Essex boy Judah brought a black belt in jujitsu and experience as a product developer at Ford to the show. It took him as far as week seven before he was given the heave-ho.
He later co-founded Bright Light Innovations, which helps companies develop new ranges.
Series four - Michael Sophocles
The ad salesman made a name for himself when he tried to kosher a chicken by taking it to a halal butcher during a task in the 2008 show. The incident spurred him on to learn more about his Jewish background.
Series six - Jamie Lester, Melissa Cohen, Alex Epstein and Joy Stefanicki
Property developer Lester, a former Ilford Jewish Primary pupil, made it to the semi-final. He has gone on to set up estate agency Haus Properties, with offices in west London.
JFS old girl Cohen made a name for herself with an outspoken character and platinum blonde hair. Now a mum (and a brunette), she runs consulting firm, Melco.
Stefanicki, 31, from Portsmouth, was the second contestant to leave the show, telling the JC at the time that Lord Sugar never got to see her potential. She now works in advertising as an account director. She has also worked on projects with Lester.
Epstein, from Manchester, said Lord Sugar made a mistake when he was fired. The former King David pupil, who spoke at a Young Jewish Care fundraiser about his experience, has gone on to found haircare brand, Concoction.
Series nine - Luisa Zissman
Not Jewish, but linked via her ex-husband, Oliver, she was runner-up last year. Since then, the 27-year-old from St Albans, has joined the executive board of Jewish charity Laniado UK, to raise money for a hospital in Israel.
