eFitness S.A. is a Polish company specializing in providing comprehensive Software as a Service (SaaS) solutions for fitness clubs, fitness chains, training studios and sports facilities. Established in 2010, the company has become a leading provider of fitness management software in Poland and has expanded its presence to over 10 European countries.

The eFitness system offers a wide range of functionalities, including customer relationship management (CRM), financial and sales analytics, automated access control, and a mobile application for club members. These features enable fitness club owners and staff to efficiently manage client databases, payments, memberships, marketing, and administrative tasks. The software also includes modules for financial accounting, cash register operations, and analytics. As of the end of 2024, the eFitness system had over 887,000 users, facilitated more than 12 million class reservations, and supported over 24 million club visits. Additionally, the eFitness App had over 120,000 users by the end of 2024.

eFitness places a strong emphasis on data security, developing its software in compliance with European Union data protection regulations. The company operates based on the Microsoft Azure environment, implementing technical and organizational measures at a banking level to ensure the confidentiality and security of client data. The company's mission is to empower fitness club owners and staff in achieving their business goals by providing solutions that enhance the training experience for their clients.

eFitness continues to grow, offering its services in countries such as the Czech Republic, Slovakia, Norway, Greece, Bulgaria, and Iceland.