| O&N B.V. | 3 | 0 | € 699.850 | — |
| O&O-FR B.V. | 2 | 0 | € 44.794 | — |
| O3 Systems Energy BV | 2 | 0 | € 44.999 | — |
| O7 Designers B.V. | 1 | 0 | € 20.000 | — |
| Oasen N.V. | 0 | 3 | — | — |
| Oasis Motion Surfaces B.V. | 2 | 0 | € 209.014 | — |
| OASYS NOW B.V. | 1 | 0 | € 20.000 | 2 |
| Obi4Wan B.V. | 1 | 0 | € 25.000 | — |
| Obimex B.V. | 0 | 1 | — | — |
| Obinion Holding B.V. | 1 | 0 | € 20.000 | — |
| Objectiv B.V. | 1 | 1 | € 36.429 | — |
| Obotize B.V. | 0 | 1 | — | — |
| Obscape B.V. | 1 | 0 | € 20.000 | — |
| Obseq B.V. | 1 | 0 | € 20.000 | — |
| Obseq B.V. / Spero Tenens B.V. / Apollo 11 Mission Holding B.V. | 1 | 0 | € 20.000 | — |
| OCA B.V. | 4 | 0 | € 83.960 | — |
| OCA Venlo B.V. | 1 | 0 | € 21.250 | — |
| OCAP CO2 B.V. | 0 | 0 | — | 3 |
| Occlufibre B.V. | 1 | 0 | € 20.000 | — |
| OccluTex Medical B.V. | 2 | 0 | € 40.000 | — |
| Ocean AI B.V. | 1 | 0 | € 197.750 | 1 |
| Ocean Energy.International BV | 1 | 0 | € 17.440 | — |
| Ocean Grazer B.V. | 4 | 0 | € 80.000 | — |
| Ocean Network Express Pte. Ltd. (One) | 0 | 1 | — | — |
| Ocean University of China | 0 | 1 | — | — |
| Ocean Winds Belgium Netherlands N.V. | 0 | 1 | — | — |
| OceanBox B.V. | 0 | 1 | — | — |
| Oceano Robotics B.V. | 1 | 0 | € 147.000 | 1 |
| Oceans of Energy B.V. | 4 | 1 | € 444.998 | 4 |
| OceansX B.V. | 0 | 1 | — | — |
| Oceanz B.V. | 0 | 3 | — | — |
| OcellO B V | 1 | 5 | € 491.574 | — |
| OchtendMensen B.V. | 0 | 1 | — | — |
| OCI bv | 0 | 1 | — | — |
| OCI Methanol Marketing B.V. | 0 | 1 | — | — |
| OCI N.V. | 0 | 1 | — | — |
| OCI Nitrogen B.V. | 0 | 2 | — | — |
| Ockyz B.V. | 1 | 0 | € 20.000 | — |
| OCRN B.V. | 1 | 0 | — | — |
| Octinion Nederland BV | 0 | 1 | — | — |
| Octo Asset Management B.V. | 0 | 2 | — | — |
| Octosoft B.V. | 1 | 0 | € 20.000 | — |
| Océ-Technologies B.V. | 1 | 0 | € 923.837 | — |
| Oda Zorg B.V. | 1 | 0 | — | — |
| Oddity.ai B.V. | 1 | 0 | € 238.140 | — |
| Odour Balance B.V. | 4 | 0 | € 84.999 | — |
| ODSecurity B.V. | 2 | 0 | € 40.000 | — |
| Office App B.V. | 1 | 0 | € 10.000 | — |
| Office Athletes Group B.V. | 1 | 0 | € 154.000 | — |
| Officelynq B.V | 1 | 0 | € 25.000 | — |
| Offroad Apps B.V. | 1 | 1 | € 20.000 | — |
| Offroad Medical B.V. | 0 | 1 | — | — |
| Offshore en Industrie B.V. | 0 | 1 | — | — |
| Offshore Equipment Solutions B.V. | 1 | 0 | € 50.000 | — |
| Offshore Solar B.V. | 0 | 0 | — | 1 |
| Offshore Wind Logistics B.V. | 1 | 0 | € 25.000 | — |
| OFN Projecten B.V. | 1 | 0 | € 20.000 | — |
| Ogygia B.V. | 1 | 0 | € 106.960 | 1 |
| Oijen Melkgeiten B.V. | 1 | 0 | € 1.351.797 | — |
| OIM Noordwijkerhout B.V. | 0 | 2 | — | — |
| Olfactie B.V. | 1 | 1 | € 20.000 | — |
| Olijfolie Instituut B.V. | 4 | 1 | € 120.000 | — |
| Olijve Constructie B.V. | 1 | 0 | € 25.000 | — |
| Olivabot BV | 0 | 1 | — | — |
| Olmia B.V. | 2 | 0 | € 40.000 | — |
| Olmia Robotics B.V. | 2 | 0 | € 40.000 | — |
| OLYF-FARM B.V. | 0 | 1 | — | — |
| Olympic Food Group B.V. | 0 | 1 | — | — |
| Olympic Holding B.V. | 2 | 0 | € 50.000 | — |
| OLYMPUS INVESTMENT MIDCO B.V. | 1 | 0 | € 4.000.000 | — |
| Olypmic Holding BV | 1 | 0 | € 48.333 | — |
| Omega Defense B.V. | 0 | 1 | — | — |
| Omega Green B.V. | 1 | 0 | € 20.000 | — |
| Omines Internetburau B.V. | 1 | 0 | € 24.416 | — |
| Omines Internetbureau B.V. | 0 | 1 | — | — |
| Ommelander Ziekenhuis Groningen | 1 | 0 | — | — |
| Omni Wind B.V. | 3 | 0 | € 385.100 | — |
| Omnia Analytics B.V. | 0 | 1 | — | — |
| OmniDrones Projects B.V. | 6 | 0 | € 120.000 | — |
| OmniExtract B.V. | 1 | 1 | € 25.000 | — |
| Omnigen B.V. | 5 | 6 | € 1.073.861 | — |
| Omniplan B.V. | 0 | 1 | — | — |
| Omniradar B.V. | 1 | 0 | € 1.400.000 | — |
| Omnivent Techniek B.V. | 3 | 0 | € 59.600 | — |
| OMS-i B.V. | 1 | 0 | € 24.936 | — |
| On Air BV | 1 | 0 | € 20.000 | — |
| On the job B.V. | 1 | 0 | — | — |
| ON2IT B.V. | 1 | 0 | € 99.900 | — |
| ON2Quest B.V. | 1 | 0 | € 20.000 | — |
| ON2Quest Holding B.V. | 1 | 1 | € 20.000 | — |
| Oncosciences B.V. | 0 | 1 | — | — |
| Onderlinge Waarborgmaatschappij CZ groep U.A. | 0 | 4 | — | — |
| Ondernemers Collectief Bodegraven (OCB) | 0 | 0 | — | 2 |
| Ondernemers Platform Bodegraven-Reeuwijk | 0 | 0 | — | 3 |
| Ondernemers Vereniging De Rottemeren | 0 | 0 | — | 1 |
| Ondernemers Vereniging Oostplaat | 0 | 0 | — | 1 |
| Ondernemers Vereniging Papendrecht | 0 | 0 | — | 1 |
| Ondernemersvereniging BIZ Maaldrift | 0 | 0 | — | 2 |
| Ondernemersvereniging Kerkbuurt | 0 | 0 | — | 1 |
| One Architecture B.V. | 1 | 0 | € 112.230 | — |
| One B.V. | 1 | 0 | € 7.500 | — |
| One Farm B.V. | 1 | 0 | € 20.000 | — |
| ONE-Dyas B.V. | 0 | 2 | — | — |
| Onegini B.V | 1 | 0 | € 194.080 | — |
| Oneplanetcrowd International B.V. | 1 | 0 | € 25.000 | — |
| Onera B.V. | 1 | 0 | € 500.000 | — |
| OneThird B.V. | 2 | 0 | € 210.400 | — |
| Onexus B.V. | 0 | 1 | — | — |
| Onicor BV | 1 | 0 | € 494.194 | — |
| OnLevel B.V. | 3 | 0 | € 99.692 | — |
| ONLINE PUBLISHER B.V. | 2 | 0 | € 40.000 | — |
| Online Sports Media Europe B.V. | 1 | 0 | € 25.000 | — |
| Ontdekzorg B.V. | 1 | 0 | — | — |
| Ontwerp- en Constructieburo voor Jacht- en Scheepsbouw Sneek B.V. | 2 | 0 | € 75.000 | — |
| Ontwerpbureau Fix B.V. | 0 | 1 | — | — |
| Ontwikkelingsbedrijf Noord-Holland Noord N.V. | 0 | 1 | — | — |
| Ontwikkelingsmaatschappij Het Idee B.V (solynta) | 0 | 2 | — | — |
| Ontwikkelingsmaatschappij Oost-Nederland N.V. | 1 | 1 | € 139.875 | — |
| Ontzorgd B.V. | 1 | 0 | € 20.000 | 1 |
| Onu B.V. | 0 | 1 | — | — |
| ONWARD Medical B.V. | 1 | 0 | € 10.000.000 | — |
| ONWARD Medical N.V. | 2 | 0 | € 1.000.000 | — |
| Onze Huisartsen Coöperatie U.A. | 0 | 1 | — | — |
| ONZE stichting | 0 | 1 | — | — |
| Ooijens Beheer B.V. | 0 | 0 | — | 2 |
| OOMPH Productions B.V. | 1 | 0 | € 20.000 | 1 |
| OOMPH Systems BV | 1 | 0 | € 20.000 | 1 |
| Ooms Nederland Holding bv | 0 | 1 | — | — |
| Oosterbeek B.V. | 0 | 1 | — | — |
| Oosterhuis Solutions B.V. | 1 | 0 | € 24.999 | — |
| Oostwoud International B.V. | 1 | 0 | € 20.000 | — |
| Oot Granola B.V. | 1 | 0 | € 20.000 | — |
| OPE Group B.V. | 1 | 0 | € 20.000 | 1 |
| Opella, Christelijke Stichting voor wonen, zorg en welzijn | 7 | 0 | € 398.592 | — |
| Open Social BV | 1 | 0 | € 20.000 | — |
| Open Terminology Server B.V. | 1 | 0 | € 20.000 | — |
| Open Universiteit | 1 | 2 | € 154.707 | — |
| Openclaims Netherlands B.V. | 1 | 0 | € 20.000 | — |
| OpenDeur B.V. | 2 | 0 | € 40.000 | — |
| Openlab B.V. | 1 | 0 | € 20.000 | — |
| Openplus Systems B.V. | 1 | 0 | € 25.000 | — |
| OperaSana B.V. | 1 | 0 | € 20.000 | — |
| Opiliones B.V. | 6 | 0 | € 488.200 | — |
| OPINITY OOST B.V. | 1 | 0 | € 20.000 | — |
| Opnieuw B.V. | 2 | 1 | € 45.000 | — |
| OPNT B.V. | 1 | 0 | € 219.018 | — |
| Opp App B.v. | 1 | 0 | € 20.000 | — |
| Oppr B.V. | 0 | 0 | — | 1 |
| Opra Turbines B.V. | 0 | 1 | — | — |
| Opra Turbines International B.V. | 1 | 0 | € 103.040 | — |
| Ops Factor B.V. | 1 | 0 | € 20.000 | — |
| OPTECS B.V. | 3 | 0 | € 237.750 | 3 |
| Optics11 B.V. | 6 | 2 | € 1.438.430 | — |
| Optilogix B.V. | 3 | 0 | € 27.012 | — |
| Optima-Textiles B.V. | 0 | 2 | — | — |
| Optimedic B.V. | 1 | 0 | € 20.000 | — |
| Optimizers B.V. | 0 | 1 | — | — |
| Optiply B.V. | 3 | 0 | € 90.000 | — |
| Optiply Holding B.V. | 3 | 0 | € 60.000 | — |
| Optiqua B.V. | 1 | 0 | € 1.126.402 | — |
| OptiSenseData B.V. | 1 | 0 | € 126.070 | — |
| OptiSolar B.V. | 1 | 0 | € 20.000 | — |
| OPTISPORT HOLDING B.V. | 1 | 0 | € 6.400.000 | — |
| Optivolt B.V. | 2 | 0 | € 44.960 | — |
| Oramonlabs B.V. | 1 | 0 | € 25.000 | — |
| Orange M-Health BV | 1 | 0 | € 125.601 | — |
| Orange Pearl BV | 1 | 0 | € 183.960 | 1 |
| Orange Plastics B.V. | 0 | 1 | — | — |
| Orange Quantum Systems Operational B.V. | 2 | 2 | € 550.000 | 2 |
| OrangeGas B.V. | 1 | 0 | € 24.720 | — |
| Orangewave Solutions BV | 2 | 0 | € 40.000 | — |
| Oranje Zorg Nederland B.V. | 1 | 0 | € 22.456 | — |
| Oranje-Nassau Energie B.V. | 0 | 2 | — | — |
| Orbion Technologies B.V. | 0 | 1 | — | — |
| Orbis B.V. | 1 | 0 | € 129.765 | — |
| Orbisk B.V. | 1 | 1 | € 446.087 | — |
| Orbital Eye B.V. | 3 | 0 | € 886.900 | 1 |
| Orderli B.V. | 1 | 0 | € 20.000 | — |
| OrderUp International B.V. | 1 | 0 | € 18.000 | — |
| Ore Energie B.V. | 1 | 0 | € 2.407.227 | — |
| Ore Energy B.V. | 1 | 2 | € 20.000 | — |
| OREC Groep B.V. | 1 | 0 | € 24.900 | — |
| OREC Hilversum B.V. | 1 | 0 | € 24.900 | — |
| Orexa B.V. | 4 | 0 | € 206.825 | — |
| Orfenix Holding B.V. | 1 | 0 | € 20.000 | 1 |
| Orffa International Holding | 0 | 1 | — | — |
| Orfi Food Bv | 2 | 0 | € 64.160 | — |
| ORFI food ingredients B.V. | 2 | 0 | € 19.920 | — |
| OrganicTank B.V. | 2 | 0 | € 40.000 | — |
| Organiq B.V. | 1 | 1 | € 155.785 | — |
| Orgaplus Facility B.V. | 1 | 0 | € 10.000 | — |
| Oriant Zorg B.V. | 2 | 0 | € 18.906 | — |
| Orikami B.V. | 1 | 0 | € 24.904 | — |
| Orphiction B.V. | 0 | 1 | — | — |
| Orsted Hydrogen Netherlands Holding B.V. | 1 | 0 | € 110.804.896 | — |
| Orsted Wind Power Netherlands B.V. | 0 | 2 | — | — |
| ORTEC BV | 0 | 1 | — | — |
| Ortec Finance B.V. | 0 | 1 | — | — |
| Ortec Logiqcare B.V. | 0 | 2 | — | — |
| ORTELIO LTD | 0 | 1 | — | — |
| Orthevo B.V. | 1 | 0 | € 20.000 | — |
| OrthoFoodie B.V. | 0 | 0 | — | 1 |
| OrthoKey B.V. | 1 | 0 | € 20.000 | — |
| Orthopedie Technologie Nijmegen B V | 1 | 0 | € 10.000 | — |
| Orthoshapes B.V. | 1 | 0 | € 141.120 | — |
| Orthros B V | 0 | 2 | — | — |
| Orthros Medical B.V. | 2 | 2 | € 2.599.554 | — |
| Orvion B.V. | 3 | 3 | € 602.434 | 3 |
| ORYX Movement Solutions B.V. | 0 | 1 | — | — |
| Osind Medi Tech B.V. | 1 | 0 | € 20.000 | — |
| Osiris BV | 1 | 0 | € 350.000 | — |
| OSRE B.V. | 1 | 0 | € 20.000 | — |
| Ostara Innovations B.V. | 1 | 0 | € 345.800 | — |
| Osteo-Pharma B.V. | 3 | 0 | € 2.317.758 | — |
| OTE Pharma Sol B.V. | 2 | 0 | € 40.000 | — |
| OTech B.V. | 1 | 0 | € 20.000 | — |
| OTFLOW B.V. | 4 | 0 | € 231.644 | 1 |
| Otis Insight B.V. | 1 | 0 | € 119.559 | — |
| OTN Implants B.V. | 1 | 0 | € 128.468 | — |
| OTX Logistics B.V. | 0 | 1 | — | — |
| Ouborg & Gatin B.V. | 0 | 0 | — | 1 |
| Ouborg Gatin B.V. | 1 | 0 | € 20.000 | — |
| Oudcomb BV | 2 | 0 | € 219.460 | — |
| Oudheidkundige vereniging "Het land van Strijen | 0 | 0 | — | 1 |
| OurMind B.V. | 0 | 1 | — | — |
| Outback EXP B.V. | 1 | 0 | € 20.000 | — |
| Outdoor Alpine B.V. | 0 | 0 | — | 1 |
| Outdoor Furniture Nederland B.V. | 1 | 0 | € 20.000 | — |
| Outer Plane Solutions B.V. | 1 | 0 | € 24.984 | — |
| Outlander B.V. | 3 | 4 | € 282.064 | 3 |
| Outline Music B.V. | 0 | 1 | — | — |
| Oval Economy B.V. | 1 | 0 | € 20.000 | — |
| Overink Holding B.V. | 1 | 0 | € 20.000 | — |
| Overlasko Konstruktie B.V. | 0 | 1 | — | — |
| Overstag B.V. | 1 | 0 | € 20.000 | — |
| OWL Heavy Lift B.V. | 1 | 0 | € 20.000 | — |
| Owlin B.V. | 4 | 1 | € 113.120 | — |
| OWNER B.V. | 1 | 0 | € 20.000 | — |
| OwnSite B.V. | 0 | 1 | — | — |
| Oxaigen B.V. | 1 | 0 | € 172.240 | — |
| Oxari B.V. | 1 | 0 | € 20.000 | 1 |
| Oxensis Limited | 0 | 1 | — | — |
| Oxious Talent Factory B.V. | 0 | 1 | — | — |
| Oxipack B.V. | 1 | 0 | € 84.700 | — |
| Oxitope Pharma B.V. | 1 | 0 | € 432.131 | — |
| OXOT B.V. | 1 | 0 | € 97.650 | — |
| Oxycom Fresh Air B.V. | 2 | 0 | € 44.999 | — |
| Oyne B.V. | 1 | 0 | € 20.000 | — |
| Oyster Heaven Europe B.V. | 1 | 0 | € 198.950 | — |
| Ozephius Stainless B.V. | 0 | 1 | — | — |
| OZOverbindzorg B.V. | 0 | 1 | — | — |