S'well is a reusable water bottle and insulated products company headquartered in Manhattan, New York.

[8] She started the company after attending a panel, at her five-year Harvard Business School reunion, focused on the global clean water crisis.

[6][8][10] From 2013 to 2014, the company's revenue had grown 400 percent, generating $10 million in sales by the end of the year.

[16] In 2017, the company increased staff at its London headquarters and expanded its retail sales to 65 countries worldwide.

[18] In September 2018, the company partnered with the NYC Mayor's Office of Sustainability and the New York City Department of Education which gave out S’well water bottles to 600 high schools.

Testing the product's heat retention claim, the testers filled the bottle with hot coffee.