Twitter’s vice president of operations has taken fifth place in the Power 500. Mazen Rawashdeh, who oversees the company’s engineering division, was the second highest new entry.
Somali-born Olympic superstar Mo Farah is the highest new entry is this year’s Power 500, taking third slot.
Saudi Arabia’s Prince Alwaleed has topped the Arabian Business Power 500 for the ninth consecutive year.
The Kingdom Holding chairman took pole position in the Arabian Business annual countdown of the world’s most influential Arabs – just ahead of Emirates Airline chairman Sheikh Ahmed.
Emaar boss Mohamed Alabbar was fourth.
The top ten featured five new entries, with heart surgeon Daoud Hanania in eighth place, with Soros fund boss Abbas Zuwaiter at number ten.
The 2013 list featured a record 155 new entries, and also a record 118 women – the highest ranked being 12th place Sheikha Lubna.
The UAE accounted for most places on the list with 102 people based in the country, though ranked by origin, Saudi Arabia came top with 84 entries.
Banking and Finance dominated the list with 93 entries, followed by Culture & Society accounting for 73 entries.
See pictures of the world's most powerful Arabs here.
Ed Atwood, Editor of Arabian Business, said: “Once again we have produced what we believe to be the most comprehensive guide ever to Arab influence. We have Arabs living from a record 36 different countries making this year’s list, from all walks of life. This list is a celebration of the great work and contribution of Arabs all over the globe.”