List of mergers and acquisitions by NortonLifeLockW
List of mergers and acquisitions by NortonLifeLock

NortonLifeLock, formerly known as Symantec, is an American computer software company founded on March 1, 1982. It is an international corporation that specializes in selling security and information management software. Gary Hendrix founded the company in 1982 with the help of a National Science Foundation grant. Symantec was originally focused on artificial intelligence-related projects, and Hendrix hired several Stanford University natural language processing researchers as the company's first employees. After the company's initial public offering in 1989, Hendrix left the company in 1991 and moved to Texas. The company has acquired 57 companies, purchased stakes in 2 firms, and divested 26 companies, in which parts of the company are sold to another company. Of the companies that Symantec has acquired, 50 were based in the United States. Symantec has not released the financial details for most of these mergers and acquisitions.

Blue Coat SystemsW
Blue Coat Systems

Blue Coat Systems was a company that provided hardware, software, and services designed for cybersecurity and network management. In 2016, it was acquired by and folded into Symantec.

BrightmailW
Brightmail

Brightmail Inc. was a San Francisco-based technology company focused on anti-spam filtering. Brightmail's system has a three-pronged approach to stopping spam, the Probe Network is a massive number of e-mail addresses established for the sole purpose of receiving spam. The Brightmail Logistics and Operations Center (BLOC) evaluates newly detected spam and issues rules for ISPs. The third approach is the Spam Wall, a filtering engine that identifies and screens out spam based on the updates from the BLOC.

DelrinaW
Delrina

Delrina was an electronic form company in Canada that was acquired by the American software firm Symantec in 1995. The company was best known for WinFax, a software package which enabled computers equipped with fax modems to transmit copies of documents to standalone fax machines or other similarly equipped computers. It also sold PerForm and FormFlow.

Narus (company)W
Narus (company)

Narus Inc. was a software company and vendor of big data analytics for cybersecurity.

PC Tools (company)W
PC Tools (company)

PC Tools, formerly known as WinGuides.com, was a software company acquired by Symantec in 2008; the new owner eventually discontinued the PC Tools name. Company headquarters were in Australia, with offices in Luxembourg, the United States, United Kingdom, Ireland and Ukraine. The company had previously developed and distributed security and optimization software for the Mac OS X and Microsoft Windows platforms.

PGP CorporationW
PGP Corporation

PGP Corporation was a company that sold Pretty Good Privacy computer software. It was founded in 2002, and acquired by Symantec in 2010.

Quarterdeck Office SystemsW
Quarterdeck Office Systems

Quarterdeck Office Systems, later Quarterdeck Corporation, was an American computer software company. It was founded by Therese Myers and Gary Pope in 1981 and incorporated in 1982. Their offices were initially located at 150 Pico Boulevard in Santa Monica, California and later at 13160 Mindanao Way in Marina del Rey, California, as well as a sales and technical support unit located in Clearwater, Florida. In the 1990s, they had a European office in Dublin, Ireland. Their most famous products were the Quarterdeck Expanded Memory Manager, DESQview, CleanSweep, DESQview/X, Quarterdeck Mosaic, Manifest and Partition-It.