LinkedIn is an American business- and employment-oriented online service that operates through websites and mobile applications. Launched in, the platform is primarily used for professional networking and professional development, and allows job seekers. LinkedIn, a business-oriented social media website founded in 2002 and headquartered in Mountain View, California. In late 2003, Sequoia Capital led the Series A investment in the company.
In August 2004, LinkedIn reached 1 million users.