"I hope that there may be some generous people in the community who would like to help them out."
Diabetes Wanganui branch chairwoman Linda Carter said the burglary came in the middle of Diabetes Awareness Month when the organisation was focused on fundraising.
"It's frustrating and extremely upsetting," Carter said.
"We're in the middle of our awareness month and have been running a major raffle at Trafalgar Square.
"They have broken into filing cabinets and stolen a laptop, a sales cash tin, petty cash, a hard drive and taken our donations box.
"We are all community organisations. We have to fundraise for our money."
Items taken from Balance Whanganui included two laptops, a projector and computer and a karaoke machine, while cash and keys were stolen from MS Wanganui.
Rickey said not all of the organisations were insured.