S44 Holdings

S44 Energy is a custom software company that enhances electric vehicle (EV) charging experiences. Founded in 2012, it operates with a distributed team across the United States and Germany, focusing on delivering impactful digital solutions. As part of the S44 group, S44 Energy specializes in custom software for Charge Point Operators (CPOs) and e-Mobility Service Providers (eMSPs). The company offers a variety of services, including the development of customer-facing and back-end software applications. S44 Energy is knowledgeable in Open Charge Point Interface (OCPI) and Open Charge Point Protocol (OCPP) standards, providing advanced solutions for the EV charging sector. They also support fleet electrification with load management solutions and vehicle-to-grid technology. One of their key products is CitrineOS, an open-source Charging Point Management System compliant with OCPP 2.0.1 standards, launched in 2023 to improve the reliability of charging infrastructure.