What departments does GSI Environmental Inc. have?

GSI Environmental Inc. has employees across 10 departments including Analytics, Marketing, Environmental Services, Education, Consultant.

What is the largest department at GSI Environmental Inc.?

The largest department at GSI Environmental Inc. is Environmental Services with 12 employees.

Where are GSI Environmental Inc. employees located globally?

GSI Environmental Inc. has employees across 3 continents and 3 countries including India, Germany, United States Of America.

How has GSI Environmental Inc.'s team size changed over time?

GSI Environmental Inc.'s team has decreased from approximately 228 to 196 employees based on available data.

GSI Environmental Inc. Employee Directory

Environmental ServicesTexas, United States201-500 Employees

GSI Environmental Inc. is an environmental engineering and science consulting firm that helps measure, analyze, and resolve complex environmental challenges for projects worldwide. Its work encompasses practical approaches to environmentally responsible industrial operations and property development, along with toxicological analysis and chemical hazard management, sustainable development of water and other natural resources, and the protection of rivers and estuaries. The firm combines hands-on experience with current research to provide timely, targeted answers to environmental questions.

Headquartered in Houston, Texas, the company operates as a mid-sized services firm with a global reach. A notable recent development is the June 2025 launch of a Fish Consumption Advisory Calculator designed to support regulators, consumers, and risk assessors navigating PFOS advisories across states.

GSI Environmental Inc. Global Highlights

North America
316

United States Of America
316

Asia
1

India
1

Europe
1

Germany
1

GSI Environmental Inc.'s Leadership

S. R.
Owner
Mobile Phone
Email
R. S.
Vice President
Mobile Phone
Email
A. D.
Vice President, Principal Hydrogeologist
Mobile Phone
Email
R. K.
Vice-President
Mobile Phone
Email
M. J.
Director And State Geologist
Mobile Phone
Email
L. W.
Data Manager
Mobile Phone
Email
K. J.
Brand Marketing Manager
Mobile Phone
Email
B. L.
Senior Environmental Engineer
Mobile Phone
Email

GSI Environmental Inc. Employee Metrics

100%

50%

0%

2026

2025

Biotechnology
Accounting
Consultant
Community & Social Services
Research
Other

Contact profiles from GSI Environmental Inc.

Name

Title

Contact

Location

Last Update

S. R.
Owner
Mobile Phone
Email
Oct 21, 2024
R. S.
Vice President
Mobile Phone
Email
Sep 27, 2026
A. D.
Vice President, Principal Hydrogeologist
Mobile Phone
Email
Jul 08, 2024
R. K.
Vice-President
Mobile Phone
Email
Oct 22, 2024
M. J.
Director And State Geologist
Mobile Phone
Email
Oct 28, 2025
L. W.
Data Manager
Mobile Phone
Email
Puerto Rico, Guaynabo
Sep 28, 2026
K. J.
Brand Marketing Manager
Mobile Phone
Email
Jun 16, 2026
B. L.
Senior Environmental Engineer
Mobile Phone
Email
Sep 27, 2026
I. R.
Principal
Mobile Phone
Email
Sep 25, 2026
L. B.
Sustainability Analyst Iv
Mobile Phone
Email
Jun 27, 2026

Frequently Asked Questions

What is GSI Environmental Inc. known for?

GSI Environmental Inc. was founded in 1986 and operates in the Environmental Services industry. You can contact GSI Environmental Inc.'s main corporate office by phone at

+1-713-522-****

. Explore GSI Environmental Inc.'s company overview page for more information.

What is GSI Environmental Inc.'s most common email format?

GSI Environmental Inc. employees' email format typically follows the pattern of FLast@gsi-net.com. Trying to find reliable and up-to-date employee contact data? Find more GSI Environmental Inc. email formats with LeadIQ.

How many employees does GSI Environmental Inc. have currently?

GSI Environmental Inc. has approximately 303 employees as of October 2026. These team members are located across 3 continents, including North America, Asia and Europe.

Who are GSI Environmental Inc.'s key employees and leadership?

As of October 2026, GSI Environmental Inc.'s key employees include:

Owner: S. R.
Vice President: R. S.
Vice President, Principal Hydrogeologist: A. D.
Vice-President: R. K.
Director And State Geologist: M. J.

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GSI Environmental Inc. Employee Directory

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