Insurance company, MGM Advantage, estimates that there are two million fewer people in final salary schemes than there were 14 years ago.
Recent research has identified another 55 companies who said they planned to close their final salary pension schemes for existing members some time in the next five years.
When final salary scheems are closed, staff are then usually offered a defined-contribution scheme, where the contributions are invested and the eventual pot of money is used to buy an annual pension when the employee retires.
Employers typically contribute far less to their replacement schemes than to the final salary. Employers typically pay an average of 6.5% of salaries to defined-contribution schemes, much less than the 15.6% typically paid into final salary schemes.