37Signals

37signals.gifSimple online tools for everyday tasks aimed at smaller, agile businesses. Mainly focused on project management and collaboration tools. They also publish a popular blog and have written a book detailing their company’s philosophy. Based in Chicago with several other team members spread out around the country. Team members have been instrumental in the development of the widely popular Ruby on Rails framework.

People: Jason Fried, David Heinemeier Hansson
Funding: Founders
Status: Privately Held
Investors: Jeff Bezos of Amazon.com owns a small late-stage stake
Website: http://www.37signals.com
Blog: http://www.37signals.com/svn
Location: Chicago - West Loop