An external lawyer hired by Partners Group to investigate the case dismissed the complaints in February 2018, concluding that Ms. Mulumba "presumed bias based on her race, gender and national origin" and misheard the comments or took them out of context.
Ms. Mulumba, who joined the firm in 2015, took a two-month break from her job in Switzerland to treat a benign tumor in late 2016, and was never diagnosed with cancer. Ms. Mulumba claims the discrimination against her escalated after her return from medical leave, which was used to mount a case for her dismissal.
"Let's not create a paper trail in case we need to present her an exit proposal 'without prejudice,'" an HR executive wrote in a January 2017 email disclosed in court documents. That executive didn't respond to an email seeking comment.
In August 2017, the firm's HR chief approved a note to the firm's global executive committee, saying, incorrectly and without her knowledge, that Ms. Mulumba had cancer and that her dismissal was planned, court documents show. That note cited her performance before and after her medical leave as "not meeting expectations," in apparent contrast to her earlier performance reviews.
That indicated Partners Group was "prematurely labeling me as a leaver," Ms. Mulumba wrote in court documents.
Ms. Mulumba says she first approached a colleague about her concerns about the racist remarks in confidence shortly before that August email. That colleague denies ever sharing her comments with HR, according to Partners Group's investigation. Ms. Mulumba first formalized her complaints in a letter to the U.S. unit of Partners Group in 2018 before bringing her case to the U.K.
"While branding itself as socially responsible, the firm has spent years fighting the jurisdiction of the U.S. courts and the U.K. tribunal," Ms. Mulumba said in a statement to Bloomberg. "Genuine social responsibility is about accountability."