Basecamp is an American web software company based in Chicago, Illinois. The firm was co‑founded in 1999 by Jason Fried, Carlos Segura, and Ernest Kim as a web design company called 37signals.Since mid‑2004, the company’s focus has shifted from web design to web application development. Its first commercial application was Basecamp, followed by Backpack, Campfire, and Highrise. The open source web application framework Ruby on Rails was initially created for internal use at 37signals, before being publicly released in 2004.In February 2014, the company adopted a new strategy, focusing entirely on its flagship product, the software package also named Basecamp, and renaming the company from 37signals to Basecamp. Jason Fried and David Heinemeier Hansson have published several books under the 37signals name.