The UK's biggest firms have pumped £13bn into their defined benefit pension schemes in the last 12 months, research shows.
Ten FTSE100 companies have total disclosed pension liabilities greater than their equity market value, Pension Capital Strategies research shows.
The pension scheme of nearly one-in-10 FTSE100 companies represents a "material risk" to its business, Pension Capital Strategies research reveals.
The funding position for private sector defined benefit schemes is £95bn worse off than this time last year, according to Pension Capital Strategies.
Private sector defined benefit pension schemes are 85% funded, Pension Capital Strategies says.
FTSE100 pension schemes racked up combined deficits of £72bn last year as economic turmoil sliced asset values.
UK - Defined benefit schemes experienced an increase of more than £170bn (US$275.2bn) in total deficits in 2009, marking the worst year on record, Pension Capital Strategies said.