Comprehensive product development with years of experience

Defour is your reliable product development partner. We offer comprehensive solutions, also considering the most demanding production and production capacity requirements.

Defour is a product development expert operating in Turku and Salo and serving all over Finland. We offer total solutions for the development of technical products, from manufacturability design to concept, all the way to product animations and prototypes. Our services also include verification, test kits and manufacturing. Defour is a full product development service partner.

Customer needs at the base of the product development process

Our product development process always starts with the definition of the needs of the customer and the end user of the product. The product development partnership with us is flexible and cost-effective. We adjust product development to the desired areas, exactly those that you as a customer need help with.

Our design service consists of several different areas, such as mechanical design, product design and usability design, and production standardization. Our goal is to provide our customers with help and add value by developing the product better or streamlining production.

Cooperation with Defour is smooth and easy. The customer can leave the product development project to us without worries and focus on the core business itself. We want to be your product development partner. We offer comprehensive solutions, considering the requirements of production and its growth from the very beginning.

We have a solution!

The goal of product development is always to improve the competitiveness and to produce new innovations or changes according to needs of customers and end users agile.


Our product development is based on years of experience, which combines the expertise of our long-term employees with the innovativeness of our new designers. You can give us even the most demanding assignments. From us you get excellence, professionalism and open-minded design.

We are proud to say that we have implemented even the wildest ideas into a functional product package.

We help create new success stories – get in touch!