Geotechnical Engineer-Level I
Mobile Phone
Email
Puerto RicoSan Juan
Jun 13, 2025

Frequently Asked Questions

What is Jaca & Sierra Engineering, PSC known for?

Jaca & Sierra Engineering, PSC was founded in 1967 operates in the Civil Engineering industry; you can contact the main corporate office by phone at

+1-787-761-****

. Explore Jaca & Sierra Engineering, PSC's company overview page for more information.

What is Jaca & Sierra Engineering, PSC's most common email format?

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

How many employees does Jaca & Sierra Engineering, PSC have currently?

Jaca & Sierra Engineering, PSC has approximately 51 employees as of December 2025. These team members are located across 2 continents, including North AmericaAsia.

Who are Jaca & Sierra Engineering, PSC's key employees and leadership?

As of December 2025, Jaca & Sierra Engineering, PSC's key employees include:

President: L. S.
Partner, Geotechnical Engineer: R. C.
Geotechnical Engineer: M. E. C.
Professional Engineer: W. S.
Officer: J. G.

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