Self-styled business psychologist David Taylor asked shocked employees to boost team spirit by baring all just for just one day.
Amazingly, they went ahead with the daring Naked Friday idea - and reckon it HAS improved their firm's fortunes.
David was called in to help ailing design and marketing company onebestway, in Newcastle upon Tyne, after they were forced into six redundancies at the start of the credit crunch.
In a move reminiscent of barmy boss David Brent on cult TV show The Office, David reasoned that, by stripping off their clothes, staff could also strip away inhibitions and talk to each other more openly and honestly.
He says: "Inviting an organisation to go naked is the most extreme technique I've used.
"It may seem weird but it works. It's the ultimate expression of trust in yourself and each other."
Despite some initial reluctance, nearly all the staff went totally starkers - except for one man, who wore a posing pouch, and one of two female workers, who kept on black underwear.
Bubbly front-of-house manager Sam Jackson, 23, was the only lass to go fully naked.
She says: "It was brilliant. Now that we've seen each other naked, there are no barriers.
"We weren't put under pressure. If we wanted to come in clothed or in our underwear, we could. But I love my body and wasn't ashamed.
"We're all beautiful, whether we've got big bodies or small ones."
During a week-long lead-up to Naked Friday, the employees were given a number of tasks to break down nerves.
First they were asked to PHOTOCOPY a part of their body - and while Sam chose her boobs, shyer colleagues opted for hands or feet.
Then they SKETCHED a nude model, while asking her how she felt about her body.
Finally they were asked to strip down to their birthday suits - but only if they were happy to.
Sam, who suffers from cerebral palsy, said: "It took a week of David being in the office for us to build up courage.
"The first few steps were very nerve-racking but, once I got to my desk and got used to it, I felt totally comfortable.
"There was a point where I thought, 'I don't want to get my clothes on.'
"It was emotional but we found we were much more able to talk to each other honestly - and have been since.
"The company has improved massively."
Managing Director Mike Owen, 40, adds: "We're either brave or mad. But I did tell everyone they didn't have to do it - only if it felt right.
"As a creative company, we persuade our clients to be brave, and this was about taking on some of the braveness ourselves."
The experiment in April was filmed for a one-off TV show, Naked Office, to be screened on July 9 on cable channel Virgin 1.
And since filming, Mike says his firm is thriving, having taken on two new designers.
He says: "I recommend anyone to do what we did. It's not a sexual thing. If you do anything scary as a company, it encourages bonding.
"We have been so much closer since, professionally and personally. It's given us that boost I wanted."