Family support and counselling service Barnados is pulling out of Bay of Plenty.
Twenty-six permanent and casual staff, mostly in Tauranga and Rotorua, will lose their jobs in September.
The organisation provides services to more than 10,000 people nationwide each year.
Chief executive Murray Edridge says a review shows services Barnados has provided in Bay of Plenty since 1994 are no longer sustainable.
He says another organisation has taken on its home-based early childhood programmes and it is negotiating with an agency to pick up its family support and counselling work.
But Mr Edridge says there is no one to continue a service for parents who have only supervised access to their children.
Child, Youth and Family says it is working with the Ministry of Justice to identify suitable organisations that could take over that service.
It is currently being used by 21 families in Bay of Plenty.
CYF says it hopes to have the issue sorted out by the end of the year.