37signals is a software development company that offers Basecamp, a project management software, and HEY, an email software. Basecamp provides a saner, calmer, and organized way to manage projects and communicate company-wide, while HEY transforms email into something enjoyable to use. The company was founded in 1999 and is privately held. With a team size of 51-200 employees, 37signals specializes in finishing projects, collaborating with clients, working remotely, and getting it done.