Private company

Royal BAM Group

Logo: Beatts, CC BY-SA 4.0, via Wikimedia Commons4

Dutch construction company

Royal BAM Group nv (Dutch: Koninklijke BAM Groep nv) is a Dutch construction-services business with headquarters in Bunnik, Netherlands. Based on revenue it is the largest construction company in the Netherlands.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1869Founded1
  • Industryconstruction1
  • HeadquartersBunnik1
  • Websitewww.bam.com
  • Legal formnaamloze vennootschap1
  • LEI724500V38C5KTDY5BS933
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressRunnenburg 9, 3981AZ Bunnik, Netherlands3
  • Registered withThe Netherlands Chamber of Commerce, 300580193

Royal BAM Group nv (Dutch: Koninklijke BAM Groep nv) is a Dutch construction-services business with headquarters in Bunnik, Netherlands. Based on revenue it is the largest construction company in the Netherlands.2

Corporate structure

Royal BAM Group sits at the top of its group. 7 entities, 4 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Royal BAM Group Bunnik, Netherlands
    • BAM Nuttall Subsidiary · Camberley, United Kingdom
    • BAM Infraconsult B.V. Subsidiary · 100% · Gouda, Netherlands
    • BAM International B.V. Subsidiary · 100% · Gouda, Netherlands
    • BAM BELGIUM Subsidiary · Bruxelles, Belgium
    • BAM Utiliteitsbouw Subsidiary
    • ZEUGHAUS PPP AG Subsidiary · Moosseedorf, Switzerland

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

What it owns

What Royal BAM Group reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Stakes and holdings (Wikidata)

Things Wikidata records the company as owning, with the share when stated.1

The story

The company was founded by Adam van der Wal as a joiner's shop in 1869 in Groot-Ammers - a rural village in the Alblasserwaard region to the east of Rotterdam. At the end of the 19th century, Adam's son, Jan van der Wal, took over the business and worked as a construction contractor not only in the Alblasserwaard region but at further afield locations, including Vlaardingen and The Hague, where he soon opted to relocate to. Jan's son, Joop van der Wal, studied civil engineering in Delft prior to joining his father's company in 1926.

During 1927, the business was renamed Bataafsche Aanneming Maatschappij van Bouw- en Betonwerken, in English, Batavian Construction Company for Construction and Concrete Projects plc. ('BAM'); it transitioned from being a family-owned firm into a 'naamloze vennootschap' (public limited company).

The company was listed on the Amsterdam Stock Exchange in 1959. Starting in 1973, the company traded under the name BAM Holding N.V.

When the company reached its 125th anniversary on 12 May 1994, it received the right to add 'Royal' to its name. It continued to expand through acquisition, such as its purchase of rival companies Interbuild (in 1998), and Hollandsche Beton Groep ('HBG') (in 2002).

In November 2006 Royal BAM issued a profit warning, and launched an investigation into the incurring of £78m of losses at its German construction subsidiary. In July 2008, HBG was rebranded as Bam Construct UK. In mid-2010 the company's share price was impacted by a rights issue.

Several times during the 2010s Royal BAM produced poor fiscal results, attributed as the cause of job losses and a restructuring effort being launched in 2014. While performance had reportedly recovered in the UK by 2016, losses in both Germany and the Middle East were stated to have been incurred by the business towards the end of the decade.

In July 2020, Royal BAM announced that it was winding down its 600-strong BAM International business due to consequences of the COVID-19 pandemic. Up to 150 jobs were also to be cut at BAM Construct UK. In September 2021 Royal BAM announced the sale of its German interests, which cumulatively produced an annual turnover of €500 million, to the German real estate and construction company Zech Group and the Gustav Zech Foundation. Around this time, the management opted to concentrate on its core businesses in the UK, Ireland and the Netherlands.

In October 2022, Dutch authorities (the Fiscal Information and Investigation Service and the Public Prosecution Service) visited BAM International bv offices in Gouda, in an investigation relating to potential irregularities at some completed projects; Royal BAM was "fully cooperating" with the investigation. In July 2024, Royal BAM reported its UK construction business had suffered a £19.5m loss due to problems at Manchester's Co-op Live Arena, and would be cutting further jobs.

From Wikipedia’s article on Royal BAM Group, shared under CC BY-SA 4.0.5

Products and brands

The company's major operations include:

BAM Bouw en Techniek - Non-residential construction

BAM Wonen - Residential construction

AM - Area development

Read the full text

BAM Infra - Civil engineering in the Netherlands

BAM Interbuild - Non-residential and residential (apartments) building in Brussels and Flanders

BAM Construct UK (comprising BAM Construction and BAM Properties)

BAM Nuttall - Civil engineering in the UK (comprising BAM Ritchies - geotechnical)

BAM Contractors Ltd (BAM Ireland) - Building, civil engineering, facilities management, property and rail in Ireland (Formerly Ascon Contractors, Thomas Logan, Rohcon)

BAM Deutschland - Construction in Germany

Wayss & Freytag Ingenierbau - Civil engineering in Germany; as tunnelling specialist also active as joint venture partner in BAM's other home markets)

BAM International - Projects outside of Europe

BAM PPP - Investment company

From Wikipedia’s article on Royal BAM Group, shared under CC BY-SA 4.0.5

Subsidiaries and ownership

Subsidiaries

  • BAM Utiliteitsbouw

Also owns

From Wikidata.1

Acquisitions

  1. 1969Acquired BAM Utiliteitsbouw1
  2. Succeeded Hollandsche Beton Groep1
  3. Succeeded NBM-Amstelland1

Timeline

  1. 1869Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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