Alhumaid and Aljassim established GrintaHub, a fan-to-fan ticketing exchange and resale platform, in 2021. It served over a million clients as of August 2024. The Saudi-based company has sold two million tickets. GrintaHub has closed an undisclosed funding round from eight angel investors. It previously signed an official resale partnership for Formula 1 tickets in Saudi Arabia and numerous entertainment events and served as an official sponsor of the Jeddah Season. The duo previously cofounded a sports marketing company Cfcsaudi, which they exited later.