ThirdLove is a lingerie and apparel company that uses data and technology to create better-fitting bras and underwear for women. The company's products are designed using millions of real women's measurements and feedback, and are available in over 80 sizes. ThirdLove was founded in 2013 by Heidi Zak and David Spector. The company has raised over $68 million in funding from investors such as New Enterprise Associates and Sequoia Capital. ThirdLove has been recognized for its innovative approach to lingerie design, and has won several awards, including the 2018 Fast Company Innovation by Design Award.