The centres, which provide support and treatment for people with learning difficulties, have folded due to financial issues.

The number of job losses has not yet been confirmed, although it is expected to affect a total of 50 staff at the Kenilworth branch.

Dore was set up in 2000 by Hampton Lucy businessman Wynford Dore who had been inspired by his severely dyslexic daughter, Susie.

The multi-million pound businessman thought of the idea after Susie tried to take her own life after her diagnosis.

One in six people have the condition and Mr Dore, working with professors and eminent researchers around the globe, funded a medical team to come up with a cure for dyslexia and other learning difficulties.

It claimed to have helped thousands of people worldwide to cope with such difficulties and in January 2001, DDAT, as it was then known, which stands for Dyslexia, Dyspraxia and Attention Deficit Treatment, carried out the first ever mass screening of children for dyslexia at a Balsall Common primary school.

The screening was followed by a Tonight With Trevor MacDonald documentary about DDAT.

Within minutes of the programme ending, call centres were receiving 70,000 telephone calls an hour with people trying to find out more about the treatment.

Over the last three years his organisation has successfully treated more than 10,000 people in the UK and helped patients in America, Australia and Hong Kong.

As well as Kenilworth, it had centres in Bromley, Wembley, Bedford, Belfast, Cardiff, Edinburgh, Holborn, Kingston-upon-Thames, Langport in Somerset, Manchester, Sheffield and Southampton.

In a statement on the website, the charity said: "We are determined to find a way for every client who is on the program to have their treatment completed.

"We are presently exploring alternative arrangements to ensure every client is cared for."

The employees who worked at the site near to the Jet Garage included medical consultants, IT support workers and advisers.

Advice for people currently enrolled on a Dore course, which cost up to £2,500, is available at:

www.dore.co.uk

Mr Dore was unavailable for comment when the Weekly News contacted the business this week.