A household name in quality and reliability for nearly 100 years.


We are proud  on our products and service. De Maas BV built a solid reputation on quality  and supplier of engines, generators, generator sets, parts and service.

We can count on the trust of our customers

In our industry, high demands are made on quality, reliability, safety, and customer focus. We are proud that many of our clients consciously choose a long-term partnership with De Maas BV. What do we bring to that partnership? We provide a high level of knowledge, innovative products, and outstanding service.

Modern Technical Facility

In our well-equipped technical facility in Zwijndrecht, we manufacture engines and generators based on customer-specific technical specifications.

Qualified Technical Personnel

Excellently trained and certified technical specialists are ready to support our customers with their knowledge, insight and broad skill set

Global Technical Service

Our technical service is available 24/7 and immediately on-site. Our experienced technicians are ready to keep our customers running worldwide.

Reliable Specialist

Around the world, customers in the shipping and industry count on our engines, generator sets, parts, and service.


We have the most common parts of 'our' brands in stock. Is your part not in stock? Then we will ensure minimum delivery times.

Objective Advice

With our extensive expertise, we provide objective advice in selecting the engines and generator sets that precisely align with your desired functionalities, ensuring your satisfaction is our top priority.

Impeccable Service

The basis of our success is gaining the trust of international customers, whom we support with quality products and service.

We are here for you

Please feel free to contact us.

Our team can help you with all your questions.

Willem Verheij

General Director

John van Maaren

General Sales Manager

Robbert de Groot

Sales Engineer

Richard Kranendonk

Parts Manager

Kees Both

Parts Manager

Claudia Schuring

Back Office Manager

Our products and technical services?

This is what our customers say: