It follows a meeting of county councillors this week.
Protestors gathered outside County Hall as councillors arrived to discuss a reduction in funding.
Campaigners are worried that the cuts - which will affect 5 bus routes in Exeter and 18 other rural services travelling to the city - will impact the elderly and disabled most.
Exeter care agency rated 'inadequate' and in special measures
Bosses at Horizon Care insist change
Raw sewage spews into Plymouth suburb estate and woods
Concerns raised for public health and wildlife in Woolwell
Councillor stands under trees to stop chainsaw massacre
Emergency preservation order now in place
Three years jail for charity box thief
And he can't eat in McDonald's for eight years
Spat over whether 'inadequate' children's services are as bad as MP suggests
Exeter's Steve Race believes they are in 'last chance saloon;
