A400 Projetistas e Consultores de Engenharia, based in Oporto, is a leading engineering consulting firm in Portugal, with a growing international presence. Our mission is to transform the future through engineering, technology, and sustainability. We offer innovative and sustainable solutions in a wide range of engineering disciplines, including structural design, hydraulic installations, thermal and acoustic engineering, gas supply design, fire safety design, and mechanical installations.

At A400, we take pride in our multidisciplinary team of specialized professionals who are committed to delivering integrated projects that meet our clients' needs. We prioritize integrity, excellence, and social responsibility in our work, striving to be leaders in the market and an international reference. Our approach is grounded in continuous improvement, investing in advanced technologies and implementing a Quality, Environment, and Social Responsibility Integrated Management System.

We have also embraced Building Information Modeling (BIM) technology to optimize project resources and ensure greater reliability, efficiency, and cost-effectiveness. With a culture of innovation and a dedication to customer satisfaction, A400 is your trusted partner for engineering solutions. Let us help you build a sustainable future