Richard Antwi, who helped launch the careers of Tinie Tempah and Wretch 32, died of natural causes, a coroner has said.
The 38-year-old entertainment lawyer, who studied at Oxford University, is credited with playing an important role in the successful music careers of British stars Wretch 32, Yasmin, and Tinie Tempah, among others.
Antwi died on 11 February, 2016 at 11.15pm due to sudden adult death syndrome, a spokesperson for North London coroner's court confirmed to BuzzFeed News.
The popular industry figure, who grew up in Wembley, northwest London, also spent time as a parliamentary researcher for Paul Boateng, now a Labour peer.
Colleagues described Antwi as a music lover who was always happy to act as a mentor to those trying to break into the industry.
He set up the record label Levels with his close friend BBC 1xtra DJ Twin B. Wretch 32's Black and White album was its first release.
UK rapper Wretch 32 shared a photograph of Antwi on 22 March, which would have been his 39th birthday.
Songwriter Daley shared a photo with the caption: "I miss you beyond words."
Mr Hudson, who had a hit with Kanye West, said Antwi changed his life and called him "a star behind the scenes".
Magician Dynamo said it "was an honour to work with him".
English singer Labrinth described him as "one of the good guys".
Estelle said Antwi was a "good person" and "a warrior for many UK artists".
Rapper Lethal Bizzle said: "Thank u for everything."
Others said they had "lost a legend".
A good friend of Antwi said that he was "intelligent", and had "a smile capable of lighting up the chilliest room".
Kwame Kwaten, a musician and music producer told BuzzFeed News that he cried when he heard the news of Antwi's death.
"I couldn't breathe, I felt like I had been winded," he said. "I just wish I had more time with him."
Jasmine Dotiwala, executive editor of community channel London360 told BuzzFeed News that Antwi was "a rare force in the arts and culture world".
"He quietly, under the radar, helped launch careers, guide and inspire up and coming new talent and always had a smile and time for everyone," she said.
"From motivational speaking to brand building, he was a very loved and respected British music industry player and key influencer, and his passing as left many of us shocked and saddened."