US-based cloud software company Salesforce.com, led by Marc Benioff (pictured), has bought Stypi, a graduate of YCombinator, an incubator programme backed by Salesforce, according to a blog post from the company on Tuesday.
Stypi is an editor which allows various users to make changes to a shared document at the same time, and it launched in August last year.
Salesforce has previously bought Y Combinator start-ups Etacts, a contact-management business, for an undisclosed sum, and Heroku, a Ruby on Rails platform, for $250m.
Salesforce has also taken stakes in at least four of Y Combinator’s graduates, Global Corporate Venturing research found in our February profile.
A Salesforce spokeswoman said: "Y Combinator attracts great entrepreneurs. Although we do not have a formal connection or relationship with Y Combinator, we do follow the startups that come out of the program, and we make small investments in Y Combinator companies as part of our broader investment program."