Welcome to GDG USA

Advancing the offshore wind industry in the USA with our local knowledge and global expertise.

Gavin & Doherty Geosolutions Inc. (GDG) was established in the USA in 2021 and is focused on supporting the offshore wind industry.

Our teams in Rhode Island and California work alongside developers, contractors and public entities to reduce the uncertainties associated with both fixed and floating wind projects.
We are involved from the pre-auction stage through to detailed design and installation.

Our services include the full suite of GDG services, which include site characterization studies of array areas and cable routes, ground models, supply chain mapping studies (ports, fabrication, transportation & installation, etc), and design of fixed/floating foundations.


Click here to find out more about our offshore expertise

Your key contacts

Jan Mangal
USA Country Manager


Mohamed Mekkawy
Principal Geotechnical Engineer


Our Offices

Gavin & Doherty Geosolutions Inc.

225 Dyer Street, 2nd Floor, Providence, RI 02903, USA

Tel: +1 (281) 217-7003

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