Lord Sugar has split from 2015 Apprentice winner Joseph Valente after investing £250,000 in his plumbing business.
The Hackney-born businessman announced on Friday he has left ImpraGas, which was jointly owned by the pair, who remain on friendly terms.
Lord Sugar said: “Since winning the Apprentice in 2015 with the prize investment of £250,000, Joseph, along with guidance from myself and my advisers, has transformed ImpraGas into a fast growing gas boiler installation company.
“I’ll still be on hand to offer any help and advice required. I wish Joseph and ImpraGas all the very best for the future and will follow their progress with much affection.”