Key facts
- Marble’s last known valuation is $31.0M (Dec 2025).
- It has raised $9.0M; the latest was Seed Round ($9.0M) in Dec 2025.
- Notable investors include Susa Ventures, m]x[v Capital, Alterna Wealth Management (Florida).
- Status: Privately Held (backing).
- ·The complete investor list — 3 names
- ·Watchlist + deal alerts for Marble
- ·The full record, as it builds
Funding rounds
No funding rounds for Marble are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Marble
Developer of artificial intelligence software intended to support accounting professionals in tax research and workflow automation. The company's platform provides AI agents for instant information retrieval, memo and correspondence drafting, secure handling of client data, integration of project context through document uploads, and citation-backed answers to federal and state tax questions, enabling accounting firms and tax professionals to streamline research and improve drafting efficiency while maintaining data privacy.
- Sector
- Information Technology
- HQ
- New York, NY, United States
- Founded
- 2025
- Website
- marble.ai/
- Ownership
- Privately Held (backing)
Marble 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 Marble 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 Marble in its N-PORT filings yet. We sweep new filings monthly.