The story
19th century: foundation
The company has its origins in the Nederlandsche Heidemaatschappij (English: Association for Wasteland Redevelopment), a land reclamation company founded in the Netherlands in 1888. As such, its original business focus was on the encouragement of agricultural development in the Dutch heather lands.
20th century: domestic, US and Brazil expansion
In the early 20th century the Heidemaatschappij was involved in all aspects of rural development including irrigation and forestry. In 1972, it was decided to heavily restructure the company, resulting in its division into two separate entities, the Association (or KNHM), which continued the company's traditional activities, and Heidemij, which became the commercial arm.
In 1993, the company merged with Geraghty & Miller, granting the new Arcadis a presence in the North American market and an initial listing on the Nasdaq index. Geraghty and Miller, headquartered in Long Island, New York, was subsequently rebranded as Arcadis North America.
Two years later, Heidemij became a listed company on the Next 150 index. During October 1997, the company opted to rebrand itself, changing its name to Arcadis. Two years later, it established a presence in the Brazilian market via the firm's acquisition of Logos Engenharia.
2000s: UK expansion
In June 2005, Axtell Yates Hallett was acquired and became a subsidiary of Arcadis NV, being rebranded as Arcadis UK. AYH was a British quantity surveying firm, founded by Stanley Axtell and his colleagues Messrs Yates and Hallett in the City of London in 1946. Since 1946, Axtell Yates Hallett firm grew steadily and broadened both its service base to include firstly project management and subsequently building surveying and facilities consultancy and its area of operation with the opening of regional and overseas offices in the United Kingdom. Following a period of retrenchment during the economic recession of the beginning of the 1990s, the firm was incorporated as the AYH Partnership in February 1994. One of the firm's last projects was Arsenal F.C.'s Emirates Stadium.
In April 2006, Arcadis acquired Summerfield Robb Clark, a practice in Scotland. Four months later, it also bought Berkeley Consulting, a practice specialising in infrastructure work. Arcadis UK merged with EC Harris on 2 November 2011, after a vote of EC Harris' 183 partners on 31 October 2011. In April 2012, the company acquired Langdon & Seah, an international construction consultancy company.
2010s–2020s: EU and North American expansion
In October 2011, Arcadis acquired EC Harris, an international built asset consultancy firm headquartered in the United Kingdom.
In 2012, Arcadis purchased Langdon & Seah, an Asia-based cost and project management consultancy.
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In October 2013, Princess Beatrix of the Netherlands visited Arcadis as part of the celebrations for its 125th anniversary.
In October 2014, the company acquired Hyder Consulting, a multi-national advisory and design consultancy specializing in the transport, property, utilities and environmental sectors, for £296 million. Hyder Consulting, now an integrated component of Arcadis can trace its roots back to as early as 1739.
In 2014, Arcadis purchased Callison, an international architecture firm based in Seattle, Washington. In October 2015, a new subsidiary, CallisonRTKL, was formed through the merger of two existing Arcadis subisiaries, Callison and RTKL.
In March 2017, Arcadis announced that its Supervisory Board has nominated Peter Oosterveer as CEO and Chairman of the Arcadis Executive Board.
In 2020, Arcadis acquired Over Morgen, a Dutch development and energy transition consulting firm.
In 2020, Arcadis acquired EAMS Group, a provider of enterprise asset management systems.
In July 2022, Arcadis announced it was acquiring IBI Group, a global architectural and engineering services company based in Canada, to be effective in September 2022.
In October 2022, Arcadis announced CEO Peter Oosterveer’s retirement, and that current Chief Operating Officer Alan Brookes would be nominated as his successor in 2023.
In December 2022, Arcadis acquired DPS Group, an Ireland-based international construction consultancy specializing in life sciences and semiconductor facilities.
In July 2026, Arcadis rejected two takeover bids from WSP. In September 2026, WSP abandoned its takeover bid. Arcadis later said it would sell most of its architecture business and cut 1,000 full-time staff.
From Wikipedia’s article on Arcadis, shared under CC BY-SA 4.0.5