Bill Warner is a Boston-based angel investor the founder of Avid Technology, Inc. and Wildfire Communicatons, Inc.
| Company | Date | Round | Size | Participants |
| MeetCute | 4/12 | Angel | $25k | 1 |
| Libboo | 12/11 | Angel | $300k | 5 |
| Ginger.io | 10/11 | Seed | $1.7M | 10 |
| Leap Motion | 6/11 | Seed | $1.3M | 5 |
| Marginize | 8/10 | Seed | $650k | 11 |
| Posterous | 12/08 | Angel | $725k | 11 |