A man with an English sounding name was offered three times the number of job interviews than an applicant with a Muslim name.
A BBC Inside Out London investigation sent CVs from two candidates, "Adam" and "Mohamed", who had identical skills and experience, in response to 100 job opportunities.
Adam was offered 12 interviews, while Mohamed was offered four.
The BBC reports how the the fake candidates applied for 100 jobs as business managers in the competitive field of advertising sales in London.
After two and a half months, Adam was offered three times more interviews than Mohamed.
The two CVs were also uploaded to four job sites. Adam was contacted by five recruiters, but Mohamed only two.
Prof Tariq Modood from the University of Bristolm told the BBC, "What we've identified very clearly is that the Muslim-sounding person's CV is only likely to get an interview in one out of three cases.
"I thought the response rate would be more like perhaps, one in three, but it's two in three so it's worse than I thought, especially in a city like London.
"It's so diverse, people coming in and out of the city, from different parts of the world, looking for work, a city very hungry for talent. Yes, it's worse than I thought."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here