Sweco Strengthens Its Position in Belgium with the Acquisition of Assar Architects
Sweco, Europe’s leading architecture and engineering consultancy, has announced the acquisition of Assar Architects, a renowned architectural firm recognised for its expertise in designing large-scale projects across both the public and private sectors. This strategic move significantly enhances Sweco’s architectural presence in Belgium and Luxembourg, reinforcing its integrated service offering in the region.
Assar Architects is widely respected for its approach to inclusive and sustainable architecture, with a diverse portfolio spanning offices, commercial complexes, healthcare facilities, educational institutions, defence buildings, and urban planning projects. The firm’s design philosophy focuses on creating environments that promote accessibility, sustainability, and long-term community value.
Among its landmark projects are the NATO headquarters in Brussels, several of Belgium’s largest hospitals, and major developments for European institutions and multinational organisations. Through these projects, Assar Architects has established itself as one of Belgium’s foremost architectural practices, known for its technical excellence and strong client relationships.
With this acquisition, Sweco gains approximately 150 new experts, who will be integrated immediately into its operations. Assar Architects reported a turnover of approximately EUR 16.5 million in 2024, underscoring its strong performance and market presence. The transaction represents a major step in Sweco’s long-term growth strategy, focused on expanding its multidisciplinary capabilities and deepening its commitment to sustainable development across Europe.
“I warmly welcome Assar Architects and their inclusion as a new and important part of Sweco, the European leader in architecture and engineering consulting,” said Erwin Malcorps, Business Area President of Sweco in Belgium.
“We have collaborated successfully on client projects in healthcare, government, and defence, as well as on complex urban development projects that meet stringent sustainability standards. Together, we are ideally positioned to deliver maximum client value in the ongoing green transition and modernisation of the built environment in our regions,” Malcorps added.
Advancing Sustainable and Smart Urban Development
Belgium and Luxembourg are currently undergoing a transformative shift toward sustainable, energy-efficient, and smart urban development. The focus on infrastructure renewal, digital innovation, and climate adaptation aligns closely with European Union programs such as the European Green Deal, NextGenerationEU, and Horizon Europe.
Sweco’s integrated approach — combining engineering, architecture, and sustainability consulting — places the company in a strong position to support these transitions. Its expertise enables the development of holistic solutions that balance functionality, design, and environmental responsibility, helping cities and communities meet ambitious climate goals.
The acquisition of Assar Architects further strengthens Sweco’s ability to respond to this growing demand. By bringing together multidisciplinary teams under one roof, the company can offer end-to-end solutions across the entire project lifecycle — from planning and design to implementation and long-term sustainability management.
Building on a Strong Foundation in Belgium
Sweco already holds a leading market position in Belgium, where it has established itself as a trusted partner for both public and private sector clients. The company’s strength lies in its ability to create synergies between engineering and architecture, delivering innovative, efficient, and sustainable solutions tailored to local needs.
In 2023, Sweco expanded its presence in the country by acquiring VK architects+engineers, adding 600 experts and substantially broadening its technical and design capabilities. With the addition of Assar Architects, Sweco continues its growth trajectory, deepening its expertise and reinforcing its leadership in Belgium’s architectural and engineering sectors.
This latest acquisition represents more than just an expansion of talent and resources; it reflects Sweco’s strategic vision for the future of the built environment. As cities face increasing challenges related to climate change, energy transition, and population growth, Sweco aims to play a pivotal role in shaping a more sustainable, resilient, and inclusive urban landscape.
A Shared Vision for the Future
The integration of Assar Architects into Sweco marks the union of two organisations that share a common commitment to sustainability, innovation, and design excellence. Both firms are guided by a belief that the built environment should not only meet the functional needs of today but also contribute positively to future generations.
Through their combined expertise, Sweco and Assar Architects will continue to push the boundaries of modern architecture — designing buildings and spaces that are energy-efficient, adaptable, and environmentally responsible. Their collaboration will empower clients to achieve greater sustainability outcomes while maintaining high standards of quality and design integrity.
As Belgium and Luxembourg continue their journey toward greener, smarter, and more inclusive cities, Sweco’s expanded team — now including the talented professionals from Assar Architects — stands ready to drive innovation, deliver value, and shape the cities of tomorrow.