The growing fast-casual company is hoping to raise $200 million in a private round of investment. : Sweetgreen, a fast-casual salad chain, is hoping to join the recent herd of mostly tech-focused startups that have raised big money in private rounds at valuations of $1 billion or more. The company is nearing a $200 million investment, led by Fidelity Investments, that would value it above $1 billion, CNBC reported Friday. Founded in Washington, DC, in 2007, Sweetgreen relocated its headquarters to Los Angeles in 2016, while expanding to nearly 90 restaurants from California to New York.