Industrial rope processing · Kiel, Germany

Ropeworks,
redefined.

Selvyk industrialises the finishing of rope — bringing reproducibility, scalability, and process discipline to an industry that has long relied on craft alone.

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Potential

Manufacturing rope is
highly automated. Finishing it is not.

Modern rope production is efficient, precise, and industrially mature — delivering complex products at scale. Yet once the rope leaves the production line, it enters a bottleneck: finishing through knotting and splicing remains labour-intensive, difficult to standardise, and costly. That gap limits what rope products can become — and where they can be used.

Selvyk industrialises and automates rope finishing — unlocking rope's full potential as an engineering material.

The craft remains the foundation. We scale it.

Selvyk's automated rope finishing — braiding and spooling machinery, and hand-finished knotting, splicing and termination.

What we do

Rope leaves the production line.
Selvyk takes it from there.

Along the rope value chain, Selvyk focuses entirely on finishing and processing. We take what manufacturers produce and turn it into qualified end products — through knotting and splicing, at series scale and consistent quality.

Quality

Defined process parameters replace artisanal variability — delivering consistent, documented output at every unit.

Technology

Proprietary knotting and splicing tooling, developed in-house and designed for partial automation.

Scale

Every process is designed for series production — in unit counts, cycle times, and repeatable outcomes.

Vision

A new standard
for rope products.

Selvyk's tools and processes will become an integral part of the rope value chain — unlocking the full potential of rope.

Finished rope products will evolve into standardised, qualified, and certified solutions — opening previously inaccessible applications and industries, and displacing metal and plastic-based components where rope offers a superior alternative.

Team

Built by
people who know the sea.

Trygve Zierul

Founder & CEO

Trygve Zierul

Ståle Zierul

Co-Founder & CTO

Ståle Zierul

Paul Benk

Co-Founder & CLO

Paul W. Benk

Contact

Let's
talk.

We partner with rope manufacturers, industrial buyers, and B2B customers across sectors. If you are interested in working with us, we would be glad to hear from you.