Saunier Duval have announced they are pulling out of cycling sponsorship with immediate effect.
Their decision comes after the Saunier Duval-Scott team withdrew from the Tour de France following a positive test for EPO by their star rider, Riccardo Ricco.
Ricco, 24, who won two mountain stages of the Tour, had his contract ended by the Spanish-run team for returning a positive A sample for the Cholet time-trial.
Another Italian and stage winner, Leonardo Piepoli, 36, was also sacked for 'a violation of the team's ethics code'.
The German heating technology firm, part of the Vaillant Group, have sponsored the team since 2004, when it was established as Saunier Duval-Prodir.
Saunier Duval president, Thierry Leroy, had said he felt 'deceived and angry' in the wake of the doping revelations.
On Saturday, Barloworld announced they would leave cycling when the Tour de France has ended.
Their Spanish rider Moises Duenas Nevado tested positive for a similar third-generation form of EPO, but unlike Saunier Duval, the South African team elected to continue in the race.
