Full-Service Engineering in MEP, Structures and BIM
31 years. 145 experts. 3,000 projects. MEP, Structures, BIM and Coordination all in-house, in the same team. For contractors, architects and industrial clients who can't afford surprises on site.
Why Choose A400
What we commit to is what we deliver
Native BIM since 2014
1st BIM Excellence Award in Portugal
LEED Provider
1 of only 4 across Europe (USGBC)
Proven structural savings
of €700k to €4M per project
Proprietary GPS software
for real-time project management
Porto · Lisbon · Luanda
Headquarters in Porto, with offices in Lisbon and Luanda.
Projects
Years of Experience
Experts
Departments
Integrated engineering, from foundation to roof
A400 is not a set of offices working in parallel. It is a multidisciplinary engineering consultancy with 10 departments, one team and zero handoffs between disciplines.
MEP, Structures, BIM, Sustainability and Project Coordination, all produced in the same office, by the same team, from concept stage through to on-site technical support. A single point of contact. Full control over cost and schedule.
Services
Engineering Solutions Tailored to Every Project
Our team works to minimise costs and maximise results, ensuring our clients achieve the best return on their investment.
Air-conditioning and ventilation systems that ensure thermal comfort and indoor air quality.
Have a project that requires real coordination?
Our team analyses your project and shows how an integrated approach can reduce risk, save time and avoid design changes during construction.
Engineering in Portugal and Internationally
A400 operates from Porto (headquarters) and Lisbon, with an office in Luanda and active projects across Africa. Dedicated teams handle large-scale, technically complex national and international projects - with the same integrated model, regardless of geography.
Reference Projects
More than 3,000 projects. Hospitality, residential, industry, offices and infrastructure. What sets A400 apart is not the number - it's the results: €1.4M saved on the structure at Oitavos, zero clashes across 4 hotels for Overseas, 30,000 m² of industrial expansion for Cabelte with no production downtime.