"Employers must be clear they have a zero tolerance attitude to sexual harassment and treat any complaint seriously. It's a scandal that so few women feel their bosses are dealing with the issue properly."
Laura Bates, founder of the Everyday Sexism Project, which helped with the report, said: "Many people would like to think that workplace sexual harassment is a thing of the past. In reality, it is alive and well, and having a huge impact on tens of thousands of women's lives.
"These findings reveal the shameful extent of the problem and the reality of the touching, unwanted advances and inappropriate comments women find themselves confronted with while simply trying to do their jobs.
"Employers need to take urgent action to tackle the problem."