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Solid Foundations. Lasting Impressions.
Welcome
Welcome
Earth Investigation Systems Limited (EISL), founded in 1995 by Dr. Derek Gay, is a civil and geotechnical engineering consultancy and material testing facility. Originally operating as Earth Systems Engineering Limited, the company expanded in 2002 to offer site investigations, material testing, QA/QC, and advanced geotechnical design. Led by Dr. Gay and a skilled team, EISL is recognized for efficiency, accuracy, and integrity. Testing is primarily done to ASTM standards, with flexibility for other international standards.
Our Vision
Our Vision
To become the premier Civil Geotechnical Engineering Consultancy firm, serving the global community – with specialization in the unique terrain and climatic environment of our Caribbean Region.
Our Mission
Our Mission
Through integrity, accuracy and efficiency, we strive to provide our clients with the most innovative and cost effective civil geotechnical engineering solutions.
Our Services
Our Services
Geotechnical and Forensic Engineering Consultancy
Foundation engineering, asphalt mix design, ground improvements, and much more!
Laboratory and Field Testing
Testing of Asphaltic Concrete, Pavement Aggregates, and much more!
Licensed UAS Capabilities
Licensed UAS Capabilities
Boots on the Ground, Eyes in the Sky
Boots on the Ground, Eyes in the Sky
We use licensed Unmanned Aircraft Systems (UAS) to capture high-resolution aerial imagery and perform topographic scans. This technology allows us to deliver more accurate, detailed, and cost-effective site investigations, giving our engineers deeper insights into ground conditions before designing begins.
Faster Data Collection
High-accuracy 3D terrain models
Safer Access to Difficult Terrain
Looks Familiar?
Looks Familiar?
From north to south — highways, industrial estates, housing developments, landslides or commercial buildings, just to name a few — our footprint spans not just across Trinidad and Tobago, but reaches the wider Caribbean Region as well!
30
30
YEARS IN BUSINESS
YEARS IN BUSINESS
OVER
OVER
1000
1000
PROJECTS EXECUTED
PROJECTS EXECUTED
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