When it comes to YouTube fame, few names are as globally recognized as KSI and the Sidemen. Together, they’ve built one of the most successful content collectives in digital entertainment. But as KSI’s solo ventures explode—especially with Prime Hydration and boxing deals—fans have started asking the big question:
Is KSI richer than the entire Sidemen group combined?
Let’s break it down.
KSI’s Net Worth in 2025: Estimated $100–150 Million
KSI (real name: Olajide Olayinka Williams Olatunji) has evolved far beyond his FIFA YouTube roots. His income sources now include:
- YouTube: Over 44 million total subscribers across multiple channels
- Music: Top-charting UK rapper with successful albums and international tours
- Boxing: Co-founder of Misfits Boxing, earning millions from high-profile matches against Logan Paul, Tommy Fury, Joe Fournier, and others
- Brand deals and merchandise: Long-term sponsorships and consistently selling products
- Prime Hydration: His biggest business success to date
Prime Hydration, co-founded with Logan Paul in 2022, reportedly generated over $1.2 billion in retail sales by 2024. While exact ownership stakes are private, it’s widely believed KSI owns a substantial minority—possibly worth over $50 million on its own, depending on brand valuation and equity structure.
Altogether, his 2025 estimated net worth ranges between $100 million and $150 million based on various financial analyses and expert evaluations.

SHOP: The Kickboxer Collection
What About the Sidemen’s Combined Net Worth?
The Sidemen—made up of Simon (Miniminter), Tobi (TBJZL), Ethan (Behzinga), Vik (Vikkstar123), Josh (Zerkaa), Harry (W2S), and KSI himself—have collectively grown a massive content empire. Their group projects include:
- Weekly YouTube content on multiple channels
- Premium app and subscription platform (Side+)
- Merchandising and brand licensing
- Their fast food chain (Sides)
- XIX Vodka, their spirits brand
- Public live events and touring shows
Here’s a breakdown of each member’s estimated net worth in 2025 (excluding KSI):
Sideman | Estimated Net Worth |
---|---|
Miniminter (Simon) | $15 million |
Vikkstar123 (Vik) | $12 million |
TBJZL (Tobi) | $5 million |
Behzinga (Ethan) | $6 million |
Zerkaa (Josh) | $4 million |
W2S (Harry) | $10 million |
Combined (excluding KSI): Around $52–$65 million
These figures include personal YouTube channels, brand partnerships, business equity, and personal investments.
The Final Verdict: Is KSI Richer?
KSI’s estimated net worth: $100–150 million
The rest of the Sidemen combined: around $55–65 million
Even using conservative estimates for KSI and the higher end for the other Sidemen, the numbers clearly show that KSI is richer than the other six members combined.
His diversified income—from music to boxing, and especially his equity in Prime—puts him in a different financial league. While the Sidemen as a group are massively successful and growing, none of the other members has a single asset or business venture that comes close to Prime Hydration’s scale or revenue potential.
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