Investors starting with O

215 investors.

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• O-Ai SWC FOG
• Oak HCFT Management Company · Stamford, CT
• Oak HC/FT Partners · Stamford, CT
• Oakhouse Partners · Park City, UT
• Oakley Touring Venture
• Oak Management Corporation · Wilton, CT
• Oak Proof · Louisville, KY
• Oak Ridge Investment Partners · Seattle, WA
• Oakridge Management Group · Stamford, CT
• Oakseed Tech · County Of Kent, DE
• Oat Capital · Middletown, DE
• OB Growth
• OBS · New York, NY
• Obvious Ventures · San Francisco, CA
• Ocampo Capital · Pacific Palisades, CA
• Oca TMP · Chicago, IL
• Occom SMPL · Brooklyn, NY
• Oceana Ventures · Bal Harbour, FL
• Oceaniq Capital · Palo Alto, CA
• Oceans Ventures · Brooklyn, NY
• Oceanus Growth Partners · San Francisco, CA
• OCTA Angels
• Octave · Lafayette, CA
• Octave Ventures · Henderson, NV
• Octopus First Cheque
• OCVC · Newport Beach, CA
• OCV Partners · Los Angeles, CA
• Odd Bird Ventures · Mountain View, CA
• ODEF · Seattle, WA
• Odola
• ODX Investments · Seattle, WA
• Odyssean Capital
• Odyssey Handshake
• Odyssey Venture · Seattle, WA
• OF4 · Seattle, WA
• Offline Ventures · Mill Valley, CA
• Off Piste · Middletown, DE
• Offscript · Boston, MA
• Offset · Austin, TX
• of Omni Ventures
• Ohio Innovation · Dublin, OH
• Oif · Dublin, OH
• OI Seed Safe Studio VC
• Okahu
• Okapi Venture Capital · Newport Beach, CA
• Okeanos · Great Falls, VA
• OL4 · Seattle, WA
• Old · West Hollywood, CA
• Oldslip · New York, NY
• Old Tom
• Old Tree · San Francisco, CA
• Old Vine Capital Venture Allocation · Austin, TX
• O'Leary Ventures · Miami, FL
• OL Gamma 1.4 · Inlet Beach, FL
• Olive Capital · Atherton, CA
• Olive Technology Ventures · Palo Alto, CA
• Ollin Ventures Atom · Vineyard, UT
• OL Ventures · Seattle, WA
• Olympus · Stamford, CT
• Omega · Boston, MA
• Omega Venture Partners · Menlo Park, CA
• Omnidollar Ventures · Seattle, WA
• Omni Ventures
• Omnivore
• Omri Dahan · Seattle, WA
• OMX Ventures · Lincolnshire, IL
• ON9 · Seattle, WA
• OncoHost Kindling Investment Partners · Middletown, DE
• Oncology Ventures · Boca Raton, FL
• On Deck Flexport · Seattle, WA
• One Eighty Ventures Huupe · Irvine, CA
• One Four Six Fund 2026 Andiron AI
• One Mind Catalyst · Rutherford, CA
• One Mission Ventures · Seattle, WA
• One Mission Ventures Burst · Seattle, WA
• OnePointTwo Capital Pure Alpha Growth · Albany, NY
• Oneteam Ventures · Santa Monica, CA
• One Travel Ventures - Acai Pre-seed · Middletown, DE
• ONEVC Inv Special
• ONEVC Special Opportunity EnterAI · Coral Gables, FL
• ONEVC TSP Special
• One Way Ventures · Boston, MA
• One WAY Ventures Management PBC · Boston, MA
• oneworld BEV · Boston, MA
• OnRamp Education & Workforce Innovation · Madison, WI
• On the Hunt Investments
• Onward · Pasadena, CA
• Onwards Capital
• Oop · Seattle, WA
• Oori
• OP16 · Seattle, WA
• OPA Airspace Data · Tampa, FL
• OPAC Revel · Glenview, IL
• Opal Venture Partners · Bellevue, WA
• OPC · Raleigh, NC
• Opco · Seattle, WA
• Open · Atlanta, GA
• OpenAI
• OpenAI InvestX Capital
• OpenAI Startup · San Francisco, CA
• OpenAI Tender
• OpenBorder Seed
• Open Field Groq · New York, NY
• Open Field Hammerspace · New York, NY
• OpenGrants SEED
• Open growth
• Openlight II VUVP · Austin, TX
• Open Oai · New York, NY
• OpenSky Ventures · Santa Monica, CA
• OpenSource Capital · Austin, TX
• Open SPX · New York, NY
• OPEN Unicorn · New York, NY
• Openview · Boston, MA
• Operate Ventures
• Operator · Seattle, WA
• Operator Collective · Palo Alto, CA
• Operators Studio · San Francisco, CA
• Operator Stack
• Operator Ventures · Seattle, WA
• Ophelia Labs Angels · Middletown, DE
• Opika Ventures
• Opportunistic Ventures · Seattle, WA
• Opportunity · San Francisco, CA
• Opportunity · Seattle, WA
• Optim Circle · San Francisco, CA
• Optimist Ventures · New York, NY
• Opto Artificial Intelligence Early Stage Venture · New York, NY
• Optum Ventures · Boston, MA
• Opulentia Ventures · Fairfax, VA
• Opus Capital Group · Burlingame, CA
• OR26 · Seattle, WA
• Ora Global · New York, NY
• Orange · Seattle, WA
• Orange Bike Brewing SPV EST VC
• Orange Collective · Danville, CA
• Orange Fellowship
• Orbit · Dover, DE
• Orbital Ventures · Chicago, IL
• Orbit Startups
• Orbit Venture Partners · Norwalk, CT
• Orchid Irala Ventures · Walnut, CA
• Ordinary · Seattle, WA
• Orebro Capital · Encinitas, CA
• Oregon Venture · Portland, OR
• Original Capital · Miami, FL
• Original Capital Fund One - MetaMap · Middletown, DE
• Origins Ventures · Seattle, WA
• Origin Ventures · Chicago, IL
• Orion Industrial Ventures · New York, NY
• OrionVC Seed
• Oriza Ventures · San Jose, CA
• Osage · Bala Cynwyd, PA
• OSC Venture · Sanford, NC
• Ospraie Ag Science · Rye, NY
• OSS Capital · San Francisco, CA
• Ot · Boston, MA
• OT AI Cyber · Boston, MA
• OT AI Infrastructure · Boston, DE
• OT Confidential Computing · Boston, MA
• Ot Healthcare · Boston, MA
• Other · San Francisco, CA
• Otherwise · Mill Valley, CA
• OT Materials
• OT Quantum · Boston, MA
• Otravez Capital MW3 · New York, NY
• OT Robotics · Boston, MA
• Ot Yc · Boston, MA
• Oui Capital Mentors · Millbury, MA
• Oup · Bala Cynwyd, PA
• OUP IV AFF Partnership · Bala Cynwyd, PA
• Our · Seattle, WA
• OurCrowd
• Outbound Capital · Saratoga Springs, NY
• Outbound Capital Investments · Seattle, WA
• Outcast Ventures · Burlingame, CA
• Outcomes Collective Growth Capital · Austin, TX
• Outcurve · Washington, DC
• Outfit Ventures · Mill Valley, CA
• Outlander Gamma · Inlet Beach, FL
• Outlier Grove
• Outliers
• Outpost Ventures · Redwood City, CA
• Output Capital · Palo Alto, CA
• Outset Capital · San Francisco, CA
• Outsiders · Norwalk, CT
• Outside the Box Ventures
• Outside Venture Capital · Seattle, WA
• OV5 · Newport Beach, CA
• Oval Park · Raleigh, NC
• OVC · Baltimore, MD
• Overcurrent · Jackson, WY
• OverDrive Ventures PRH
• Overlap · Hicksville, NY
• Overline Seed · Alpharetta, GA
• Overlook · San Francisco, CA
• Overlook Capital · Austin, TX
• Overlord Labs
• Overmatch · Austin, TX
• Oversubscribed Ventures · Los Angeles, CA
• Overture Climate · Santa Monica, CA
• Overview Capital · New York, NY
• Overwater Ventures · Palo Alto, CA
• Ovex · Franklin Lakes, NJ
• OVN Capital · Palo Alto, CA
• OVP · Bala Cynwyd, PA
• OVP VI AFF · Bala Cynwyd, PA
• OV Torus · Chicago, IL
• OV.VC · Seattle, WA
• OWC Blockchain Scout · Seattle, WA
• OWL Ventures · San Francisco, CA
• OXBB · Miami, FL
• Oxcart
• Oxford Alumni Venture · Palo Alto, CA
• Oxshott Venture · New York, NY
• Oyster · Delray Beach, FL