From 1999 to 2000, Zappos earned $1.6 million in gross sales.[1] In 2001, Zappos brought in $8.6 million, a significant increase from the previous year.[9] In 2004, Zappos reached $184 million in gross sales and received a $35 million investment from Sequoia Capital.[9][11] That same year, they moved their headquarters from San Francisco to Henderson, Nevada.[3] Over the next three years, Zappos doubled their annual revenues, hitting $840 million in gross sales.