The theft happened at Ravenswood Village in Nine Mile Ride last Saturday.
Jane Phillips, volunteer co-ordinator at Ravenswood, said: "Horse-riding for people with disabilities is very therapeutic."
The burglars broke in between 9.30pm and 10.50pm and took five saddles, four bridles, a driving harness and tools.
Anyone with information should call Bracknell police on (01344) 823456.
Jane Phillips, volunteer co-ordinator at Ravenswood, said: "Obviously everyone here is devastated by what happened.
"Around 90 people use the horse-riding facilities here in a week, including people with disabilities from other homes .
"Horse-riding for people with disabilities is so valuable and very therapeutic. I hope we can get things up and running again as soon as possible."