* Silicon Docks: Dublin, Ireland. Contains the European headquarters of companies like Facebook, Twitter, Google, LinkedIn, and many others.
* Silicon Islands: Patras with past and present companies like Atmel, Samsung, Citrix, Dialog Semiconductor, Think Silicon and Intel
Israel has the second-largest number of startup companies in the world after the United States, and the third-largest number of NASDAQ-listed companies after the U.S. and China. Intel and Microsoft built their first overseas research and development facilities in Israel, and other high-tech multi-national corporations, such as IBM, Google, Apple, Hewlett-Packard, Cisco Systems, Facebook and Motorola have opened research and development centres in the country. In 2007, American investor Warren Buffett's holding company Berkshire Hathaway bought an Israeli company, Iscar, its first acquisition outside the United States, for $4 billion.
Facebook joined Alliance for Affordable Internet (A4AI) in October, as it launched. The A4AI is a coalition of public and private organizations that includes Google, Intel and Microsoft. Led by Sir Tim Berners-Lee, the A4AI seeks to make Internet access more affordable to ease access in the developing world. On October 13, Facebook acquired Onavo, an Israeli mobile web analytics company. Standard & Poor's added Facebook to its S&P 500 index on December 21.
In February 2015, Apple opened their new 180,000-square-foot headquarters in Herzliya, Israel, designed to accommodate approximately 800 employees. This is Apple's third office located within Israel; the first, also in Herzliya, was obtained as part of the Anobit acquisition, and the other is a research center in Haifa.