John Kosturos

John Kosturos is an accomplished executive with extensive experience in data management and sales. Currently serving as the Chief Executive Officer of SpringDB since January 2018, John has led initiatives to support sustainable growth through data-driven transformation. In addition to this role, John is an Advisor at 5x5 and a Limited Partner at GTMfund, focusing on the development of B2B SaaS startups and data co-op ecosystems. Previously, John held senior leadership positions at ZoomInfo, including Head of Enterprise Sales and SVP of Global Partnerships, as well as Chief Revenue Officer and Co-Founder of RingLead, where significant contributions were made to the data automation landscape. John's entrepreneurial background includes founding Cloud Chiro and co-founding Caliber Technologies. John received a BS in Accounting from the University of Nevada, Reno.