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Innovative Engineering Solutions

Our team truly listens to clients, diagnoses the problem, and provides solutions that achieve effective outcomes. We collaborate with our clients to offer creative solutions that overcome barriers and respect budgets and deadlines.


GTA’s autonomous offices have local teams that are empowered to be responsive to local market demands. Each of our offices has the expertise to provide the quality of service that our clients expect.

Construction Services

We provide observation and testing services on virtually every type of construction project, for projects such as high-rise buildings, pipelines, tunnels, landfills, and shoreline construction, even in the most difficult of subsurface conditions.

Environmental Services

Our environmental professionals provide innovative strategies to manage complex environmental issues and reduce compliance costs in various regulatory arenas. Our commitment to excellence in quality and service affords our clients a valuable resource to assess the impact that natural resources may have on a project.

Geotechnical Services

Our geotechnical services characterize subsurface conditions and provide comprehensive design recommendations that mitigate difficult site problems. Our in-house drilling and laboratory departments provide significant support to our engineers.

Drilling Services

We provide subsurface exploration and drilling services to clients through conventional test borings, cone penetrometer soundings, and monitoring well installations.

Join Our Team!

If you want to start a fulfilling career at a people-focused firm where you can be proud of the work you produce, then we would love to hear from you.