American companies established in 2000

American multinational banking and financial services holding company

American aerospace developer and manufacturer

American video game company

Avaya LLC(), formerly Avaya Inc., is an American multinational technology company headquartered in Morristown, New Jersey, that provides cloud communications and workstream collaboration services. The company's platform includes unified communications and contact center services. In 2019, the company provided services to 220,000 customer locations in 190 countries.

Tripadvisor is an American company that operates online travel agencies, comparison shopping websites, and mobile apps with user-generated content.

American media company based in Burbank, California

American film and TV production company established in 2000

Energizer Holdings, Inc. is an American manufacturer and one of the world's largest manufacturers of batteries, headquartered in Clayton, Missouri. It produces batteries under the Energizer, Ray-O-Vac, Varta, and Eveready brand names and formerly owned several personal care businesses until it separated that side of the business into a new company called Edgewell Personal Care in 2015.

American video game developer

Fortinet, Inc. is an American cybersecurity company headquartered in Sunnyvale, California. It develops and sells security products including firewalls, endpoint security and intrusion detection systems. Fortinet has offices in the US, Canada, and UK.

American lifestyle brand owned by Abercrombie & Fitch Co.

American video game developer

American cargo airline

ArenaNet, LLC is an American video game developer and subsidiary of NCSoft, founded in 2000 by Mike O'Brien, Patrick Wyatt and Jeff Strain and located in Bellevue, Washington. They are most notable as developers of the online role-playing game series Guild Wars.

Psyonix LLC is an American video game developer based in San Diego. It was founded in 2000 by Dave Hagewood with the team of his Internet-focused company WebSite Machines. After canceling its first two projects, Psyonix created VehicleMOD, a mod that adds vehicles to Unreal Tournament 2003. The game's developer, Epic Games, subsequently hired the studio to recreate this gameplay for a game mode in Unreal Tournament 2004. Psyonix subsisted off contract work and released its first original game, Supersonic Acrobatic Rocket-Powered Battle-Cars, in 2008. The game was not as successful as anticipat

American media corporation based in Los Angeles, California

financial company based in Atlanta, Georgia

American film investor, distributor, and publishing company

former wireless service subsidiary of AT&T

American record label

American writer collective

thumb|Spanx Shaping Pantyhose Super Control Sheers top front Spanx, LLC is an American shapewear company founded in 2000 by Sara Blakely in Atlanta, Georgia. The company offers innerwear and outerwear, including activewear, apparel, denim, shapewear, swimwear, intimates, leggings, and hosiery. As of 2021, the company was valued at $1.2 billion and its products are sold in over 50 countries.

Zipcar is an American car-sharing company and a subsidiary of Avis Budget Group. Zipcar gives members access to book cars nearby by the hour or day. Members may have to pay a monthly or annual membership fee in addition to car reservations charges. Gas, maintenance, insurance options, and a dedicated parking spot are included. Zipcar was founded in 2000 by Antje Danielson and Robin Chase.

Cinemaware was a video game developer and publisher. It had released several titles in the 1980s based on various film themes. The company was resurrected in 2000, before being acquired by eGames in 2005.

Avanade () is a global professional services company providing IT consulting and services focused on the Microsoft platform with artificial intelligence, business analytics, cloud, application services, digital transformation, modern workplace, security services, technology and managed services offerings. Headquartered in Seattle, the company has 50,000 employees in 26 countries.

OQO was a U.S. computer hardware company that was notable for manufacture of handheld computers. Its systems possessed the functionality of a tablet PC in a size slightly larger than a personal digital assistant (PDA). According to Guinness World Records, the "OQO" was the smallest full-powered, full-featured personal computer in 2005. The company's first version of subnotebook computer was the OQO model 01. It had been compared with the Ultra Mobile PC platform, although it was introduced before the UMPC took flight. The company was founded in 2000.

video game developing company

US film production company

American media company

American entertainment company

Compete.com was a web traffic analysis service. The company was founded in 2000, and ceased operations in December 2016.

American film studio

American film production company

Houston-based company

American cosmetics company

theatrical and technical live entertainment production division of the Walt Disney Company

American technology company

StubHub is an American ticket resale broker and a primary ticket outlet. It is a subsidiary of StubHub Holdings, which also owns Viagogo.

recording studio in the Ballard neighborhood of Seattle, Washington, United States

Cineverse Corp. (originally Access IT Digital Media, Inc., and later, Cinedigm) is an American entertainment company headquartered in Los Angeles, California. Cineverse’s businesses encompass digital cinema, streaming channels, content marketing, and distribution.

American skateboarding company

American private equity and venture capital firm