Gas Engines

Our services related to stationary energy systems (combined heat and power units and biogas solutions).

Mehr Details

Diesel Engines

Our services related to mobile engines (marine and railway).

Mehr Details

Mechanical Processing

Our services for the reconditioning of engine components.

Mehr Details

Engines, Pumps & Spare Parts

Our services for the provision of spare parts, wear parts, replacement parts, and new components.

Mehr Details

Always here for you!

Our 24/7 Service-Hotline

Our service for you: 24 hours / 7 days a week!

(+49) 431 58795-0

Worldwide service for your engines

Worldwide service for your engines

Learn everything about our services. Tested and certified quality for more performance.

Industries and Sectors

Find out in which industries we operate -
at every point in the world.

Mechanical Fabrication and Processing

Mechanical Fabrication and Processing

Learn everything about our services. Tested and certified quality for more performance.

Decades of experience

Wulf Johannsen has been in business for more than 90 years!

Services over four generations

Worldwide Service

24 hours a day, 7 days a week

We get to work worldwide

Certificates, Quality & Safety

Certifications according to ISO 9001, 14001, 50001 and more...

Our Promise

Welcome to Wulf Johannsen!

Welcome to Wulf Johannsen – Personal. Competent. Reliable.

For over 92 years, our family-run company has stood for quality, dependability, and personalized service. What began in 1932 as a small cylinder and crankshaft grinding workshop founded by Wulf Johannsen in Kiel has since evolved into a modern service provider with a strong network of long-standing suppliers and partners – and, most importantly, many loyal customers.

Our greatest asset? Our people.
A motivated, experienced, and highly qualified team supports you with passion, expertise, and dedication – whether on-site around the world or at our facility in Kiel. We place great importance on personal contact and being attentive to your needs.

As a fourth-generation family business, we value long-term relationships – with our customers, partners, and employees alike. We invest purposefully in training and development, creating a work environment where our teams can grow and thrive.

Our mission: Not only to meet your expectations but to exceed them.
Through technical precision, flexibility, and a commitment to the highest quality standards, we continuously enhance our services.

Your success is what drives us – for more than 92 years.

Jan-Willem Storm | Managing partner

92

Years in business

400+

Engines worked on in 2024

70

Employees

Quality and Certifications

We offer you a comprehensive service and support system that covers all aspects of safety, operation, and maintenance of your engines and energy systems.

Our certifications according to DIN EN ISO 9001, SCC** (Safety Certificate Contractors), the RAL Quality Mark, and the "Safety with System" seal of approval ensure independent, manufacturer-neutral quality at the highest level.

More information & downloads

News

Stay in touch and up to date.

Lesen Sie regelmäßige Updates, Messeinformationen und Berichte aus unserem Unternehmen.
Wir zeigen, was wir bewegen!  

Erfahren Sie mehr