BITC has launched their Business Response Network: https://businessresponsecovid.org.uk/
BITC’s support hub enables organisations who are in need of support because of Covid-19 to be matched with a business who is offering to help. They have regional leads ready to process your requests and help match up with the support you need.
This site has just launched, but these are some of the requests they’ve received so far: https://businessresponsecovid.org.uk/asks
This service is only for registered charities, businesses, health and governmental agencies. If you are an individual or unregistered group with a pressing need one of the alternative services listed may be able to help.