More than 110 years old, founded in 1908, Vidraria Fonseca offers all kinds of glass products and services: decorative, lacquered and resin glass, mirrors, windows, safety glass, glass fittings, etc. It is born by the entrepreneurial spirit of Manuel Francisco da Fonseca with its first establishment in Rua das Velas, having from various establishments around the city.
Accompanying the technological evolution of glass, the constant modernization of its machines and the high professionalism of its collaborators provide the constant improvement of the centenary Vidraria Fonseca.

Emerging Pentagon is a company specializing in the manufacture of electrical resistors. It has a variety of products that allow it to meet various business lines and different requirements such as electrical resistances including dip resistance, tubular resistance, circular injection resistance, cartridge resistance, special resistors and control panel. They then manufacture resistors – straight annealed for workshops; for industrial ovens; for heating / dissipating batteries; flanges for immersion in liquids; for hotels, hospitals, the food industry, petrochemicals, aeronautics; fins, among others.

Casa Ferreira is a family business, founded in 1943, and is now on the third generation owned by the Ferreira family. It began by trading metals, screws, plates and tools, but since the 1970s it has become a specialist in electric and hand tools and has been a showcase and model for other houses in the business. As the city of Porto evolved, Casa Ferreira moved to its current premises, with excellent access, but keeping its traditional quality and variety of products, prestigious brands and personalised service intact. After all, it has more than 75 years of experience, professionalism in the business and dedication to the customer.