Founded in 1999, ISI – Indústria de Solas Injectadas, Lda – started in Felgueiras, Portugal, with a small idea, three employees, and an attitude focused on the future.
Over the years, we gained national and international notoriety, completed a variety of projects and built a solid reputation while increasing our team and production capacity. Fast-forward to today, we have a production capacity of 2.8 million pairs per year, 90 specialized employees, and the trust of countless clients and brands from around the globe.
We are international specialists in the design, development and manufacture of injected and prefabricated soles. With over 20 years of experience, a production that exceeds three million pairs per year, and the trust of some of the biggest fashion brands in the world, we are known for combining excellence, innovation, impact and sustainability in one word: ISI.
ISI’s mission is to create, develop and manufacture injected and premanufactured soles that blend a modern design, high-quality raw materials and a cutting-edge production process in a single product. Currently, we produce 2.8 million pairs per year that travel the world and serve as the basis for the most popular footwear of some of the biggest names in the fashion industry. But we don’t intend to stop here. We already have a production capacity of 4 million pairs per year that will allow us to continue to grow and take the ISI quality to even more clients and countries.