This thesis addresses the challenge of financial sustainability for Sportera, a Czech digital platform mapping over 700 publicly accessible sports venues that provides its core service free of charge. The theoretical section applies multi-sided platform economics and SaaS metrics to establish a cross-subsidization framework under which institutional clients generate revenue while the public-facing layer remains free. The analytical section draws on a structured questionnaire with ten Czech school representatives, a PESTLE analysis with particular attention to the 2025 amendment to the Czech Public Procurement Act, and Porter’s Five Forces applied to the school facility reservation market, supplemented by direct engagement with Brno city administration. The primary research confirmed that all surveyed schools manage reservations manually, that automatic payment processing is the universal priority feature, and that schools prefer subscription pricing despite citing cost as a barrier, indicating that predictability matters more than cost minimisation. Based on these findings, the thesis proposes a two-stream monetisation model: a commission-based B2B reservation system for school sports facilities deployed through a partnership with STAREZ-SPORT a.s., and a B2G data services subscription with the City of Brno providing sports infrastructure analytics. The financial model demonstrates that annual infrastructure costs of CZK 5,000 are covered from the first month of the municipal contract, with development costs fully financed by the institutional partnership.