Carmen McConnell organised the protest at County Hall in Dorchester, Dorset.
Her seven-year-old daughter is awaiting a placement at a specialist school,
“It’s changed our lives quite dramatically as I have to be at home for her. It’s very much out of our control.
“Most of it boils down to funding – we know the council doesn’t have as much money as it needs, so that links back to the government.”
Speaking at the protest gathering in Oxford, Amy Webb who is currently looking for a place in a specialist secondary school for her daughter, said: “There aren’t enough specialist schools for these children.
“Those that are there, are so, so oversubscribed.”
“Something has got to change – otherwise you’ll end up with a generation of children that are failed and parents that are beyond burnt out.”
Marie Llewellyn at the protest at West Berkshire Council offices in Newbury said there was currently a “dire situation” for Send children and their families.
“All we are faced with is barriers.”
“We’re going to continue to use our voices as parents – we have to make a change for our children and future generations.”
Monday’s campaign follows a rally entitled Fight for Ordinary rally on 15 September at Parliament Square in London, which more than 800 parents, carers and young people attended.