The NCVO plans to unveil its updated deal at its conference for membership organisations on 22 October. The invitation to the launch states that new benefits of the package include "regular events for CEOs and regular updates to CEOs".
Stephen Bubb, leader of the chief executives' umbrella body Acevo, said that he had been aware that the NCVO was canvassing views on services for chief executives, but had not received a response to a letter to NCVO chief executive Stuart Etherington enquiring about it.
NCVO press officer James Georgalakis said that the NCVO had decided to create the new services after an online consultation with both members and non-members. Of the 300 organisations that responded, 176 expressed an interest in a service specifically for the chiefs of member organisations.
But he denied the group would duplicate or compete with Acevo.
"Our service will not be anything like on the same scale that Acevo operates," he said. "We are not rejigging our whole organisation for chief executives.
We already work closely with Acevo on issues like leadership - in fact there is more partnership between us than people realise. We are not trying to compete with Acevo, we just think that there should be one small part of our service that is tailored to CEOs."
Georgalakis said the service would comprise regular events for CEOs, which it already provides nationally, and updates on key issues as they happen. He had told Third Sector initially that the new services constituted a special interest group for chief executives, but later amended this.
Bubb initially told Third Sector: "If there are issues that the NCVO feels its members' chief executives should know about, then the sensible thing to do would be to talk to us and work with us in a collaborative way."
However, he later said Etherington had called him to say no special interest group was planned "and I accept his assurance".
News of the services comes in the same week that the NCVO launched its Collaborative Working Unit, which aims to help charities work together and avoid duplication.
At the launch, Etherington said: "Voluntary organisations are always looking for ways to save time and money and improve their efficiency. Collaborative working can be a way of doing this by combining the expertise, services and resources of two or more organisations."