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Private company

VMS Software Inc.

Computer operating system

OpenVMS, often referred to as just VMS, is a multi-user, multiprocessing and virtual memory-based operating system. It is designed to support time-sharing, batch processing, transaction processing and workstation applications.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

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OpenVMS, often referred to as just VMS, is a multi-user, multiprocessing and virtual memory-based operating system. It is designed to support time-sharing, batch processing, transaction processing and workstation applications.2

Corporate structure

VMS Software Inc. sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

  • VMS Software Inc.
    • OpenVMS Owned ยท United States

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What VMS Software Inc. 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)

  • OpenVMS

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

Subsidiaries and ownership

Also owns

  • OpenVMS since 2014

From Wikidata.1

Acquisitions

  1. 2014Acquired OpenVMS1

Timeline

  1. 2014Acquisition Acquired OpenVMS1

Sources

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

  1. 1
  2. 2