A fostering service set up for seven to 18-year-olds by the Coram Family has closed after six years.
Fostering New Links was aimed at young people with behavioural problems who would otherwise have been placed in care.
The service was provided by foster carers in their own homes, supported by professionals such as teachers, social workers and psychologists.
In the last two years of the project, 90 per cent of the young people attended a mainstream school or special school.
The project was initially set up through a contract with a local authority, but the Coram Family says it was unable to make it financially viable on a long-term basis.
Chief executive Gillian Pugh said: "We remain convinced that the Fostering New Links practice model is a good one. The outcomes for the young people have been very positive, and it is our intention that elements of the work will be picked up and integrated into both other Coram Family services and the work of other agencies."