Lob is a software company that automates direct mail and address verification. The company was founded in 2013 by Harry Zhang, Leore Avidar, and long-time friend and collaborator, Sahil Diwan. Lob's platform automates the creation, printing, and mailing of letters, postcards, checks, and more. The company's mission is to make the world programmable. Lob has raised over $150 million in funding from investors such as Y Combinator, Polaris Partners, and Floodgate.