List of Member Firms
The GBA member firm list comprises geoprofessional firms who are dedicated to excellence in their professional practice. Geoprofessional firms provide geotechnical, geologic, environmental, construction materials engineering and testing, and related professional services. GBA Member Firms have more than 2,000 offices in 47 countries, employing more than 150,000 people. Browse this GBA Member Firm list with their headquarters locations. If you’re looking for something specific, you may wish to search our Member Firm Directory instead, which allows you to enter specific criteria and find both headquarters and branch locations.
This icon means the firm has been peer-reviewed within the last five years; while all GBA member firms strive for excellence, peer-reviewed firms have been willing to go one step further in submitting to a rigorous process of examination by their industry colleagues to identify opportunities for improvement.
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