Silicon Alley Silicon Alley Silicon Alley, centered around the Flatiron district in Manhattan, is an area of high tech industries. The term was coined in the 1990s during the dot-com boom, as a reference to <nowiki>"Silicon Valley", the tech center in California. As the New York tech industries began a revival around 2003, the businesses spread outside of Manhattan making the term 'Silicon Alley'</nowiki> somewhat obsolete. , New York City hosted 300,000 employees in the tech sector. In 2015, New York generated over US$7.3 billion in venture capital investment. High technology startup companies and employment are growing in New York City and
Silicon Valley supports innovation and entrepreneurship. Attempts to create "Silicon Valleys" in environments where disruptive innovation does not go over well have a poor track record. The San Francisco Bay Area has the largest concentration of high-tech companies in the United States, at 387,000 high-tech jobs, of which Silicon Valley accounts for 225,300 high-tech jobs. Silicon Valley has the highest concentration of high-tech workers of any metropolitan area, with 285.9 out of every 1,000 private-sector workers. Silicon Valley has the highest average high-tech salary in the United States at $144,800. Largely a result of the high technology sector, the San Jose-Sunnyvale-Santa Clara,