Bay Partners is a venture capital firm based in Menlo Park, California. Founded by John Freidenrich in 1976, it has funded over 200 information technology and healthcare businesses.
| Company | Date | Round | Size | Participants |
| MuleSoft | 4/13 | Private Equity | $37M | 7 |
| Apigee | 7/12 | Series E | $20M | 5 |
| Sonatype | 7/12 | Venture Round | $25M | 5 |
| Dropcam | 6/12 | Series B | $12M | 3 |
| Zenprise | 10/11 | Series E | $30M | 6 |
| Salesforce Buddy Media | 8/11 | Series D | $54M | 4 |
| ParAccel | 7/11 | Venture Round | 7 | |
| Envia Systems | 1/11 | Series C | $17M | 5 |
| dynaTrace software | 1/11 | Venture Round | $4M | 2 |
| Plastic Jungle | 11/10 | Series C | $10M | 5 |
| Salesforce Buddy Media | 10/10 | Series C | $23M | 4 |
| Veebeam | 10/10 | Series B | $6M | 7 |
| Sonatype | 9/10 | Series B | $11.6M | 4 |
| Xactly Corp | 7/10 | Series E | $7.5M | 5 |
| Zenprise | 6/10 | Venture Round | $9M | 5 |
| Enphase Energy | 3/10 | Venture Round | $40M | 5 |
| MuleSoft | 3/10 | Series C | $12M | 5 |
| Plastic Jungle | 3/10 | Series B | $7.4M | 4 |
| Apigee | 2/10 | Venture Round | $14.1M | 4 |
| HipLogic | 12/09 | Series B | $7M | 4 |
| Engine Yard | 10/09 | Series C | $19M | 6 |
| Jambool | 8/09 | Series B | $5M | 2 |
| ParAccel | 6/09 | Series C | $22M | 5 |
| Yapta | 6/09 | Series C | $2M | 5 |
| Enphase Energy | 5/09 | Venture Round | $22.5M | 5 |
| Cornerstone OnDemand | 3/09 | Series E | $12.7M | 3 |
| Zenprise | 3/09 | Venture Round | $10M | 4 |
| M-Factor | 2/09 | Venture Round | 4 | |
| Plastic Jungle | 1/09 | Series A | $6M | 5 |
| Staccato Communications | 11/08 | Venture Round | $20M | 11 |
| Interact Public Safety | 11/08 | Venture Round | $28M | 3 |
| OncoMed Pharmaceuticals | 11/08 | Series B | $154M | 8 |
| Envia Systems | 10/08 | Series A | $3.2M | 2 |
| AMEC | 10/08 | Series C | $58M | 5 |
| Apigee | 10/08 | Series C | $10M | 4 |
| Eventful | 10/08 | Series C | $10M | 3 |
| Applied Identity | 10/08 | Series C | $10M | 5 |
| Daptiv | 8/08 | Series B | $6M | 4 |
| dynaTrace software | 8/08 | Series B | $12.9M | 2 |
| Elastra | 8/08 | Series B | $12M | 3 |
| Jambool | 8/08 | Series A | $1M | 3 |
| Like.com | 8/08 | Series C | $32M | 5 |
| Corefino | 7/08 | Series A | $13.6M | 2 |
| SpringSource | 6/08 | Series B | $15M | 3 |
| PurePlay | 5/08 | Series C | $15M | 3 |
| Xactly Corp | 4/08 | Series D | $30M | 6 |
| Advanced Power Projects | 3/08 | Series A | $13M | 3 |
| TrueDemand Software | 2/08 | Series C | $2.7M | 3 |
| Ensenda | 1/08 | Venture Round | $10.3M | 3 |
| NanoGram | 1/08 | Series C | $32M | 14 |
| ParAccel | 12/07 | Series B | $22M | 4 |
| SocialPicks | 12/07 | Series A | $500k | 1 |
| Ojos | 11/07 | Venture Round | $3M | 3 |
| Staccato Communications | 10/07 | Venture Round | $17.5M | 6 |
| Eloqua | 10/07 | Series C | $23M | 3 |
| PicksPal | 10/07 | Series C | $3M | 2 |
| Cornerstone OnDemand | 9/07 | Series D | $32M | 2 |
| g2One | 8/07 | Venture Round | 1 | |
| FantasyBook | 7/07 | Seed | 1 | |
| Triggit | 7/07 | Angel | $500k | 1 |
| M-Factor | 6/07 | Series C | $10.1M | 2 |
| SpringSource | 6/07 | Series A | $10M | 2 |
| Daptiv | 5/07 | Series A | $12M | 2 |
| Zenprise | 5/07 | Series C | $4.5M | 3 |
| Sana Security | 4/07 | Series E | $12M | 2 |
| Akros Silicon | 3/07 | Series B | $10.1M | 4 |
| Apigee | 11/06 | Series B | $16M | 4 |
| Advanced Micro-Fabrication Equipment | 10/06 | Series B | $35M | 8 |
| Wallop | 9/06 | Series B | $10M | 2 |
| Exeros | 9/06 | Series B | $12M | 3 |
| BoardVantage | 9/06 | Series D | $5.5M | 2 |
| Eloqua | 9/06 | Series B | $12.8M | 2 |
| Eventful | 9/06 | Series B | $7.5M | 3 |
| TrueDemand Software | 8/06 | Series B | $8M | 3 |
| PWRF | 6/06 | Series C | $30M | 4 |
| Cswitch | 5/06 | Series B | $30M | 8 |
| Applied Identity | 5/06 | Series B | $12M | 4 |
| Xactly Corp | 3/06 | Series B | $8M | 4 |
| Montalvo Systems | 3/06 | Series B | $26.3M | 4 |
| PicksPal | 2/06 | Series B | $4M | 2 |
| NanoGram | 1/06 | Venture Round | $18.7M | 8 |
| Zingdom Communications | 1/06 | Series C | $13M | 3 |
| Ojos | 1/06 | Series B | $15M | 3 |
| Code Green Networks | 1/06 | Series C | $15M | 3 |
| SilverStorm Technologies | 1/06 | Venture Round | $13M | 4 |
| Staccato Communications | 1/06 | Series C | $18M | 5 |
| Like.com | 1/06 | Series B | $12M | 4 |
| PWRF | 10/05 | Series B | $8M | 3 |
| Capella Photonics | 9/05 | Series D | $10M | 3 |
| TrueDemand Software | 8/05 | Series A | $6M | 2 |
| Akros Silicon | 7/05 | Series A | $9M | 2 |
| Zenprise | 6/05 | Series B | $11M | 3 |
| Like.com | 5/05 | Series A | $3.3M | 5 |
| Apigee | 4/05 | Series A | $12M | 2 |
| NeoScale Systems | 3/05 | Series D | $12M | 4 |
| WhereNet | 1/05 | Venture Round | $5M | 5 |
| Applied Identity | 1/05 | Series A | $11M | 3 |
| Advanced Micro-Fabrication Equipment | 1/05 | Venture Round | $38M | 5 |
| Code Green Networks | 1/05 | Series B | $15M | 1 |
| Tealeaf | 9/02 | Series C | $12M | 3 |