SCO Group
defunct American software company
The SCO Group (often referred to SCO and later called The TSG Group) was an American software company in existence from 2002 to 2012. It became known for owning Unix operating system assets that had belonged to the Santa Cruz Operation (the original SCO), including the UnixWare and OpenServer technologies. Under CEO Darl McBride, it pursued a series of high-profile legal battles known as the SCO–Linux controversies.
The SCO Group began in 2002 with a renaming of Caldera International, accompanied by McBride becoming CEO and a major change in business strategy and direction. The SCO brand was re-emphasized, and new releases of UnixWare and OpenServer came out. The company also attempted some initiatives in the e-commerce space with the SCOBiz and SCOx programs. In 2003, the SCO Group claimed that the increasingly popular free Linux operating system contained substantial amounts of Unix code that IBM had improperly put there. The SCOsource division was created to monetize the company's intellectual property by selling Unix license rights to use Linux. The SCO v. IBM lawsuit was filed, asking for billion-dollar damages and setting off one of the top technology battles in the history of the industry.
Begin with the source’s own compact description: “SCO Group” is defunct American software company. The dossier treats that line as a proposition to test through Group, defunct and American, not as a finished interpretation.
Why this record matters
The phrase “defunct American software company” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Jun 26, 2026. The linked authority identifier is Q8824673. 2 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2002, 2012 and 2003.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
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Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “SCO Group”, its source revision and the description used here.
- Expand the search: follow SCO Group primary sources, SCO Group archive and Group research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “SCO Group” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.