Contract Manufacturing

OEMs and contract manufacturers differ primarily in terms of control, intellectual property ownership, and design responsibility. An Original Equipment Manufacturer (OEM) produces products according to a client’s precise design, with the client retaining ownership of the brand and intellectual property. In contrast, a Contract Manufacturer (CM) typically manufactures parts or complete products based on the client’s specifications, while the client maintains control over the design and production requirements. In many cases, contract manufacturing forms part of an OEM relationship, where the CM serves as the production partner or factory, and the client acts as the OEM.

Quality and compliance are central to everything we do at Rosti Group. All of our 12 manufacturing facilities operate under internationally recognised certifications, including ISO 9001, ISO 13485 (medical), ISO 14001, and ISO 50001, ensuring rigorous standards for quality, sustainability, and energy management.

Our teams follow robust quality assurance processes, including advanced product validation, in-line inspections, and traceability systems to guarantee consistency and reliability across every production run. For highly regulated sectors such as medical devices, automotive, and consumer goods, we ensure strict adherence to industry-specific standards and regulatory requirements.

Through continuous improvement programmes, data-driven monitoring, and close collaboration with our customers, we deliver products that not only meet but often exceed expectations for quality, safety, and compliance.

Yes. At Rosti Group, our support goes far beyond plastic injection molding. Our Plastic Contract Manufacturing services provide full design and engineering services, helping customers bring ideas from concept through to production.

Our teams collaborate with you at every stage of the product lifecycle — from initial design for manufacture (DFM), prototyping within 72 hours, and material selection, through to tooling, testing, and full-scale production. By combining advanced simulation, rapid prototyping, and in-house engineering expertise, we ensure your products are optimised for performance, cost efficiency, and sustainability.

This end-to-end approach not only accelerates time to market but also reduces risks, waste, and costs throughout the supply chain.

Rosti operates 12 state-of-the-art production facilities strategically located across Europe, North America, and Asia. This global footprint allows us to manufacture close to your end markets, helping to reduce lead times, optimise supply chains, and support your sustainability goals. By accessing the full breadth of our plastic injection molding capabilities at any of our sites, you benefit from consistent quality, efficiency, and innovation worldwide.

The advantages of this approach include reduced time to market, the ability to navigate economic headwinds with greater flexibility, and opportunities to lower costs through optimised production and logistics – helping you stay competitive in a fast-changing marketplace.

From an early stage in our contract manufacturing process, sustainability is a core element of conversations with our design and innovation teams to ensure that we are able identify opportunities to help you reduce your impact on the environment.

We are continuously investing to ensure all aspect of our business operations are reducing Rosti’s impact on the environment and this can be seen throughout all aspects of our contract manufacturing services.

From providing options to manufacture in sustainable and recyclable materials during the design phase through to energy-efficient machines. Adopting automated and lights-out production enables us to move away from traditional manufacturing methods, helping to drive efficiencies when it comes to material utilisation and reducing waste.

When planning the logistics and delivery of a finished product, packaging is an integral part to to transporting high-quality products. Our Contract Manufacturing team support customer to select light-weight returnable or recyclable packaging to reduce waste and emissions whilst maintain quality standards.

Contract manufacturing happens when one company partners with a specialized manufacturer to produce specific components or products for a set period of time. Think of it as outsourcing production to experts who can deliver exactly what you need, when you need it.

In a typical arrangement, a contract manufacturer produces parts, components, or even complete products according to the client’s specifications. These items are then used by the client in their own manufacturing process or incorporated into their final products. Many contract manufacturers operate as third-party specialists, either focusing solely on subcontracting or supplying products to multiple companies.

Learn more about contract manufacturing.