3i is a British private equity group that has billions under management.
| Company | Date | Round | Size | Participants |
| Coremetrics | 4/08 | Series E | $60M | 1 |
| Twenga | 12/07 | Seed | €2.6M | 1 |
| FastBooking | 10/07 | Series B | €35M | 2 |
| Demand Media | 9/07 | Series C | $100M | 5 |
| fabrik | 5/07 | Series D | $24.9M | 2 |
| Carbonite | 5/07 | Series B | $15M | 3 |
| Carbonite | 12/06 | Series A | $3.5M | 2 |
| Demand Media | 9/06 | Series B | $100M | 3 |
| Carbonite | 3/06 | Series A | $2.5M | 3 |
| ClickandBuy | 1/06 | Series B | €20M | 1 |
| Peerflix | 10/05 | Series B | $8M | 3 |
| Peerflix | 3/05 | Series A | $2M | 2 |
| BlueLithium | 2/05 | Series A | $11.5M | 2 |
| Fotolog | Series A | $12M | 2 | |
| OpenAir | Unattributed | $16M | 3 |
