The first artist he signed to Allido was rapper Saigon, who later left to sign with Just Blaze's Fort Knox Entertainment.He has signed Rhymefest, most well known for winning the Grammy for co-writing Kanye West's "Jesus Walks." On 2 April 2007, Ronson released a cover of The Smiths' track "Stop Me If You Think You've Heard This One Before" under the title "Stop Me", featuring singer Daniel Merriweather.He soon became known for his diverse, genre-spanning selection.
Living on the Upper West Side of Manhattan, he counted Sean Lennon – son of John Lennon and Yoko Ono – amongst his childhood friends.
Ronson married French actress and singer Joséphine de La Baume, who had previously appeared in the music video for "The Bike Song." They married in Aix-en-Provence, in the South of France, on 3 September 2011.
His third studio album, Record Collection, was released on 27 September 2010, peaking at number two in the UK.
In 2014, Ronson achieved his first UK and US number one single with "Uptown Funk," which featured vocals from Bruno Mars.
Ronson produced "Cold Shoulder" on Adele's first album, 19.