Kate McKenzie says she will leave Chorus at the end of the year after three years as CEO and managing director. She says she doesn't plan to take another executive role and will return to her home in Australia.

Chorus chairman Patrick Strange says the process to find a successor has already started and the board will consider internal and external candidates.

McKenzie was appointed at Chorus in December 2016 replacing Mark Ratcliffe.

In a media statement McKenzie says she is most proud of the culture change at Chorus under her leadership. She also says the company is now more innovative and customer focused.

During her time at the company Chorus went through a major transformation. This improved efficiency and gave a better customer experience.

Today, nearly three-quarters of fibre installations are completed in a single technician visit. This avoids the need for a separate scoping visit and reduces the effort required from customers to get a connection.

Customer satisfaction has increased and Chorus technicians are often rated as the best part of the fibre ordering and installation experience.