In an impassioned article which he has sent around the country, he wrote: "With all the Government and community money that is available, it is amazing how little of it is actually used to stop violence.
"The money is wasted on financial and organisational systems, paying people to talk about it and getting them to run in ever widening circles creating a semblance of activity.
"Very little actually seeps down to feed the work of changing perpetrators' lives."
He said he and his wife, Liz, had been working unpaid for the past six months so they could keep paying their part-time administrator and trainee group facilitators.
Their main income now comes from a consulting business on workplace violence and bullying. They also charge fees for their voluntary domestic violence clients of $30 for a group session and $60 for an individual session, but the fees often went unpaid.
He said two rival agencies, Relationship Services and Family Focus Rotorua, had entered the field in the city in the past year. "That's been part of the problem."
National Network of Stopping Violence Services manager Brian Gardner said the Olsens' agency was not a member of his network and he did not know of any other agency facing similar problems.