Police are appealing for help to find Anatoli Nowak who is missing from his home in Burnham-on-Crouch.
Mr Nowak, 65, left his home for work on Tuesday 21 February. He went to work in Barking and was last seen by his employer when he left at 7pm that day.
However Mr Nowak did not return home and has not been seen since.
Mr Nowak is described as white, 6ft tall, with grey hair and glasses. He was last seen wearing a white shirt, black trousers, black shoes and a grey coat. He left work in his vehicle which is a black Jaguar X-Sport with the registration AX55 GFK.
Anyone who knows where he is or has seen him can contact Essex Police on 101.