Calder Holding comprises twelve operating companies and employs more than 900 people.
The organization operates nationwide in the Netherlands and is also active in the United Kingdom and Flanders. Its activities span work, education and care.
Based on the company’s public LinkedIn information, supplied through RevenueBase.
Its clients include health insurers, municipalities, public agencies, businesses, institutions and private individuals.
Companies within Calder Holding can provide services across these areas, including diagnostics, assessment, education, employment, career development, supported living, mental or psychiatric care, and civic integration.
Source: LinkedIn company description · Retrieved October 13, 2026
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Open the published source list.RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 18, 2026 and September 28, 2026. How the company lists are built.
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