Marketplace/platform
Categories · Product form
6 companies · Growing sample. Treat patterns here as early signals, not findings.
6ranked (Trust 2+ and Strength 12+)
2with strong evidence (Trust 3+)
2with proven demand (Demand 4+)
–median annual revenue: not enough comparable figures yet
Companies
- ThredUp$310.8M revenue, FY2025, up 20% YoY, FY202516Trust 5/5 · Strength 16/25 · Demand 4/5
- Vinted€1.1B revenue, FY2025 · self-reported14.3Trust 3/5 · Strength 19/25 · Demand 3/5
- Steam$16.5B (+13% YoY vs $14.5B) steam gross player spend, Jan to Sep 2026, Jan to Sep 20269.9Trust 2/5 · Strength 18/25 · Demand 4/5
- Mirakl$218M annual recurring revenue, +23% YoY, 2025 · self-reported8.3Trust 2/5 · Strength 15/25 · Demand 3/5
- WhopOver $400M annualized revenue run rate, CEO statement, October 2026 · self-reported8.3Trust 2/5 · Strength 15/25 · Demand 3/5
- Kalshi$263.5M fee revenue, full year 2025, 20258.3Trust 2/5 · Strength 15/25
How sure we are
Best source behind each company’s figures.
How they make money
Business models
How they sell
What it took to build
Only sourced figures are counted. Unknown is never treated as small.