Billy Boyce was named after Moshoood Abiola Akanbi's father Billy. The fashion house is described as Mayfair style fused with Camden street culture on its official website.
Tributes have been paid to Middlesex University law graduate Akanbi on social networking websites.
Aries Lachey left a tribute on the Billy Boyce official Facebook page:"R.I.P Shaun you were always very sweet to me. May god bless your soul. Such a shame you were taken so early."
Bow tie company Sulphurgenic tweeted:
So sad to hear about the passing of Billy Boyce Founder, Shaun Akanbi. R.I.P from everyone at Sulphurgenic xx
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Before the final declaration on Friday, the Conservative candidate looked set to lose the City Hall race to Labour's Sadiq Khan.
The Tooting MP has been the frontrunner in the counting process ahead of Tory challenger Zac Goldsmith.
It's not just London where elections have been taking place today. There were council elections taking place across the home counties.