Irish companies established in 2000

Boulder Media Limited is an Irish animation studio founded by filmmaker Robert Cullen in 2000. It is currently a wholly owned subsidiary of Australian media company Princess Pictures, which purchased the company in 2022 from its previous owner, Hasbro.

Realex Payments was a European payment service provider with offices in Dublin and London. The company provided a broad range of payment gateway services and processed transactions in excess of €35 billion per annum on behalf of more than 14,000 clients including Virgin Atlantic, Vodafone Ireland, the AA, AXA Insurance, Paddy Power and Aer Lingus.

Steorn Ltd was a small, private technology development company based in Dublin, Ireland. In August 2006, it announced that it had developed a technology to provide "free, clean, and constant energy" via an apparent perpetual motion machine, something which is contrary to the law of conservation of energy, a fundamental principle of physics.

Celtrak Ltd. is an Irish IT and electronic engineering company based in Galway which designs, manufactures, and provides operations management services for industry and public authorities across Europe, North America, and the Middle East.

Corvil is a network data analytics company based in Dublin, Ireland. It helps businesses make sense of machine data sources and protect performance, security, and transparency of business and infrastructure applications. As of May 2017, prominent financial institutions, such as the New York Stock Exchange, London Stock Exchange, Moscow Stock Exchange, NASDAQ, Nomura, Thomson Reuters, and Commerzbank use Corvil’s services.

Bluestone Group is a financial services and technology business with offices in the UK and Ireland.

Chorus, officially Chorus Communication Limited, was a communications provider in Ireland offering internet, television and telephone services. It was owned by Liberty Global Europe and ultimately controlled by John C. Malone's Liberty Media.