At ISI Plast, everything revolves around your idea, which we bring to life in plastic—in any possible shape, color, size, or quantity. Few limitations, many possibilities.
We don’t have our own product range; we work exclusively on commission and fully custom-made. That’s why we can devote 100% of our focus to what truly matters: your unique product.
Do you already have an idea but not yet a concrete design? No worries—our specialists and product designers are happy to think along with you from start to finish:
We start with a personal conversation to discuss your ideas and needs. Our team actively thinks along with you and provides advice on the design and the possibilities.

Based on your vision, we create a design and, if desired, a prototype (in wood or via 3D printing). This gives you a clear view of the final product, and together we can fine-tune the last details.

Based on the design, a custom mould is manufactured. This mould forms the basis for the production of your product.

Using our advanced rotomoulding techniques, we manufacture your product exactly as designed, in the desired color, shape, and size. At this stage, post-processing can also take place, such as adding openings, screw holes, or additional components.

Each product is thoroughly inspected and, if needed, tested for conductivity, watertightness, dimensions, etc. We then deliver the final product carefully and as agreed.

We proactively think along with you when it comes to stock management. This way, we can keep products in stock ourselves and align supply optimally with your needs.


Every unique product starts with a good conversation. Whether you already have a concrete design or you’re still brainstorming, our team is ready to think along with you and bring your vision to life. We love a challenge—so feel free to challenge us with your ideas!
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