29th edition · updated
Venture capital and private equity firms starting with O
This page lists the 172 firms in VCPro Database 2026 whose names begin with the letter O. Each is recorded with its investment stage, industry preference, geographic focus, check size range and capital under management, plus named executives with direct work email addresses.
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7,670+
VC & PE firms
55,650+
Investor contacts
29th
Current edition
1998
Trusted since
Firm index
Browse the directory A–Z
Every firm profiled in VCPro Database 2026, listed alphabetically.
Showing firms beginning with the letter O (172 firms).
Firm website links open in a new tab.
- o15 Capital Partners (opens in a new tab)
- O2 Capital Partners (opens in a new tab)
- O2 Investment Partners (opens in a new tab)
- O3 Partners (opens in a new tab)
- Oak HC/FT (opens in a new tab)
- Oak Hill Capital (opens in a new tab)
- Oak Investment Partners (opens in a new tab)
- Oakfield Capital Partners (opens in a new tab)
- Oakland Standard Co. (opens in a new tab)
- Oakley Capital (opens in a new tab)
- Oaktree Capital Management (opens in a new tab)
- Oberland Capital Management (opens in a new tab)
- Oberon Private Ventures (opens in a new tab)
- Observer Capital (opens in a new tab)
- Obunsha Ventures (opens in a new tab)
- Obvious Ventures (opens in a new tab)
- OCA Ventures (opens in a new tab)
- OCCIDENT (opens in a new tab)
- Ocean Avenue Capital Partners (opens in a new tab)
- Ocean Azul Partners (opens in a new tab)
- Ocean Link (opens in a new tab)
- Oceania Capital Partners (opens in a new tab)
- Oceanpine Capital (opens in a new tab)
- Oceans (opens in a new tab)
- Oceans Equity (opens in a new tab)
- Oceans Ventures (opens in a new tab)
- OceanSound Partners (opens in a new tab)
- Octave (opens in a new tab)
- OCTAVE Capital (opens in a new tab)
- OCTAVE Capital (opens in a new tab)
- Octave Ventures (opens in a new tab)
- Octopus Ventures (opens in a new tab)
- Odewald KMU (opens in a new tab)
- Odyssée Venture (opens in a new tab)
- Odyssey Investment Partners (opens in a new tab)
- Odyssey Private Equity (opens in a new tab)
- Odyssey Venture Partners (opens in a new tab)
- Offline Ventures (opens in a new tab)
- OFS Capital (opens in a new tab)
- Ohio Innovation Fund (opens in a new tab)
- OIC (opens in a new tab)
- OIF Ventures (opens in a new tab)
- Oita Venture Capital (opens in a new tab)
- Okapi Venture Capital (opens in a new tab)
- Okta Ventures (opens in a new tab)
- Oktogon Ventures (opens in a new tab)
- Old College Capital (opens in a new tab)
- Old Ironsides Energy (opens in a new tab)
- Old Line Capital Partners (opens in a new tab)
- Old Mutual Private Equity (opens in a new tab)
- Olive Tree Capital (opens in a new tab)
- Oltre Impact (opens in a new tab)
- Olympus Capital Asia (opens in a new tab)
- Olympus Capital Investments (opens in a new tab)
- Olympus Partners (opens in a new tab)
- Omega Capital (opens in a new tab)
- Omega Funds (opens in a new tab)
- Omega Venture Partners (opens in a new tab)
- OMERS Private Equity (opens in a new tab)
- OMERS Ventures (opens in a new tab)
- Omidyar Network (opens in a new tab)
- Omnes Capital (opens in a new tab)
- Omni Partners (opens in a new tab)
- Omni Ventures (opens in a new tab)
- Omnivore (opens in a new tab)
- Omron Ventures (opens in a new tab)
- OMX Ventures (opens in a new tab)
- Ona Capital Privat (opens in a new tab)
- ONCAP (opens in a new tab)
- Oncology Ventures (opens in a new tab)
- Ondine Capital (opens in a new tab)
- One Better Ventures (opens in a new tab)
- ONE Bow River (opens in a new tab)
- One Capital (opens in a new tab)
- One Equity Partners (opens in a new tab)
- ONE Funds (opens in a new tab)
- One Peak (opens in a new tab)
- One Rock Capital Partners (opens in a new tab)
- One Two Capital (opens in a new tab)
- One Way Ventures (opens in a new tab)
- ONEVC (opens in a new tab)
- OneVentures (opens in a new tab)
- Onex Partners (opens in a new tab)
- Ono Venture Investment (opens in a new tab)
- Onsight Ventures (opens in a new tab)
- Onward Capital (opens in a new tab)
- Oost NL (opens in a new tab)
- Open Field Capital (opens in a new tab)
- Open Opportunity Fund (opens in a new tab)
- Open Prairie (opens in a new tab)
- OpenAI Starup Fund (opens in a new tab)
- OpenAir Equity Partners (opens in a new tab)
- OpenGate Capital (opens in a new tab)
- OpenOcean (opens in a new tab)
- Openseed VC (opens in a new tab)
- Openspace Capital (opens in a new tab)
- OpenView (opens in a new tab)
- OPK Capital (opens in a new tab)
- Optimist Ventures (opens in a new tab)
- Optum Ventures (opens in a new tab)
- Opus Capital (opens in a new tab)
- Oquendo Capital (opens in a new tab)
- Oquirrh Ventures (opens in a new tab)
- Orange Ventures (opens in a new tab)
- Orangewood Partners (opens in a new tab)
- ORAXYS Sustainable Private Equity (opens in a new tab)
- Orbia Ventures (opens in a new tab)
- OrbiMed (opens in a new tab)
- Orbit Capital (opens in a new tab)
- Orchestra Private Equity (opens in a new tab)
- Orchid Asia Group Management (opens in a new tab)
- Orco Investments (opens in a new tab)
- Oregon Sports Angels (opens in a new tab)
- Oregon Venture Fund (opens in a new tab)
- Oresa (opens in a new tab)
- ORI Capital (opens in a new tab)
- Oridian Capital Partners (opens in a new tab)
- Oriens Capital (opens in a new tab)
- Origami Capital Partners (opens in a new tab)
- Origin Ventures (opens in a new tab)
- Orios Venture Partners (opens in a new tab)
- ORIX Capital Partners (opens in a new tab)
- ORIX Growth Capital (opens in a new tab)
- Orkila Capital (opens in a new tab)
- Orlando Capital (opens in a new tab)
- Orogen Group (opens in a new tab)
- Osage Venture Partners (opens in a new tab)
- Osceola Capital Management (opens in a new tab)
- OSF Ventures (opens in a new tab)
- Osprey Investors (opens in a new tab)
- OSS Capital (opens in a new tab)
- OTB Ventures (opens in a new tab)
- Otro Capital (opens in a new tab)
- Ouabache Investments (opens in a new tab)
- Oui Capital (opens in a new tab)
- OUP (Osage University Partners) (opens in a new tab)
- OUROBOROS (opens in a new tab)
- Outcomes Collective Growth Capital (opens in a new tab)
- Outfitter Energy Capital (opens in a new tab)
- Outlast Fund (opens in a new tab)
- Outlier (opens in a new tab)
- Outpost Ventures (opens in a new tab)
- Output Capital (opens in a new tab)
- Outrun Ventures (opens in a new tab)
- Outsiders Fund (opens in a new tab)
- Outsized Ventures (opens in a new tab)
- Outward VC (opens in a new tab)
- Oval Park Capital (opens in a new tab)
- Overlap Holdings (opens in a new tab)
- Overline (opens in a new tab)
- Overmatch Ventures (opens in a new tab)
- Overton Venture Capital (opens in a new tab)
- Overture Ventures (opens in a new tab)
- Overwater Ventures (opens in a new tab)
- OVO Fund (opens in a new tab)
- OW Ventures (opens in a new tab)
- Owl Creek Partners (opens in a new tab)
- Owl Ventures (opens in a new tab)
- Owner Resource Group (opens in a new tab)
- OWW Capital Partners (opens in a new tab)
- Oxer Capital (opens in a new tab)
- Oxford Capital Group (opens in a new tab)
- Oxford Capital Partners (opens in a new tab)
- Oxford Finance (opens in a new tab)
- Oxford Innovation Finance (opens in a new tab)
- Oxford Investment Consultants LLP (opens in a new tab)
- Oxford Science Enterprises (opens in a new tab)
- Oxford Seed Fund (opens in a new tab)
- Oxford Technology Management (opens in a new tab)
- Oxford University Innovation (opens in a new tab)
- Oxx (opens in a new tab)
- Oyster Bay (opens in a new tab)
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About the VCPro venture capital directory
The directory home page explains what each firm profile records, how venture capital firms, private equity firms, family investment offices and corporate investors differ, and answers the questions founders and researchers ask most often about this index.
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