There are 2 main sources of extra funding for pre-school settings. If eligible then they can claim both.
SEN Inclusion funding -this is available for eligible children from age 2
If your childs pre school setting (nurseries and childminders) think they need to access some additional support for your child they maybe able to access the SEN Inclusion fund
Disability access fund
If your child is aged 3-4 and receives DLA then pre-school settings (nurseries and childminders) can apply for funding to support their needs.
How to access the disability access fund can be found here