Almost a third of UK directors think that a strong regional accent is a disadvantage in business.
And, according to the latest survey from spoken communications consultancy The Aziz Corporation, directors of small companies and those in the financial services sector were found most likely to discriminate against regional twangs.
Businessmen from the English regions appear to be at a disadvantage compared to their counterparts from the Home Counties, Scotland, America and Continental Europe.
Individuals with Home Counties or American accents are judged most likely to be successful, according to 43 per cent of respondents, closely followed by those with a Scottish accent (36 per cent) and those with a Continental European accent (33 per cent).
The number of UK directors who believe strong accents can be a hindrance in business was down nine per cent over the past 12 months, but only four per cent think a strong regional accent is an advantage.
The survey also highlights some interesting stereotypes about accents.
Those with American or Scottish accents are considered to be hardworking and reliable by 31 per cent of their British peers. But Scottish accents are more likely than American accents to be identified with honesty and trustworthiness.
Individuals with a West Country accent are considered to be more honest than the average by a quarter of survey respondents, closely followed by those with Welsh and Geordie accents (21 per cent).
Respondents were also more likely to believe that Cockney and Scouse accents convey less-than-average honesty.
Khalid Aziz, chairman of The Aziz Corporation, said the survey highlighted a nationwide obsession with accents and what we think they tell other people about us.
"Although regional accents are more widely accepted in the media, and to a certain degree in business, this survey shows that in the workplace, a distinctive twang may still hinder individuals," said Aziz.
"The key is to avoid using localised vocabulary which others may not recognise. We would advise individuals to consider softening broad accents - not get rid of them."
Cotton seedling freezes to death as Chang'e-4 shuts down for the Moon's 14-day lunar night
Fortnite easily out-earns PUBG, Assassin's Creed Odyssey and Red Dead Redemption 2 in 2018
Meteor showers as a service will be visible for about 100 kilometres in all directions
Saturn's rings only formed in the past 100 million years, suggests analysis of Cassini space probe data
New findings contradict conventional belief that Saturn's rings were formed along with the planet about 4.5 billion years ago