In 2024, KSI made the "UK's Richest Gamers" list with an estimated ÂŁ50M. Â
Even more recently, in 2025, the Watford Observer (a local paper from KSI's hometown) claimed he was worth ÂŁ81M. Â
He is probably worth around ÂŁ70M ($95M), mainly driven by his co-founding of Prime energy drink.Â
KSI's net worth is likely between $90,000,000.00 and $110,000,000.00 USD, based on the two most recent estimates from UK publications.
The Times put the figure at ÂŁ50M ($70,000,000.00 USD) in 2024, while the Watford Observer estimated ÂŁ81M ($110,000,000.00 USD) more recently.
The higher figure is probably closer to the truth. It is more recent and accounts for Prime energy drink earnings, KSI's largest single revenue stream.
Who Is KSI?
KSI, born Olajide Olatunji, started out making FIFA commentary videos and vlogs as a teenager. He became one of the biggest names on YouTube in the UK within a few years.
His profile grew significantly in the mid-2010s as a central member of the Sidemen, a group known for challenge and lifestyle videos with a large international following.
KSI has expanded well beyond YouTube, building a boxing career and fighting Logan Paul twice. His real wealth, though, comes from a business he started with Paul in 2022.
Prime energy drink co-launched that year and grew fast. Prime passed $1,200,000,000.00 in sales in 2023, and KSI's exact equity stake has never been disclosed publicly.
Source
Estimated Monthly Income
Prime (Energy Drink)
$2,000,000.00–$4,000,000.00
YouTube
$250,000.00–$400,000.00
Live Events (Music and Boxing)
$200,000.00–$300,000.00
Total Estimated Monthly Income
$2,450,000.00–$4,700,000.00
Prime Energy Drink
KSI and Logan Paul co-founded Prime in early 2022, and the brand sold out across major retailers within weeks of launch. By 2023 it had passed $1,200,000,000.00 in annual sales.
Growth slowed in 2024, but Prime is now an established global brand. It sits behind Red Bull and Monster in the energy drink category, with ongoing distribution across dozens of markets.
YouTube
The Daily Mail reported KSI earned around $4,500,000.00 annually from YouTube in 2023, or roughly $375,000.00 per month. That figure has likely declined since, as upload frequency has dropped.
His main channel sits at around 16 million subscribers and his music channel at around 25 million. Both have plateaued as his attention has shifted to Prime, boxing, and live events.
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Live Events (Music and Boxing)
KSI's boxing matches against Logan Paul and FaZe Temperrr, along with music tours and festival appearances, have generated substantial one-off paydays. Boxing activity has wound down, but live music remains a regular revenue stream.
Live events pay less frequently than YouTube or Prime, but each appearance adds meaningfully to his overall earnings. Festival slots and headline shows typically command fees well above his monthly YouTube income.
