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About Us

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Tools that turn hesitation into action.

retter.ch was born from a simple realization:

In an emergency, what’s often missing isn’t the will to help—but a tool that works immediately.

 

The rescue sling bag wasn’t developed in an office, but in the field.

It emerged from situations where existing solutions were too complicated, too bulky, or too slow.

 

Since 2004, we’ve followed a clear approach:

Focusing on the essentials. Function over theory. Action over hesitation.

 

Every new development arises from direct dialogue with users.

Not on the drawing board, but where every second counts.

 

We don’t think in terms of standard solutions.

Custom designs are created where they’re needed—under real-world conditions.

 

Because in the end, it’s not about a product.

It’s about someone taking action.

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Leo Kleinstein, CEO & Engineer: “I never wanted to build a product. I wanted to solve a problem.”

There were situations where it became clear:

The existing resources aren’t enough. Too slow. Too complicated.

Not well-thought-out enough for what actually happens. So a simple question arose: What does a system need to look like so that everyone can act immediately? That question led to a solution. And that solution led to a system that is in use today. Not perfectly planned—but improved, tested, and adapted step by step. Always with one goal in mind: When it counts, it has to work.

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About Us

Contact

📞: +41 62 724 11 55

📧: info@retter.ch

Availability

Appointments by request

Location

retter.ch GmbH

Juraweg 11

CH-5722 Gränichen

Schweiz

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