| Website | 3i.com |
| Phone | +44 (0)20 7928 3131 |
| Employees |
3i is a British private equity group that has billions under management.
| Company | Date | Round | Size | Participants |
| Blue Interactive Group | 12/11 | Unattributed | $55M | 1 |
| TouchTunes Interactive Networks | 8/11 | Unattributed | $45M | 2 |
| Action | 7/11 | Unattributed | 1 | |
| Loxam Holding | 7/11 | Unattributed | €60M | 2 |
| World Freight Company International | 5/11 | Unattributed | €33M | 3 |
| GO Outdoors | 4/11 | Unattributed | £28M | 1 |
| TransMedics | 3/10 | Series E | $36M | 11 |
| CamSemi | 9/09 | Series D | $8.19M | 3 |
| Light Blue Optics | 7/09 | Series A | $15M | 5 |
| Polatis | 6/09 | Unattributed | $8M | 7 |
| Small Bone Innovations | 4/09 | Series D | $108M | 5 |
| Garlik | 4/09 | Series C | $2.34M | 2 |
| BuyVIP | 4/09 | Series C | $20M | 4 |
| Taptu | 12/08 | Series B | £6.45M | 2 |
| Konarka Technologies | 10/08 | Unattributed | $45M | 10 |
| Nujira | 9/08 | Series C | $18M | 6 |
| Carbonite | 9/08 | Series C | $20M | 4 |
| EnOcean | 8/08 | Series D | €4.5M | 5 |
| SLR Consulting | 6/08 | Series C | $64.4M | 1 |
| Garlik | 6/08 | Unattributed | $5M | 3 |
| OmniGuide | 5/08 | Series E | $25M | 7 |
| Coremetrics | 4/08 | Series E | $60M | 2 |
| Triage Wireless | 3/08 | Series B | $20.3M | 4 |
| Nanostellar | 2/08 | Series E | $7.05M | 3 |
| Velocix | 2/08 | Series D | $25M | 3 |
| Zonare Medical Systems | 2/08 | Unattributed | $30M | 8 |
| CacheLogic | 1/08 | Series D | $25M | 3 |
| Ulthera | 1/08 | Series B | $22.5M | 2 |
| Small Bone Innovations | 1/08 | Series C | $36M | 4 |
| Twenga | 12/07 | Seed | €2.6M | 1 |
| Cambridge Semiconductor | 10/07 | Series C | $26M | 5 |
| Light Blue Optics | 10/07 | Series A | $26M | 4 |
| FastBooking | 10/07 | Series B | €35M | 2 |
| Demand Media | 9/07 | Series D | $135M | 5 |
| Icera | 9/07 | Series D | $40M | 6 |
| Metastorm | 8/07 | Series C | $30M | 4 |
| DiBcom | 7/07 | Series E | $27.3M | 10 |
| AOptix Technologies | 5/07 | Series C | $15M | 4 |
| SiGe Semiconductor | 5/07 | Unattributed | $20M | 7 |
| Telisma | 5/07 | Unattributed | $1.62M | 5 |
| Intelliden | 5/07 | Series E | $10M | 4 |
| fabrik | 5/07 | Series D | $24.9M | 2 |
| Carbonite | 5/07 | Series B | $15M | 3 |
| Garlik | 4/07 | Series B | $12M | 2 |
| TransMedics | 4/07 | Series D | $25.5M | 9 |
| Discera | 3/07 | Series C | $17.5M | 6 |
| immatics biotechnologies | 2/07 | Series B | €40M | 6 |
| Nallatech | 1/07 | Series C | $3.93M | 2 |
| Datanomic | 12/06 | Unattributed | $6.3M | 2 |
| Forte Design Systems | 12/06 | Series D | $5.4M | 3 |
| Carbonite | 12/06 | Series A | $3.5M | 2 |
| Netronome Systems | 11/06 | Series C | $20M | 4 |
| Fotolog | 10/06 | Series C | $4M | 2 |
| DeepStream Technologies | 9/06 | Series B | £8M | 2 |
| Sonim Technologies | 9/06 | Unattributed | $8M | 5 |
| Demand Media | 9/06 | Series C | $100M | 5 |
| Crystal IS | 8/06 | Series B | $10.6M | 5 |
| Light Blue Optics | 7/06 | Unattributed | $3.5M | 3 |
| AmberWave | 7/06 | Series E | $25M | 5 |
| CacheLogic | 7/06 | Series C | $20M | 4 |
| ClearApp | 6/06 | Series B | $14.2M | 3 |
| Chronicle Solutions | 6/06 | Series A | $5.52M | 3 |
| Meridea Financial Software | 5/06 | Unattributed | $5.15M | 2 |
| Onyvax | 5/06 | Series C | £8M | 5 |
| Combinature Biopharm | 5/06 | Series C | $5.11M | 3 |
| Screen Tonic | 4/06 | Unattributed | €5.5M | 2 |
| Garlik | 4/06 | Series A | $5.4M | 2 |
| Demand Media | 4/06 | Seed | $17M | 3 |
| Carbonite | 3/06 | Series A | $2.5M | 3 |
| Telisma | 1/06 | Series D | $3.64M | 4 |
| FIRSTGATE Holding | 1/06 | Series D | $24M | 1 |
| ClickandBuy | 1/06 | Series B | €20M | 1 |
| Intelliden | 12/05 | Series D | $11M | 4 |
| Intelliden | 12/05 | Series D | $11M | 4 |
| Trovix | 12/05 | Series A | $5.25M | 3 |
| Peerflix | 10/05 | Series B | $8M | 3 |
| Visto | 9/05 | Unattributed | $70M | 7 |
| Discera | 9/05 | Unattributed | $7M | 4 |
| DiBcom | 8/05 | Series D | €24.5M | 5 |
| Fios | 8/05 | Unattributed | $6.5M | 5 |
| White Rock Networks | 8/05 | Unattributed | $15.5M | 5 |
| Nujira | 8/05 | Series A | $7.75M | 5 |
| Mimix Broadband | 6/05 | Unattributed | $8.5M | 3 |
| Elixent | 4/05 | Series C | $15M | 5 |
| Udex | 3/05 | Unattributed | $5M | 3 |
| EnOcean | 3/05 | Series C | €10M | 4 |
| Peerflix | 3/05 | Series A | $2M | 2 |
| BlueLithium | 2/05 | Series A | $11.5M | 2 |
| Aventeon | 2/05 | Series B | $5M | 3 |
| Rockwell Collins Sweden | 1/05 | Unattributed | $6.7M | 3 |
| SiGe Semiconductor | 1/05 | Unattributed | $8.5M | 9 |
| Intalio | 7/04 | Series B | $11M | 6 |
| Nanostellar | 6/04 | Series A | $3M | 5 |
| EnOcean | 1/04 | Series B | €4.4M | 4 |
| TransMedics | 1/04 | Series B | $27.6M | 8 |
| OpenAir | 1/00 | Unattributed | $16M | 3 |