Former armed forces minister Adam Ingram and former sports minister Richard Caborn were interviewed by an undercover reporter posing as a company executive wanting to hire MPs for lobbying work.
However, Mr Ingram and Mr Caborn stressed they would not make themselves available for work until after the election when they are both standing down as MPs.
The latest “sting” follows the suspension from the Parliamentary Labour Party of three former Cabinet ministers over allegations they were prepared to take cash to influence government policy.
Geoff Hoon, Stephen Byers and Patricia Hewitt were filmed by Dispatches discussing the possibility of working for what they thought was a US lobby firm. Labour backbencher Margaret Moran, who also featured in the programme, was also suspended.