S4S Ventures was named a Leader in the 2026 Magic Quadrant for Global Digital Marketing Agencies by Gartner.

S4S Ventures is a venture capital firm focused on companies which capture opportunities presented by the next wave of digital transformation of the Marketing and Advertising sector, primarily at early funding stages. The firm invests in companies across five principal areas: Martech, Adtech, Data Technology, Creative Technology, and Emerging Digital Media/Content. S4S is particularly interested in supporting companies providing solutions for: (a) acceleration of programmatic advertising across Connected TV, gaming and digital audio ecosystems, (b) data warehousing, ingestion and analysis for the purposes of identity resolution, (c) transformation of content development and underlying workflows, by leveraging cloud computing and artificial intelligence infrastructure, (d) monetization of metaverse opportunities, through development of software tools to facilitate/enable brand and creator participation, and (e) emerging digital media capturing the attention of Generation Z. S4S is led by Sanja Partalo, a highly experienced digital industry specialist and investor who was formerly Global Head of Strategic Development and Partnerships at WPP. S4Capital, the tech-led, new age/new era digital advertising and marketing services company established by Sir Martin Sorrell, and Stanhope Capital Group, the global investment firm with $30 billion under management founded by Daniel Pinto, as founders of the fund will act as part of the General Partner. Sanja Partalo, Daniel Pinto and Sir Martin Sorrell sit on S4S's investment committee. S4S's portfolio companies benefit from unique value add - the support of the S4Capital network, with over 7,500 people operating from 33 countries, and from Stanhope’s established investment expertise and track record in both private and public markets. The Fund invests globally, but with an emphasis on the US, Europe and the Middle-East.