| Category | Semiconductor |
| Employees | |
| Description | Semiconductor Company |
| Series A, 2/09 Sigma Partners Morgenthaler Ventures | $2M |
R2 Semiconductor is a semiconductor company that is currently in stealth mode. The company has received significant funding from Sigma Partner and Morgenthaler Venture Partners, but, as of July 2009, has yet to develop a website, or publicly announce exactly what they are up to.