Ing.-Buero Querin GmbH – Your professional
Partner for technical and nautical Equipment!

Founded in 1983, the Ing.-Buero Querin GmbH has established itself as a reliable partner for the supply, installation, repair, and maintenance of communication and navigation equipment for the commercial shipping industry worldwide.

With our 24/7 service support we arrange and coordinate service attendances on a daily basis. Because of their high level of skill, our technicians are used by our customers around the globe.

In addition to our own technicians, we have an extensive network of qualified service partners in the marine industry. Based on years of experience with these partners, we are able to ensure the same service quality that we do expect as our standard.

Our longtime experience, our expertise, our continuous strive for perfection, as well as our customer oriented flexibility and dependability have made the Ing.-Buero Querin GmbH a well-known partner to mariners.

From our large stock of new equipment, as well as spare parts, consumables and supplies we are able to provide your fleet with the required products on very short notice.

Our network for our customers

Our aim is not to maximise the short-term profit from a customer. Our aim is to advise and support the customer in a future-orientated, long-term economic manner, because this is the only way to create a symbiosis that benefits both sides, rather than a one-sided economic relationship.

Christian Querin | CEO, Ing.-Buero Querin GmbH

Brand new „state-of-the-art“ technology as well as spare parts for your fleet!

With our extensive inventory of new equipment as well as spare parts and consumables we are able to supply your fleet with the required products on very short notice.
Even for equipment where the manufacturers have already ceased the support, we still carry and stock spare parts. „Time is money“ – therefore all enquiries are handled immediately and the ordered parts are shipped the same day.











Excellent performing equipment and excellent service are the foundation for a smooth communication at sea. We install, maintain and repair state-of-the-art communication equipment for any kind of use and are present as your reliable worldwide partner.
Internet, telephony, satellite-TV, GMDSS-systems or radio equipment – Ing.-Buero Querin GmbH keeps you connected.


From anemometer, AIS and barograph to GPS and radar systems, we at Ing.-Buero Querin GmbH offer first-class navigational equipment for the commercial shipping industry.
We operate with a staff of highly qualified and skilled technicians to serve your repair, installation, or maintenance requirements. Wherever your vessel is sailing- with us you will always stay on track!

Safety First – Ensure the safety of your crew

The safety of the crew onboard needs to be ensured at all time. Therefore, we only sell and service the premium quality products of the market leaders.

Our emergency Service – Your direct contact!

Do you require urgent assistance and our service? In an emergency, the Querin service team is at your side at all times!

Ing.-Buero Querin GmbH
Gerstenkamp 18
21739 Dollern | Germany

Phone: +49 4163 86691-00
Mobile: +49 178 4663918