String Ventures | 300 followers on LinkedIn. A New Breed of Venture Capital: Technology Holding Studio Connecting Turkey to Silicon Valley String Ventures (SV) is founded in 2013 by Can Saraçoğlu and Emrah Yalaz. SV operates in Istanbul and San Francisco. Philosophy: We follow Peter Drucker’s principles; (a.) that business has only two basic functions: innovation and marketing, and (b.) entrepreneur’s purpose is to create a customer.