His decision to leave was announced shortly before the charity’s annual general meeting, which will take place on 24 June.
A statement released by the RSPCA said: “After four years with the Society and over a year as Chief Executive of the RSPCA, it is with regret that we announce that Jeremy has decided to move on to pursue other business opportunities. Jeremy has been an asset to the team and has contributed to the continued success of the RSPCA. I am sure you will all join us in wishing him the very best for the future.
“The RSPCA is pleased to announce that it has appointed its Chief Operating Officer, Michael Ward, as interim Chief Executive Officer with immediate effect.”
Michael Ward added: “I am very honoured to be asked to be interim chief executive of the RSPCA. The Society has made great strides in recent years. We have a new five year strategy which sets out how we are going to prevent cruelty and create the conditions for improved animal welfare, whilst continuing to modernise our organisation.
“My energy will be devoted towards us progressing our enduring mission to protect animals, prevent cruelty and alleviate suffering”.