At JSL, we’re dedicated to producing excellent products. Our philosophy is centered on listening to our customers to offer high-quality products that exceed their expectations.

As a competitive business, we strive to anticipate our customers’ needs and inspire them with our products. We continuously analyze our products to ensure they meet the highest standards of quality, safety, and durability. To achieve this, we rely on the expertise of our team of designers, architects, builders, installers, and other industry professionals.

Our commitment to excellence is reflected in the products presented in our catalog. Each product is manufactured to the highest quality standards, designed for easy installation, use, and maintenance. These factors have earned the JSL brand a long-standing reputation for quality in the market.

To ensure timely delivery and availability, we’ve invested in the latest information technology to process orders efficiently and quickly. We’ve also embraced technological evolution as an essential part of our philosophy, making it a pillar of our development. This, coupled with our commitment to our employees, helps us stay at the forefront of our industry.



Over fifty years ago, the Thorbjörnsen family founded JSL, anticipating a growing demand for electrical materials in the national market.

Initially, the company produced electrical plugs and sockets for household use, as well as lighting equipment on a small scale in the 1960s. By the end of the decade, JSL had established its first factory and developed new product lines, especially for low voltage electrical installations.

While initially focused on the national market and ex-colonies, JSL recognized the opportunities presented by Portugal’s entry into the European Union in the 1980s. Despite the challenges of exporting during a period of economic recession, rising imports, and increasing foreign debt, JSL invested in a new factory, expanded its product lines, and developed a new strategy to reach foreign markets.

JSL’s investment paid off, and the company gained recognition and success in the international market. Today, JSL is a well-established and respected global brand, with a reputation for producing high-quality electrical materials. The company’s commitment to innovation and customer satisfaction continues to drive its success, building on the foundations laid by the Thorbjörnsen family over fifty years ago.


CabazProdutosInstitucional longJSL has a strong global presence in over 50 countries, offering a diverse range of high-quality products for electrical and telecommunications installations, including:

  • Photovoltaic shields
  • Switchgear
  • Cabinets for telecommunications
  • Column enclosures
  • Watertight enclosures, cable glands, and connectors
  • Boxes for indoor installation
  • Gutters and accessories
  • Rails for pipes
  • Plugs and industrial sockets
  • Fixing material
  • Energy distribution boards and ICT boxes
  • Pipes and accessories

JSL takes great pride in the quality of its products, and has been certified with the ISO 9001:2015 standard for its Quality Management System since 1993, making it one of the first companies in Portugal to achieve this. Additionally, all products covered by applicable Directives carry the CE marking as required by law. JSL goes even further in its commitment to quality, with most of its product ranges certified by reputable national and international bodies such as:

  • CERTIF – Associação para a Certificação de Produtos (Nacional) – Certified with the CERTIF mark
  • LCIE – Laboratório Central das Indústrias Eléctricas (França) – Certified with the NF mark
  • VDE – Instituto de Certificação Alemão de produtos eléctricos – Certified with the VDE mark
  • DEKRA – Instituto de Certificação Holandês – Certified with the KEMA-KEUR mark
  • Intertek-SEMKO – Certified with the Swedish Quality Mark SEMKO

JSL is confident that its products are well-positioned in both professional and domestic markets, and remains committed to maintaining the highest quality standards while expanding its reach to new markets.



JSL is committed to environmental responsibility and believes in a more sustainable development of the planet, as well as the preservation of its environment. We recognize that it’s our duty to take special measures to minimize the environmental impact of our operations. Therefore, we strive to reuse, recycle, rationalize, and reduce consumption in all aspects of our business.

We prioritize the best environmental management practices and comply with the requirements of the environmental standards in force. Our team constantly focuses on, discusses, values, and takes into consideration the environmental impact of our manufacturing processes to implement best practices.

As an organization, we are inspired by the beauty and magnificence of nature, and we strive to preserve it for future generations. We recognize that we have a temporary loan on this planet and that we need to bequeath a sustainable environment to our children.

Quality and Environmental Policy of JSL Material Eléctrico


At JSL, we strive for a global and integrated business approach that addresses the needs of our market, resulting in effective penetration in national and international markets, and stability in our positions.

Our accumulated experience and expertise in diverse technologies enable us to provide innovative and tailored solutions that meet our clients’ specific needs, leading to higher levels of client satisfaction.


Our mission is to provide our customers with innovative, certified products that meet their specific needs. We aim to provide excellent after-sales service to meet our customers’ assistance requirements. We invest in market and product diversification, emphasizing the internationalization of JSL.


At JSL, we value the following:

  • Respect for agreed-upon deadlines and values.
  • Quality, which is demonstrated through our scrupulous adherence to client specifications and our commitment to offering certified products.
  • Stable employment for our workers.
  • Establishing close relationships with our customers based on trust, competence, and partnership.
  • Respect for the environment and our commitment to promote sustainability.