Bernd Wenning steht mit der LSG 150 in der Hand neben Inga Wenning, welch die LSG S hält. Beide lachen in die Kamera.

History of LSGFrom a moment of crisis to a patented security solution

The roots of our company lie in Rhede. It was here that I, Bernd-Josef Wenning, managed Wenning Biogas GmbH & Co. KG – an agricultural business that I have developed over the years into a modern energy company with biomethane production.

The birth of the Leak Stop Gun was marked by a formative event: two million liters of liquid manure escaped uncontrollably from a tank in an agricultural facility due to a massive leak. Neither the fire department nor specialized rescue teams had the right tools to seal the leak in time and prevent the impending environmental catastrophe. Witnessing this moment was the impetus for the development of the Leak Stop Gun. My goal was clearly defined right from the start: To create a technology that helps where seconds count. A system that seals leaks immediately, reliably and without complicated preparation – to protect people, the environment and property.

What began as a visionary idea quickly led to the founding of Leak Stop Gun GmbH. Today, the original pioneering spirit has grown into a modern company with professional production. The LSG is now a globally patented solution that has evolved beyond a traditional family business.
Today, fire departments, civil protection organizations, industrial companies and the German and European Navy rely on the operational power of our technology

The Leak Stop Gun is far more than just a tool – it is a strategic investment in safety and operational capability. It immediately stabilizes critical situations and creates the basis for planned, long-term measures.

Bernd Wenning untersucht die LSG 150.
Bernd-Josef Wenning
Inventor of the Leak Stop Gun

Our partners

Our company headquarters are located in Rhede, Germany. From here, we oversee and coordinate the entire production process of the Leak Stop Gun. We work closely with experienced and renowned regional suppliers who manufacture key components for the LSG.

The core assembly takes place in the Netherlands. Quality control and the final functional tests are conducted personally by Leak Stop Gun GmbH to ensure the highest quality standards. Once approved, the product is shipped directly from Rhede to our customers.

  • High quality & expertise
  • Personal relationships – smooth cooperation, high availability, flexibility
  • Reliable supply chain – constant supply and punctual delivery
  • Sustainability – supporting local businesses, environmentally friendly