Key facts
- Overstone’s last known valuation is $8.3M (Sep 2024).
- It has raised $3.6M; the latest was Later Stage VC ($80K) in Nov 2025.
- Notable investors include Caliance Investment, Nebulytics Capital.
- Status: Privately Held (backing).
Investors
2- ·The complete investor list — 2 names
- ·Watchlist + deal alerts for Overstone
- ·The full record, as it builds
Funding rounds
No funding rounds for Overstone are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Overstone
Developer of data-driven risk assessment tools designed to evaluate the financial characteristics and risks of art and collectibles. The company's platform applies data analytics to determine mark-to-market values and assess liquidity risk across individual artworks and collections, enabling insurance providers, financial institutions, and family offices to make informed decisions on art insurance and financing based on accurate risk profiling.
- Sector
- Information Technology
- HQ
- London, United Kingdom
- Founded
- 2012
- Employees
- 14
- Website
- overstoneart.com/
- Ownership
- Privately Held (backing)
Overstone doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Overstone shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Overstone in its N-PORT filings yet. We sweep new filings monthly.