Tryphosa is currently the CFO of PPC Ltd, a position she has held since August 2011. She was previously the CEO of WIP Capital which is a subsidiary of WIPHOLD. She also served as the CFO of South African Airways (SAA) and prior to that she was requested to join national Treasury as a Chief Director, where she set up a business unit with financial oversight of state-owned entities. While at National Treasury she was instrumental in the listing of Telkom on the JSE and New York Stock Exchange.
She currently serves on the boards of Airports Company of South Africa (CSA) and the Land Bank. She is also the president of the Association of Black Securities and Investment Professionals (ABSIP)