42on

42on provides training, consultancy and support for Ceph.

IT Services and IT Consulting

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Headquarters: Baarn, Utrecht, NetherlandsSource: RevenueBaseRetrieved October 13, 2026
Employee range: 11 to 50Source: RevenueBaseRetrieved October 13, 2026
Founded: 2012Source: RevenueBaseRetrieved October 13, 2026
Published list appearances: 1 supported appearance ↗Source: RevenueBase lists

The company at a glance

What does 42on do?

42on focuses on Ceph and open source software. 42on is actively involved in the open source communities of Ceph, Apache CloudStack, libvirt and other projects.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

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Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

#3OF 11

Netherlands

Open source cloud infrastructure companies

Snapshot: September 4, 2026

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42on

#3 Open source cloud infrastructure companies

Snapshot: September 4, 2026

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Sources & data notes.

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 4, 2026. How the company lists are built.

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