Private company

Attachmate

Logo: Attachmate Corporation, Public domain, via Wikimedia Commons3

Defunct software company

Attachmate Corporation was a software company founded in 1982 which focused on secure terminal emulation, legacy integration, and managed file transfer software. Citrix-compatibility and Attachment Reflection were enhanced/added offerings.2 It is part of Micro Focus International.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1981Founded1

Attachmate Corporation was a software company founded in 1982 which focused on secure terminal emulation, legacy integration, and managed file transfer software. Citrix-compatibility and Attachment Reflection were enhanced/added offerings.2

Corporate structure

Attachmate is part of a group headed by Open Text Corporation. 188 entities, 44 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Open Text Corporation Waterloo, Ontario, Canada
    • Carbonite Boston, Massachusetts, United States
    • Micro Focus International Newbury
      • Attachmate Seattle
      • NetIQ Subsidiary · Houston
      • Novell Subsidiary · Provo
      • Vertica Subsidiary · Cambridge
      • Micro Focus (United States) Subsidiary · United States
      • Micro Focus CZechia Subsidiary · Czechia
    • Actuate Corporation Subsidiary · San Mateo
    • Hightail Subsidiary · San Mateo
    • MailStore Subsidiary
    • Open Text Coöperatief U.A. Subsidiary · 100% · Hoofddorp, Netherlands
    • OPEN TEXT TECHNOLOGIES INDIA PRIVATE LIMITED Subsidiary · 100% · Hyderabad, India
    • 3304709 Nova Scotia Limited Subsidiary · Nova Scotia, Canada
    • 8493642 Canada Inc. Subsidiary · Canada
    • AppRiver Canada ULC Subsidiary · Nova Scotia, Canada
    • AppRiver, LLC Subsidiary · Florida, United States
    • Arm Research Labs, LLC Subsidiary · Florida, United States
    • Atarlabs Bilişim Anonim Şirketi Subsidiary · Turkey
    • Attachmate Group Germany GmbH Subsidiary · Böblingen, Germany
    • Autonomy HoldCo B.V. Subsidiary · Netherlands
    • AUTONOMY SOFTWARE ASIA PRIVATE LIMITED Subsidiary · Bangalore, India
    • Autonomy Systems Limited Subsidiary · United Kingdom
    • Borland GmbH Subsidiary · Germany
    • CARBONITE GMBH Subsidiary · Zürich, Switzerland
    • Chameleon Holdings Ltd. Subsidiary · Israel
    • CloudAlly Ltd. Subsidiary · Israel
    • CM2.COM, Inc. Subsidiary · Washington, United States
    • Covisint Software Services (Shanghai) Co., Ltd. Subsidiary · China
    • debricked AB Subsidiary · Sweden
    • Entco Gatriam Holding B.V. Subsidiary · Netherlands
    • and 155 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

The story

Attachmate Corporation

Attachmate was founded in 1982 by Frank W. Pritt. It focused initially on the IBM terminal emulation market, and became a major technology employer in the Seattle area.

KeaTerm

KEAsystems' KEAterm products were PC software packages that emulated some of Digital Equipment Corporation's VT terminals, and facilitated integrating Windows-based PCs with multiple host applications. These included KEAterm VT340 and VT420 terminal emulators, and KEA X X terminal software).

KEA was acquired by Attachmate.

DCA IRMA

Another acquisition was Digital Communications Associates (DCA), makers of IRMA line of terminal emulators, INFOconnect, Crosstalk communications software, and OpenMind collaborative software). DCA was also known for its 3270 IRMA hardware product (used for SDLC), and ISCA SDLC hardware adapters. They also supported driver downloads.

Extra!

The Attachmate Extra! family of terminal emulator packages was built to include 3270, 5250 and VT100.

From Wikipedia’s article on Attachmate, shared under CC BY-SA 4.0.4

Products and brands

  • software

Listed on Wikidata.1

Subsidiaries and ownership

Parent company

Former owners and parents

From Wikidata.1

Acquisitions

After buying both WRQ, Inc. and Attachmate, who had been long-time competitors in the host emulation business, a group of private equity firms announced in 2005 that the companies would be merged under the new ownership. It was announced that Attachmate founder and CEO Frank Pritt would retire at the same time.

From Wikipedia’s article on Attachmate, shared under CC BY-SA 4.0.4

Timeline

  1. 2014Dissolved Dissolved1
  2. 2014Acquired Acquired by Micro Focus International1
  3. 1981Founded Founded in Bellevue1

Sources

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

  1. 1
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  4. 4