Gwtr

About

Gwtr is a private headquartered in Deventer, Netherlands specializing in Geothermal, Energy Storage.

Gwtr (Grondwatertechniek Ritsema) is an independent ground drilling company operating in the Netherlands and Germany. The company offers comprehensive drilling services for geotechnical investigations, environmental remediation, archaeological surveys, and renewable energy systems. Key specializations include closed-loop heat/cold storage systems (gesloten systemen warmtekoude opslag), sonic drilling techniques, borehole water infiltration, injection methods, and soil injection. Services span land and water-based drilling from 1 to 80 meters depth. The company is certified ISO-9000:2015, VCA*, and holds various BRL SIKB protocols and industry certifications.

Certifications & Awards