Police have produced sophisticated facial reconstruction to show what he might look like now at the age of 23.
Jordan, originally from Moston, was just 16 when he was reported missing.
He was last seen on 31 August 2008, after being dropped off around 4.45pm on Tibb Street in Manchester by his aunt.
He is described as white, of medium build, tall with short ginger hair and brown eyes. He was wearing a black and grey jacket, black Nike tracksuit bottoms and black trainers.
Last year, officers received intelligence Jordan may have been seen in the Portsmouth area although there have been no further sightings.
Jordan’s aunt Kimberley Pierce said: “When I dropped Jordan off on Tibb Street, not for one second did I believe it would be the last time I saw him.
“It has been nearly seven years of wondering where he is or what has happened to him and I would ask anyone who has information to contact police as soon as possible.
“Twenty thousand pounds is a lot of money and I hope this will go towards encouraging people to come forward and providing officers with information.”
Greater Manchester Police’s Missing Persons Investigating Officer Julie Potts, said: “Since Jordan initially went missing, we have had serious concerns for his safety.
“He was only 16 when he disappeared and we think it is highly unlikely he has been able to avoid detection during the past few years.
“We know that Jordan knew a number of people who were involved in minor criminality and are working on the theory there may be a link between this and his disappearance.
“Understandably, Jordan’s family have been deeply upset there has been no contact and just want to know where he is. Seven years is a long time but it must seem an eternity to them and they need answers.
“I would urge anyone who may have seen Jordan or know where he may be staying to get in touch.”
Anyone with any information is asked to contact on 0161 856 3570 or the independent charity Crimestoppers, anonymously, on 0800 555 111.
Alternatively anyone with information can contact the charity Missing People on 116 000.
