Atomico is a risk capital group. They are entrepreneurs with a global perspective who invest their own capital in passionate entrepreneurs with powerful ideas. Through their experience building Skype, Joost and Kazaa, they understand the value of game-changing business models and have created a worldwide ecosystem to help accelerate the growth of the companies in which they invest.

Battery Ventures invests in technology-driven companies run by exceptional individuals and management teams. For more than 20 years, they have partnered with great entrepreneurs across stages, sectors and geographies. Their mission is to support entrepreneurs as they build extraordinary companies.

Index Ventures is dedicated to working with entrepreneurs who have the drive and ability to build world-class technology companies that can become global players. They invest in the fields of information technology and the life sciences, looking for teams that are committed to solving real problems with novel approaches.

TrialPay is also backed by well-respected individuals with significant experience in payments, advertising and Internet technologies, including Bob Pittman, Ron Conway and several former executives at PayPal.