Mercuri is an early-stage venture capital fund and first-cheque investor leading pre-seed and seed funding rounds for UK media technology and AI companies. The firm was formerly known as GMG Ventures and is a certified B Corp based in London.
Deal activity increased 100% year-over-year (6 deals in the last 12 months). Their most common stage is seed (64% of deals). Average disclosed round size is $44.9M (across 9 rounds with reported amounts).
Portfolio
10
Fund Size
—
Top Stage
Seed
Last 12 Mo
7
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
14 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Electric Twin | Pre-Seed | $14M | Feb 2026 |
| Electric Twin | Seed | $10M | Feb 2026 |
 Mozart | Seed | $6M | Feb 2026 |
 Unbox | Series B | $28M | Jan 2026 |
 Minitap | Seed | $4.1M | Dec 2025 |
| Minitap | Seed | — | Oct 2025 |
 Signal | Growth | $165M | Sep 2025 |
 Literal Labs | Pre-Seed | — | Jun 2025 |
| Mozart | Seed | $6M | Feb 2025 |
 Signal AI | Unknown | $165M | Jan 2025 |
| Minitap | Seed | — | Dec 2024 |
| HHuman Native | Seed | — | Jan 2024 |
 Mozart AI | Seed | $6M | — |
 ittybit | Seed | — | — |
Top Co-Investors
EWOR5 shared
Balderton Capital3 shared
Battery Ventures2 shared
MMC Ventures2 shared
Highland Europe2 shared
Atomico2 shared
Phoenix Court Group2 shared
Amigos Venture Capital2 shared
Motier Ventures2 shared
Tectonic Ventures2 shared
Samos Investments1 shared
DOUG Ventures1 shared
Northern Gritstone1 shared
3one4 Capital1 shared
F-Prime Capital1 shared
Notion Capital1 shared
ICICI Venture1 shared
Love Ventures1 shared
Latitude1 shared
Oxford Capital1 shared
Last updated: 9 September 2026