The Phoenix Partnership (Leeds) Ltd (TPP) represents one of the most profitable and entrenched software platforms within the United Kingdom's digital health infrastructure. Operating its proprietary electronic health record (EHR) platform, SystmOne, TPP maintains an entrenched duopoly alongside EMIS Health, together administering the clinical data and consultation workflows of more than 90% of general practices across England. In the financial year ending 31st March 2025, TPP