| Website | polarisventures.com |
| Phone | 781-290-0770 |
| Employees | |
| Founded | 1/96 |
Polaris Venture Partners was founded in 1996, and in its 10+ years of existence has made investments in successful companies like Akamai, Allaire, Alnylam, Automattic, JibJab, LogMeIn, PowerSoft, QuantCast, Sirtris, and SolidWorks. The company’s portfolio extends beyond digital media investments through its stakes in life sciences and enterprise software concerns and other industries.
| Company | Date | Round | Size | Participants |
| Aria Retirement Solutions | 2/12 | Unattributed | $4M | 1 |
| Recurly | 1/12 | Series A | $6M | 4 |
| Cerulean Pharma | 12/11 | Series D | $15M | 5 |
| Arsenal Vascular | 10/11 | Unattributed | $3M | 3 |
| Turntable.fm | 9/11 | Series A | $7M | 10 |
| Pulmatrix | 8/11 | Series B | $14M | 4 |
| T2 Biosystems | 8/11 | Series D | $23M | 10 |
| Lascaux Co. | 7/11 | Seed | $600k | 4 |
| ReadyForZero | 6/11 | Series A | $4.5M | 2 |
| JIBE | 5/11 | Series A | $6M | 6 |
| Neuronetics | 5/11 | Series E | $30M | 8 |
| ShoeDazzle | 5/11 | Series C | $40M | 3 |
| Seventh Sense Biosystems | 5/11 | Series A | $4.5M | 3 |
| TARIS Biomedical | 4/11 | Series B | $18.3M | 4 |
| Message Bus | 3/11 | Series A | $3.35M | 7 |
| BridgePoint Medical | 3/11 | Series C | $9.1M | 3 |
| Offline Labs | 3/11 | Seed | $1M | 11 |
| Arsanis | 2/11 | Series A | $10M | 3 |
| Seamless Receipts | 2/11 | Unattributed | $1.5M | 4 |
| CatchFree | 1/11 | Series A | $5.5M | 6 |
| Genocea Biosciences | 1/11 | Series B | $35M | 9 |
| 1366 Technologies | 12/10 | Series B | $6M | 3 |
| Cerulean Pharma | 11/10 | Series C | $24M | 5 |
| aTyr Pharma | 10/10 | Series C | $23M | 4 |
| SiOnyx | 10/10 | Series B | $12.5M | 4 |
| 1366 Technologies | 10/10 | Series B | $20M | 4 |
| FREEjit | 10/10 | Series A | 5 | |
| Sun Catalytix | 10/10 | Series B | $9.5M | 2 |
| Infinite Power Solutions | 8/10 | Series C | $20M | 5 |
| Cardlytics | 8/10 | Series C | $18M | 6 |
| Visterra | 8/10 | Series A | $6M | 3 |
| Recurly | 7/10 | Seed | $1.6M | 7 |
| Trevena | 7/10 | Series B | $35M | 4 |
| Aepona | 6/10 | Unattributed | $10M | 8 |
| Bind Biosciences | 6/10 | Series C | $12.4M | 4 |
| Acceleron Pharma | 6/10 | Unattributed | $8.4M | 5 |
| T2 Biosystems | 5/10 | Series C | $15M | 9 |
| Phreesia | 5/10 | Series D | $16M | 6 |
| Arsenal Vascular | 5/10 | Unattributed | $10M | 3 |
| Stickybits | 5/10 | Series A | $1.6M | 3 |
| ShoeDazzle | 4/10 | Series B | $13M | 2 |
| BlackArrow | 4/10 | Series C | $27M | 7 |
| Selecta Biosciences | 4/10 | Series C | $15M | 5 |
| JIBE | 3/10 | Seed | $875k | 5 |
| Formspring | 3/10 | Series A | $2.5M | 12 |
| Stickybits | 3/10 | Seed | $300k | 2 |
| Arsenal Vascular | 3/10 | Debt | $1M | 3 |
| Allurent | 2/10 | Unattributed | $2M | 1 |
| 1366 Technologies | 2/10 | Unattributed | $5.15M | 2 |
| Adimab | 1/10 | Series D | $8.2M | 5 |
| Phytel | 1/10 | Unattributed | $14.2M | 1 |
| MicroCHIPS | 1/10 | Unattributed | $16.5M | 9 |
| Quantcast | 1/10 | Series C | $27.5M | 4 |
| Free & Clear | 1/10 | Unattributed | $10M | 3 |
| Apnex Medical | 12/09 | Series B | $14M | 3 |
| Ironwood Pharmaceuticals | 11/09 | Unattributed | $306M | 6 |
| Sun Catalytix | 11/09 | Series C | $1M | 1 |
| ShoeDazzle | 11/09 | Series A | $7M | 1 |
| Fate Therapeutics | 11/09 | Series B | $30M | 6 |
| Pulmatrix | 11/09 | Series B | $30.2M | 4 |
| Thing Labs | 11/09 | Series A | $600k | 4 |
| Alimera Sciences | 10/09 | Series C | $5M | 5 |
| aTyr Pharma | 9/09 | Series C | $12M | 3 |
| Pervasis Therapeutics | 8/09 | Series C | $17.4M | 3 |
| Cerulean Pharma | 7/09 | Series B | $10M | 4 |
| Egnyte | 7/09 | Series A | $6M | 2 |
| Experience, Inc. | 7/09 | Unattributed | $4.4M | 1 |
| TARIS Biomedical | 6/09 | Series A | $15M | 3 |
| Ocular Therapeutix | 6/09 | Series C | $15M | 3 |
| Hangout Industries | 5/09 | Series B | $4M | 2 |
| VKernel Corporation | 5/09 | Series B | $7M | 3 |
| Parasol Therapeutics | 5/09 | Series A | $3.25M | 3 |
| Pulmatrix | 3/09 | Series A | $3.5M | 2 |
| Veracode | 3/09 | Series C | $5M | 5 |
| Selecta Biosciences | 2/09 | Series B | $15.1M | 4 |
| Phreesia | 2/09 | Series C | $11.6M | 5 |
| JibJab | 1/09 | Series C | $7.5M | 3 |
| Roundbox | 12/08 | Series C | $20M | 5 |
| Infinite Power Solutions | 12/08 | Series B | $13M | 5 |
| Paratek | 12/08 | Unattributed | $20M | 5 |
| Adimab | 11/08 | Series C | $4M | 4 |
| Cardiac Concepts | 10/08 | Series B | $21M | 6 |
| Lolapps | 9/08 | Series A | $4M | 3 |
| Living Proof | 8/08 | Series A | $7M | 1 |
| Follica | 8/08 | Series B | $11M | 3 |
| Athenix | 7/08 | Series D | $10M | 3 |
| Wakonda Technologies | 6/08 | Series A | $3.16M | 4 |
| Thing Labs | 6/08 | Series A | $1.6M | 1 |
| ChipIn | 6/08 | Series B | $5M | 2 |
| GreenFuel | 5/08 | Series C | $13.9M | 3 |
| Sprout | 5/08 | Series B | $5M | 3 |
| Turbine | 4/08 | Series C | $40M | 5 |
| Modelinia | 4/08 | Series A | $5M | 1 |
| Imprivata | 4/08 | Series C | $15M | 4 |
| 1366 Technologies | 3/08 | Series A | $12.4M | 2 |
| Trevena | 3/08 | Series A | $24M | 4 |
| PublicEarth | 2/08 | Series A | $3M | 1 |
| Pervasis Therapeutics | 1/08 | Unattributed | $9.75M | 4 |
| Cerulean Pharma | 1/08 | Series B | $8.1M | 5 |
| Automattic | 1/08 | Series B | $29.5M | 4 |
| Quantcast | 1/08 | Series B | $20M | 2 |
| ARPU | 1/08 | Series C | $8.73M | 3 |
| ice | 1/08 | Series A | $47M | 1 |
| HealthCentral | 1/08 | Series A | $50M | 4 |
| Fate Therapeutics | 11/07 | Series A | $12M | 4 |
| Dataupia | 11/07 | Series B | $16M | 3 |
| Mintera | 10/07 | Series C | $19M | 6 |
| JibJab | 10/07 | Series B | $4M | 1 |
| BlackArrow | 10/07 | Series B | $12M | 5 |
| Adimab | 9/07 | Series A | $5.9M | 2 |
| Phreesia | 9/07 | Series B | $10.3M | 2 |
| Adnexus | 8/07 | Series C | $15.5M | 5 |
| Biolex Therapeutics | 5/07 | Series C | $30M | 9 |
| Cerulean Pharma | 5/07 | Series A | $12.1M | 3 |
| aTyr Pharma | 4/07 | Series B | $10.5M | 3 |
| Impinj | 3/07 | Series E | $19M | 10 |
| Hangout Industries | 3/07 | Series A | $6M | 2 |
| Aepona | 2/07 | Series C | $10M | 3 |
| BridgePoint Medical | 1/07 | Series B | $10M | 3 |
| Veracode | 1/07 | Series B | $19.5M | 5 |
| Heavy | 1/07 | Series C | $20M | 1 |
| Q1 Labs | 1/07 | Series D | $9M | 5 |
| Cerulean Pharma | 12/06 | Unattributed | $2M | 1 |
| BlackArrow | 11/06 | Series B | $14.8M | 3 |
| BridgePort Networks | 11/06 | Series C | $13M | 4 |
| Athletes' Performance | 10/06 | Unattributed | 1 | |
| SiCortex | 10/06 | Series B | $21M | 6 |
| Mintera | 10/06 | Series B | $10M | 5 |
| WHI Solution | 9/06 | Unattributed | $17.9M | 2 |
| Confluence Technologies | 8/06 | Unattributed | $60M | 1 |
| Acceleron Pharma | 8/06 | Series B | $30M | 6 |
| ARPU | 7/06 | Series B | $5M | 4 |
| Adnexus | 6/06 | Series B | $27M | 4 |
| JibJab | 6/06 | Series A | $6.4M | 1 |
| Ember | 6/06 | Unattributed | $12M | 7 |
| Promedior | 5/06 | Series A | $14M | 5 |
| Roundbox | 4/06 | Series B | $15M | 3 |
| CodeRyte | 3/06 | Series C | $8.52M | 7 |
| Veracode | 3/06 | Unattributed | $7.5M | 2 |
| Archivas | 2/06 | Series C | $12M | 3 |
| Asempra Technologies | 2/06 | Series B | $20M | 3 |
| Imprivata | 2/06 | Series B | $8.91M | 3 |
| Heavy | 1/06 | Unattributed | $10M | 1 |
| Zingdom Communications | 1/06 | Series C | $13M | 3 |
| Athenix | 1/06 | Series C | $13M | 6 |
| T2 Biosystems | 1/06 | Unattributed | $5.5M | 3 |
| Impinj | 12/05 | Unattributed | $26.5M | 9 |
| LogMeIn | 12/05 | Series B | $10M | 4 |
| mValent | 12/05 | Series C | $6M | 3 |
| Alimera Sciences | 11/05 | Series B | $31.8M | 5 |
| nanosys | 11/05 | Series D | $41.5M | 16 |
| PhyFlex Networks | 10/05 | Unattributed | $2.5M | 3 |
| Biolex Therapeutics | 9/05 | Series B | $36M | 6 |
| Pervasis Therapeutics | 8/05 | Series B | $17.4M | 3 |
| Automattic | 7/05 | Series A | $1.1M | 6 |
| Paratek | 5/05 | Series C | $15M | 5 |
| Turbine | 5/05 | Series B | $30M | 4 |
| Prospex Medical | 4/05 | Seed | $1.5M | 2 |
| MessageGate | 4/05 | Unattributed | $5M | 5 |
| Mintera | 4/05 | Series B | $18.5M | 5 |
| Digital Safety Technologies | 4/05 | Unattributed | $41.1M | 5 |
| Sirtris Pharmaceuticals | 3/05 | Series B | $27M | 6 |
| Aepona | 3/05 | Series B | $20M | 4 |
| Frictionless Commerce | 2/05 | Unattributed | $6.2M | 4 |
| Art.com | 2/05 | Series A | $30M | 2 |
| Sirtris Pharmaceuticals | 12/04 | Series A | $13M | 5 |
| BlackArrow | 12/04 | Series A | $6M | 3 |
| WeatherBug | 3/04 | Series B | $23M | 3 |
| Athenix | 1/04 | Series B | $12.5M | 5 |
| 170 Systems | 4/02 | Series A | $14M | 1 |
| Athenix | 9/01 | Series A | $8M | 3 |
| Sentillion | 9/01 | Series C | $18M | 7 |
| Sentillion | 4/00 | Series B | $8.75M | 5 |
| Sentillion | 3/99 | Series A | $2.7M | 3 |
| Sentillion | 3/99 | Series A | $2.7M | 3 |