| 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.Â
| Company | Date | Round | Size | Participants |
| Stretch | 2/12 | Series C | $5M | 2 |
| Boston Power | 12/11 | Unattributed | $30M | 3 |
| GreenVolts | 12/11 | Unattributed | $35M | 2 |
| NanoH2O | 12/11 | Unattributed | $30M | 2 |
| BONDS.COM | 12/11 | Series E | $16.6M | 3 |
| Boston Power | 9/11 | Unattributed | $125M | 3 |
| One Medical Group | 9/11 | Series E | $20M | 4 |
| Bleacher Report | 8/11 | Unattributed | $22M | 3 |
| nLight | 8/11 | Series E | $17.5M | 3 |
| Gazillion Entertainment | 8/11 | Unattributed | $20M | 1 |
| FirstRain | 8/11 | Unattributed | $6.4M | 1 |
| Movik Networks | 3/11 | Series C | $25M | 3 |
| BONDS.COM | 3/11 | Unattributed | $6.5M | 4 |
| Centric Software | 2/11 | Series C | $7.5M | 3 |
| Phononic Devices | 2/11 | Series B | $10M | 2 |
| Wonga | 2/11 | Series C | £73M | 3 |
| Yoyi Media | 2/11 | Series B | $20M | 3 |
| Ybrant Digital | 1/11 | Unattributed | $48M | 3 |
| AdKeeper | 1/11 | Series B | $35M | 5 |
| Kineto Wireless | 11/10 | Debt | $3M | 4 |
| Gazillion Entertainment | 11/10 | Series C | $60M | 3 |
| TxVia | 10/10 | Series D | $27.5M | 4 |
| Veebeam | 10/10 | Series B | $6M | 7 |
| Nexant | 9/10 | Unattributed | $43M | 3 |
| GreenVolts | 8/10 | Debt | $7.5M | 1 |
| Boston Power | 6/10 | Series E | $60M | 2 |
| Castlight Health | 6/10 | Series C | $60M | 7 |
| Aurora Biofuels | 3/10 | Series C | $15M | 3 |
| FirstRain | 3/10 | Unattributed | $7.3M | 3 |
| SmartDrive Systems | 12/09 | Series E | $25M | 2 |
| BridgeWave Communications | 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 |
| Moxie Software, Inc. | 5/09 | Series C | $10M | 2 |
| nLight | 1/09 | Unattributed | $10.7M | 3 |
| Major League Gaming | 1/09 | Series B | $7.5M | 1 |
| One Medical Group | 1/09 | Series D | $15M | 3 |
| Boston Power | 1/09 | Series D | $55M | 5 |
| Solarflare Communications | 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 | $300k | 1 |
| Plastic Logic | 8/08 | Series E | $50M | 5 |
| Solarflare Communications | 6/08 | Unattributed | $26M | 4 |
| Aurora Biofuels | 6/08 | Series B | $20M | 3 |
| Photobucket, Corp. | 5/08 | Series B | $10M | 3 |
| ReliOn | 4/08 | Series E | $5M | 6 |
| eSolar | 4/08 | Series B | $130M | 2 |
| Rearden Commerce | 4/08 | Series E | $100M | 4 |
| Federated Media | 4/08 | Series C | $50M | 2 |
| Stretch | 3/08 | Series B | $15M | 3 |
| 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 |
| Modiv Media | 12/07 | Series A | $8M | 3 |
| CDNetworks | 12/07 | Unattributed | $96.5M | 3 |
| KAYAK | 12/07 | Series D | $196M | 9 |
| SmartDrive Systems | 11/07 | Series D | $46M | 6 |
| Tengion | 10/07 | Series C | $33M | 9 |
| NemeriX | 9/07 | Series C | $22.7M | 5 |
| Demand Media | 9/07 | Series D | $135M | 5 |
| Zayo Bandwidth | 8/07 | Unattributed | $225M | 5 |
| iCrossing | 7/07 | Series E | $62M | 4 |
| Stretch | 6/07 | Series B | $12M | 3 |
| LumaSense Technologies | 5/07 | Unattributed | 1 | |
| Zumobi | 5/07 | Series A | $12M | 2 |
| Reunion.com | 4/07 | Unattributed | $25M | 1 |
| MyLife.com | 4/07 | Series A | $25M | 1 |
| Artimi | 3/07 | Series B | $31.5M | 6 |
| Aurora Biofuels | 1/07 | Series A | $5M | 3 |
| SmartDrive Systems | 1/07 | Series C | 4 | |
| Plastic Logic | 1/07 | Series D | $100M | 5 |
| Newport Media | 11/06 | Series C | $30M | 6 |
| Photobucket, Corp. | 11/06 | Series A | $4.5M | 3 |
| Ontela | 11/06 | Series A | $4.5M | 3 |
| Visto | 9/06 | Unattributed | $51M | 7 |
| Linux Networx | 9/06 | Series D | $37M | 4 |
| Demand Media | 9/06 | Series C | $100M | 5 |
| Trapeze Networks | 8/06 | Series D | $30M | 7 |
| Mojix | 8/06 | Unattributed | $5.5M | 3 |
| CoVi Technologies | 7/06 | Unattributed | $15M | 4 |
| MobiTV | 7/06 | Series C | $70M | 5 |
| Stretch | 6/06 | Series A | $10M | 3 |
| PWRF | 6/06 | Series C | $30M | 4 |
| Tengion | 6/06 | Series B | $50M | 7 |
| NeoPhotonics | 6/06 | Series C | $75M | 10 |
| Qpixel Technology | 6/06 | Series B | $25M | 4 |
| Beijing Lingtu Software | 5/06 | Unattributed | $30M | 6 |
| Collabera | 5/06 | Unattributed | $30M | 1 |
| Wavestream | 5/06 | Unattributed | $28M | 1 |
| FirstRain | 4/06 | Unattributed | $18.7M | 3 |
| Demand Media | 4/06 | Seed | $17M | 3 |
| Demand Media | 4/06 | Series A | $122M | 3 |
| Linux Networx | 3/06 | Series C | $10M | 2 |
| Vayusa | 3/06 | Series A | $10M | 3 |
| RazorGator | 3/06 | Series B | $22.8M | 4 |
| Newport Media | 2/06 | Series B | $25M | 5 |
| SNAPin Software | 2/06 | Series C | $19.3M | 4 |
| BeamExpress | 2/06 | Unattributed | $16.7M | 2 |
| Movaz Networks | 1/06 | Unattributed | $20M | 6 |
| Trumba Corporation | 11/05 | Series B | $8M | 3 |
| SHOP.COM | 10/05 | Series A | $25M | 1 |
| United Devices | 9/05 | Series C | $15M | 7 |
| NemeriX | 9/05 | Series B | $31M | 6 |
| Visto | 9/05 | Unattributed | $70M | 7 |
| Business Engine | 9/05 | Unattributed | $4M | 3 |
| Rearden Commerce | 9/05 | Series C | $25M | 2 |
| White Rock Networks | 8/05 | Unattributed | $15.5M | 5 |
| Tengion | 8/05 | Series A | $39M | 4 |
| SNAPin Software | 7/05 | Series B | $3M | 4 |
| Level 5 Networks | 6/05 | Series B | $30M | 4 |
| BeamExpress | 4/05 | Series C | $14.2M | 3 |
| Trapeze Networks | 4/05 | Series C | $17.5M | 5 |
| GENBAND | 3/05 | Unattributed | $18M | 11 |
| RazorGator | 3/05 | Series A | $26M | 3 |
| Solarflare Communications | 2/05 | Series C | $48M | 6 |
| Talisma | 2/05 | Unattributed | $7.07M | 1 |
| CoVi Technologies | 1/05 | Series B | $15M | 4 |