USL logo as it appeared atop the headquarters building in Summit, New Jersey
Company type
Private
Industry
Software products
Information technology consulting
Founded
November 1989 (1989-11)
Fate
Acquired by Novell June 1993 (1993-06)
Headquarters
Summit, New Jersey
,
United States
Number of locations
3
Key people
Roel Pieper
Michael J. DeFazio
Larry Dooling
Products
Operating systems
transaction monitors
C++ language products
Revenue
$100 million (1991, equivalent to $224 million today)
Number of employees
500 (1991)
Divisions
UNIX System V Software
Open Solutions Software
Unix System Laboratories (USL), sometimes written UNIX System Laboratories to follow relevant trademark guidelines of the time, was an American software laboratory and product development company that existed from 1989 through 1993. At first wholly, and then majority, owned by AT&T, it was responsible for the development and maintenance of one of the main branches of the Unix operating system, the UNIX System V Release 4 source code product. Through Univel, a partnership with Novell, it was also responsible for the development and production of the UnixWare packaged operating system for Intel architecture. In addition it developed Tuxedo, a transaction processing monitor, and was responsible for certain products related to the C++ programming language. USL was based in Summit, New Jersey, and its CEOs were Larry Dooling followed by Roel Pieper.
Created from earlier AT&T entities, USL was, as industry writer Christopher Negus has observed, the culmination of AT&T's long involvement in Unix, "a jewel that couldn't quite find a home or a way to make a profit."[1] USL was sold to Novell in 1993.
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