Alardhi joined Investcorp in 2008 and assumed his current role in 2015. The company recorded assets under management of $53 billion in 2024. In April 2024, it launched its $1 billion platform, Investcorp Golden Horizon, in partnership with the China Investment Corporation, to invest in high-growth companies across the GCC and China. In May 2024, it announced the final closing of its ITP V fund at $570 million in total commitments. Alardhi is also chairman of the Muscat Stock Exchange and chairman of the board of trustees at the College of Banking and Financial Studies.