Some 50 health workers, trade unionists and NHS campaigners protested outside Yorkshire Ambulance Trust HQ in Wakefield on Tuesday of last week.
The Trust announced cuts of £46 million. Ambulance technicians would be replaced by drivers with only first aid training.
The trust has also de-recognised Unite.
Another protest is set for the next Trust board meeting on Tuesday September 24, Cutler’s Hall, Church St, Sheffield S1 1HG