| Website | oakinv.com |
| Phone | (203) 226-8346 |
| Employees | |
| Founded | 1978 |
Oak Investment Partners is a multi-stage venture capital firm with a total of $8.4 billion in committed capital. The primary investment focus is on high growth opportunities in clean energy, communications, information technology, internet new media, financial services information technology, healthcare services and consumer retail. Over a 29-year history, Oak has achieved a strong track record as a stage-independent investor funding more than 435 companies at key points in their lifecycle. Oak has been involved in the formation of companies, funded spinouts of operating divisions and technology assets, and provided growth equity to mid- and late-stage private businesses and to public companies through PIPE investments.
Oak has helped innovators exploit new business opportunities and anticipate trends through long-term relationships that endure the changing economic landscape. Their accomplishments can be best recognized through the success of their companies and the ability to deliver consistent performance over time.
| Company | Date | Round | Size | Participants |
| SmartDrive Systems | 12/09 | Series E | $25M | 2 |
| BridgeWave | 11/09 | Unattributed | $2.4M | 13 |
| Stretch | 11/09 | Series B | $10M | 3 |
| Rearden Commerce | 9/09 | Series F | $40M | 2 |
| Airspan | 9/09 | Series C | $10M | 1 |
| Clarient | 5/09 | Unattributed | $40M | 1 |
| nGenera CIM | 5/09 | Series C | $10M | 2 |
| nLight | 1/09 | Unattributed | $10.7M | 3 |
| Major League Gaming | 1/09 | Series B | $7.5M | 1 |
| Boston Power | 1/09 | Series D | $55M | 5 |
| Solarflare | 12/08 | Unattributed | $32M | 3 |
| Huffington Post | 12/08 | Series C | $25M | 1 |
| Staccato Communications | 11/08 | Unattributed | $20M | 11 |
| Kineto Wireless | 10/08 | Series D | $15.5M | 4 |
| NeoPhotonics | 9/08 | Unattributed | $30M | 3 |
| GreenVolts | 9/08 | Series B | $30M | 1 |
| Plastic Logic | 8/08 | Series E | $50M | 5 |
| Solarflare | 6/08 | Unattributed | $26M | 4 |
| Aurora Biofuels | 6/08 | Series B | $20M | 3 |
| Photobucket | 5/08 | Series B | $10M | 3 |
| ReliOn | 4/08 | Series E | $5M | 6 |
| eSolar | 4/08 | Series B | $130M | 3 |
| Federated Media | 4/08 | Series C | $50M | 2 |
| Rearden Commerce | 4/08 | Series E | $100M | 4 |
| Stretch | 3/08 | Series B | $15M | 3 |
| Demand Media | 3/08 | Series D | $35M | 5 |
| Sundrop Fuels | 2/08 | Series A | $21.3M | 1 |
| ReliOn | 2/08 | Series D | $18M | 5 |
| NextG Networks | 1/08 | Unattributed | $49.8M | 2 |
| Centric Software | 1/08 | Series B | $14.3M | 3 |
| FirstRain | 1/08 | Unattributed | $13.6M | 3 |
| Boston Power | 1/08 | Series C | $45M | 4 |
| CDNetworks | 12/07 | Unattributed | $96.5M | 3 |
| KAYAK | 12/07 | Series D | $196M | 9 |
| SmartDrive Systems | 11/07 | Series D | $46M | 6 |
| Demand Media | 9/07 | Series C | $100M | 5 |
| Zayo Bandwidth | 8/07 | Unattributed | $225M | 5 |
| Stretch | 6/07 | Series B | $12M | 3 |
| LumaSense Technologies | 5/07 | Unattributed | $50M | 3 |
| MyLife | 4/07 | Series A | $25M | 1 |
| Aurora Biofuels | 1/07 | Series A | $5M | 3 |
| SmartDrive Systems | 1/07 | Series C | 4 | |
| Plastic Logic | 1/07 | Series D | $100M | 5 |
| Photobucket | 11/06 | Series A | $4.5M | 3 |
| Visto | 9/06 | Unattributed | $51M | 7 |
| Demand Media | 9/06 | Series B | $100M | 3 |
| MobiTV | 7/06 | Series C | $70M | 5 |
| Stretch | 6/06 | Series A | $10M | 3 |
| Demand Media | 5/06 | Series A | $120M | 3 |
| RazorGator | 3/06 | Series B | $22.8M | 4 |
| SHOP.COM | 10/05 | Series A | $25M | 1 |
| Rearden Commerce | 9/05 | Series C | $25M | 2 |
| RazorGator | 3/05 | Series A | $26M | 3 |
