Ambient Sound Investments is a Tallinn, Estonia-based family office and private investment vehicle founded in 2003 by four engineers from Skype. It provides investment management and holds minority stakes in ventures through direct investments and fund-of-funds, focusing on private equity and venture capital across incubation, seed, early-stage, growth, and PIPEs, as well as selective investments in real assets. The firm typically pursues minority positions around 25 percent, with larger stakes in incubators, and pursues co-investments and occasional entries into public equity. Its portfolio concentrates on information technology, software, web, social media, and research and development companies, with a geographic focus on the United States, Europe and Asia, including Eastern Europe and countries such as Russia, Lithuania, Denmark, Finland, France, Iceland, Norway, Sweden and the United Kingdom. Investment sizes range roughly from half a million to two million euros, and capital is deployed from personal capital and balance sheet sources. The organization originated to hold a minority Skype stake and now operates as a private investment vehicle.