Mountain Partners

High Performance Battery Technology, based in Bonn, specializes in the research and development of high-tech batteries, focusing on next-generation solid-state designs. Its products are described as using inorganic liquid electrolytes that are non-flammable, deep-discharge resistant, and durable, potentially offering environmental advantages over conventional lithium-ion batteries. The company operates as a subsidiary of a Swiss holding company, reflecting an international corporate structure.

Volders is a service that enables users to manage their personal contracts (e.g., mobile phone, electricity) conveniently. It provides reminders for contract renewals and facilitates termination or amendment via fax, mail, or certified mail.

Sandpiper Digital Payments is a global platform provider of closed-loop digital payments, proximity marketing and loyalty on mobile. It offers mobile commerce solutions to financial institutions, sports and events organizers, publishers and ad networks, retailers and brands. The company focuses on consolidating the European payment landscape through a buy-and-build strategy in digital cashless payments and access control, and its platform combines payment technologies, secure authentication tools and access management to enable cashless transactions, improve security and streamline operations for enterprises, educational institutions and public facilities.