Few modern celebrities can match the rise of Olajide Olayinka Williams Olatunji, better known as KSI. From a small gaming YouTube career channel to boxing in sold-out arenas, launching chart-topping music, and co-founding one of the world’s largest drink brands, KSI has built a fortune that spans multiple industries.
KSI Net Worth in 2025
As of 2025, KSI’s net worth is estimated at around $100 million. His wealth comes from multiple sources, including YouTube ad revenue from his career, boxing purses, sponsorships, music, and business ventures such as Prime Hydration.
But his story is about more than numbers. It’s about how a teenager who uploaded FIFA clips became a global entrepreneur.
The Early YouTube Years
KSI’s journey began in 2008 when he created his YouTube channel. He started with FIFA gameplay videos, which quickly attracted fans thanks to his humour and energy.
- By 2013, he had already become one of the largest gaming creators in the UK.
- His personality, catchphrases, and comedic skits helped him stand out in a crowded space.
This early success laid the foundation for his future fortune. His channel attracted millions of views each month, generating consistent ad revenue and securing sponsorship deals.
Boxing Career and Mega Fights
Embed from Getty ImagesKSI’s biggest leap came when he stepped into the boxing ring.
Amateur Start
- In 2018, KSI fought fellow YouTuber Joe Weller, winning by TKO.
- That same year, he faced Logan Paul in what became one of the most-watched internet events ever.
Professional Debut
- Their 2019 rematch in Los Angeles was sanctioned as a pro fight.
- KSI won by split decision, instantly gaining mainstream attention.
High-Paid Matches
KSI’s boxing journey expanded with fights against other influencers, including Jake Paul rumours and Tommy Fury bouts. His matches sold millions of pay-per-view tickets and generated seven-figure payouts.
Don’t Miss: Jake Paul Net Worth
For context, KSI reportedly earned over $3 million from his fight with Logan Paul alone. With sponsorships and PPV cuts, boxing has become one of his most lucrative income streams.
Music Career and Chart Success
KSI also turned to music.
- In 2020, he released his debut album, Dissimulation, which peaked at #2 on the UK Albums Chart.
- His second album, All Over The Place (2021), debuted at #1.
- Collaborations with artists such as Craig David, Anne-Marie, and Offset have boosted his profile.
Don’t Miss: Floyd Mayweather Net Worth
Music generated an additional revenue stream through album sales, streaming royalties, and live shows.
Prime Hydration: The Game-Changer
The biggest boost to KSI Net Worth came from Prime Hydration, a sports drink he co-founded with Logan Paul in 2022.
- Prime became a global phenomenon, selling out in stores worldwide.
- In 2023, reports suggested the brand made over $250 million in retail sales.
- KSI’s stake in the company significantly increased his overall fortune.
This venture turned KSI from an influencer to a serious businessman.
Sponsorships and Brand Deals
KSI’s global fame attracted brands. He has worked with:
- Adidas (merchandise partnerships)
- Riot Games (gaming collaborations)
- Sidemen Clothing (his group’s fashion line)
These deals add millions to his annual income.
Sidemen: YouTube Empire
KSI co-founded The Sidemen, a group of UK YouTubers who built one of the biggest channels in Europe.
- Their main channel has over 20 million subscribers.
- Their charity football matches attract stadium crowds.
- Sidemen Clothing is a multi-million-dollar brand.
KSI’s role in Sidemen adds another steady stream of revenue.
Investments and Assets
Embed from Getty ImagesLike many high-earning celebrities, KSI has invested in:
- Property in London
- Cryptocurrency (with mixed results)
- Luxury cars and watches
These investments diversify his income and protect his wealth.
Don’t Miss: Wayne Rooney Net Worth
KSI Net Worth Compared to Other Influencers
KSI stands among the top-earning influencers in the world.
- Jake Paul: Estimated $60 million
- Logan Paul: Estimated $45 million
- MrBeast: Over $100 million
While not the richest, KSI’s ability to succeed across industries makes him unique.
Challenges and Controversies
KSI has also faced challenges:
- Early controversies over old offensive jokes
- Business risks like failed crypto investments
- Pressure from public scrutiny
Yet, his resilience has allowed him to bounce back stronger each time.
Future of KSI’s Net Worth
Looking ahead, KSI’s wealth is set to rise further with Prime’s global expansion, continued boxing events, and his role in the Sidemen.
Conclusion
KSI’s journey proves that digital creators can build empires. From YouTube career to global business success, he is a blueprint for the modern influencer.
In 2025, KSI Net Worth of $100 million reflects his talent, risk-taking, and relentless drive. With every new project, his empire continues to grow.
Don’t Miss: History of England Football Managers