| Link | RaceRock Capital Partners | Stamford | Connecticut | Cambric | | | |
| Link | Rare Ventures | New York | New York | Mainstream Data, Inc | | | |
| Link | RBC Capital Partners/RBC Technology Ventures | Toronto | | | 1 | $3,400,000 | Biotechnology Electronics Scientific Equipment |
| Link | Reed Elsevier Ventures | London | | NextPage | | | Content & Media Information Services Software |
| Link | Ridgeview Capital | Salt Lake City | | Metro Waste | 1 | $1,000,000 | |
| Link | Ridgewood Capital Management, LLC | Ridgewood | New Jersey | Senforce Technologies, Inc | 2 | $3,780,000 | |
| Link | Ridgewood Venture Firm | | | Rappore Technologies | 2 | $3,780,000 | |
| Link | Riverside Company | New York | New York | Digital Technology International | | | |
| Link | Rock Creek Partners | Jacksonville | | iLumin, P5 e.Health Services | 2 | | Communications Medical Devices |
| Link | Rocket Ventures | Menlo Park | | | 2 | $4,720,000 | Advanced Materials |
| Link | Roth Capital Partners | Newport Beach | California | UCN INC | | | |
| Link | RoyNat Capital Corp. (AKA: RoyNat Ventures) | Charlotte | | | 1 | | Software |
| Link | RRE Ventures | New York | | Icrossing | 1 | | Communications Information Services Electronics Software Services Storage |
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