Uber Technologies Inc. has fired more than 20 workers as a result of an investigation into claims it has an aggressive, male-dominated workplace that permits sexual harassment and sexism, according to an employee who attended a companywide meeting Tuesday.

The ride-hailing company told its more than 12,000 employees that law firm Perkins Coie LLP investigated 215 claims relating to workplace behavior and that no action was taken on 100 of them, according to this person. The names of those fired weren’t disclosed. Uber declined to comment.

The firings mark the initial fallout from two investigations Uber ordered into its own workplace culture, after a February blog post by former software engineer Susan Fowler Rigetti claimed Uber management had ignored multiple complaints from her and other female workers of sexual harassment and sexism by their managers.

Uber is expected to release in the coming days an executive summary of a report prepared by former U.S. Attorney General Eric Holder, who along with his law firm, Covington & Burling LLP, was hired to help investigate the San Francisco company’s practices and recommend changes. Perkins Coie was retained, in part, to look into Ms. Fowler Rigetti’s claims, and both firms have been interviewing current and former employees in recent weeks.

It is highly unusual for a company to dismiss more than 20 people over claims of sexual harassment, sexism or other workplace matters, according to Rick Rossein, a law professor at City University of New York.