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OCT 20, 2014 | Press Release

ARCADIS completes Hyder and Callison acquisitions to strengthen its position as the leading global natural and built asset design & consultancy

October 20, 2014 - ARCADIS (EURONEXT: ARCAD), the world's leading natural and built asset design & consultancy firm, announced today that with the completion of both the Hyder and Callison acquisitions it has gained a truly global position and is now able to also deliver solutions for its clients in six out of the seven continents, including Australia. Through these steps the company has also added a number of highly iconic projects to its roster.

ARCADIS completed the acquisitions of both Hyder Consulting and Callison at the end of last week. Hyder Consulting, a 4,600 people design and engineering consultancy with activities in the UK, the Middle East, Germany, Asia and Australia, is a leader in infrastructure, water and buildings. Callison, a 1,000 people high level architectural and interior design consultancy with offices in the United States, China, Europe, Middle East and Mexico, specializes in retail and office design and large mixed use projects. These acquisitions add more than €500 million in gross revenues thereby increasing ARCADIS' gross  revenues to €3 billion and creating the leading global natural and built asset design & consultancy firm with more than 28,000 talented professionals across the globe.

Geographically, ARCADIS' positions in North America, the UK, Continental Europe, and Emerging Markets have been strengthened by the acquisitions. The deals also for the first time provide direct access to the Australian market, where ARCADIS can use the existing Hyder footprint to provide a broad range of solutions to its multinational clients, as well as providing new solutions to local clients.

Through Hyder, ARCADIS now becomes the oldest consulting engineering company on record, with activities dating back two hundred and thirty years. A number of iconic projects become part of our combined history, including the Tower Bridge in London, the Sydney Harbor Bridge in Australia and the Burj Khalifa in Dubai, the tallest building in the world on the Hyder side. Iconic Callison projects include the recently completed Lotte Center Hanoi, the Burberry flagship store in Chicago, Illinois as well as all of the Nordstrom high end retail store work over the last 20 years. 

"We are happy and proud to welcome the talented professionals of both Hyder and Callison to ARCADIS. The complimentary and world-class capabilities that they bring will help us better serve our combined client base with global reach and help us deliver on our passion of improving the quality of life and being recognized as the best in our industry." said Neil McArthur, CEO of ARCADIS.

For more information please contact Joost Slooten at +31 (0) 20 2011083, or outside office hours at +31 (0) 6 27061880 or

About ARCADIS: ARCADIS is the leading global natural and built asset design & consultancy firm working in partnership with our clients to deliver exceptional and sustainable outcomes through the application of design, consultancy, engineering, project and management services. ARCADIS differentiates through its talented and passionate people and its unique combination of capabilities covering the whole asset life cycle, its deep market sector insights and its ability to integrate health & safety and sustainability into the design and delivery of solutions across the globe. We are 28,000 people that generate €3 billion in revenues. We support UN-Habitat with knowledge and expertise to improve the quality of life in rapidly growing cities around the world. Please visit:

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