| Nice Day Group Inc | New York | NY | 3 |
| Niche IT Software Solutions LLC | Irving | TX | 9 |
| Nicholson Construction Company | Canonsburg | PA | 9 |
| Nic Info Tek Inc | Temple Terrace | FL | 107 |
| Nicolette IT Services Inc | Eagan | MN | 5 |
| Nidaan Systems, Inc. | Richardson | TX | 9 |
| Nielsen Consumer LLC | Chicago | IL | 42 |
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| Niha Technologies, Inc | Herndon | VA | 52 |
| Nihilent Inc. | Roseville | MN | 8 |
| Nikaya LLC. | Memphis | TN | 7 |
| Nikon Research Corporation of America | Belmont | CA | 2 |
| Nikotech System LLC | Syosset | NY | 3 |
| Niktor IT Inc | Farmington | CT | 37 |
| Niktor LLC | Hauppauge | NY | 6 |
| Nile Global, Inc. | San Jose | CA | 7 |
| Nile Group | Denver | CO | 18 |
| Nile Tech Inc | Jersey City | NJ | 66 |
| Nimbl Consulting LLC | Berwyn | PA | 8 |
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| Nimbusaitech LLC | Glen Allen | VA | 15 |
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| Nintendo Technology Development Inc. | Redmond | WA | 4 |
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| NIRA, Inc. | Washington | DC | 5 |
| Nirvana Enterprises LLC | Edison | NJ | 13 |
| Nisum Technologies Inc. | Brea | CA | 261 |
| NITCO Inc | Katy | TX | 20 |
| Niteosoft Inc | Princeton | NJ | 21 |
| Nitor Infotech Inc | Schaumburg | IL | 12 |
| Nitor Partners LLC | Westlake | OH | 3 |
| Nitsch Engineering, Inc. | Boston | MA | 4 |
| Nitto Denko Technical Corporation | Oceanside | CA | 3 |
| Nitya Software Solutions Inc | Murray | UT | 43 |
| Nityosoft Incorporated | Charlotte | NC | 8 |
| Nivid Infotech, Inc. | Sterling | VA | 112 |
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| NJBSoft, LLC | Phoenix | AZ | 5 |
| NJ Consulting and Services LLC | Cedar Park | TX | 5 |
| Njs Associates Company | Bridgewater | NJ | 18 |
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| NobleSoft Solutions, Inc. | Langhorne | PA | 161 |
| Noblesoft Technologies Inc | Flower Mound | TX | 40 |
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| Northstar Group, Inc | Rockville | MD | 121 |
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| Northstar Technology Services LLC | Lisle | IL | 10 |
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| Nova Engineering and Environmental LLC | Kennesaw | GA | 6 |
| Nova Law Group LLC | Newark | NJ | 5 |
| Novalink Solutions, LLC | Suwanee | GA | 39 |
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| Novisys LLC | Farmington | MI | 10 |
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| Nube9 LLC | Mason | OH | 50 |
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| Oakton Technologies LLC | McKinney | TX | 39 |
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| Octagon IT LLC | Irving | TX | 47 |
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| Office For The Next Environment Architecture DPC | New York | NY | 3 |
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| Omnireach, LLC | Melbourne | FL | 7 |
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| OM Partners USA, Inc. | Atlanta | GA | 80 |
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| One Algorithm LLC. | Malvern | PA | 13 |
| Onedata Software Solutions LLC | Fort Mill | SC | 6 |
| One Door | Boston | MA | 3 |
| One Global Info Systems LLC | Lisle | IL | 5 |
| OneGlobe LLC | Cambridge | MA | 8 |
| O'Neil Langan Architects PC | New York | NY | 14 |
| One Inc. Software Corporation | Folsom | CA | 4 |
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| Onelink Solution, Inc | San Francisco | CA | 12 |
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| OneMain General Services Corporation | Evansville | IN | 203 |
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| One Stop Global Solutions LLC | Madison | WI | 9 |
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| One Tech IT Solutions LLC | Marlboro | NJ | 5 |
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| ONEUS Technologies LLC | West Des Moines | IA | 17 |
| ONEUS Technologies LLC | East Windsor | NJ | 50 |
| OneView Commerce, Inc. | Hingham | MA | 3 |
| oneZero Financial Systems LLC | Somerville | MA | 7 |
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| Onus Global Fulfillment Solutions LLC | Ontario | CA | 3 |
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| Opelsoft LLC | Piscataway | NJ | 29 |
| Opel Systems | Troy | MI | 15 |
| Open Access Technology International, Inc. | Bloomington | MN | 25 |
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| OpenAI OpCo, LLC | San Francisco | CA | 359 |
| OpenBorder, Inc. | Orlando | FL | 3 |
| OpenBox Solutions, Inc. | Ann Arbor | MI | 15 |
| OpenClinica, LLC | Waltham | MA | 4 |
| OpenCloud IT Solutions Inc | Frisco | TX | 12 |
| Open Credit Technologies Inc | New York | NY | 6 |
| openkyber, LLC | Round Rock | TX | 12 |
| OpenLight Photonics, Inc. | Goleta | CA | 12 |
| Openlink Financial LLC | New York | NY | 5 |
| OpenLogix LLC | Bloomfield Hills | MI | 37 |
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| Open Systems, Inc. | Southfield | MI | 7 |
| Open Systems International, Inc. | Medina | MN | 39 |
| Open Systems Technologies, Inc. | New York | NY | 12 |
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| Openwave Computing LLC. | New York | NY | 11 |
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| Ophy Care Inc. | Duluth | GA | 6 |
| Opinion Dynamics Corporation | Waltham | MA | 2 |
| OP Labs PBC | Sausalito | CA | 7 |
| Opn Architects, Inc | Cedar Rapids | IA | 3 |
| Opportunity IT Solutions LLC | Plano | TX | 12 |
| Optima Engineering, PA | Charlotte | NC | 2 |
| Optimal Blue, LLC | Plano | TX | 6 |
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| Optimal Technologies, Inc. | Lawrenceville | GA | 52 |
| Optime-Tech LLC | Naperville | IL | 17 |
| Optimized Gas Treating, Inc. | Buda | TX | 4 |
| Optimized Investment Holdings, Inc. | Atlanta | GA | 32 |
| Optimoz, Inc. | Rockville | MD | 5 |
| Optimum Engineering Solutions Inc | Edwardsville | IL | 5 |
| Optimum Seismic, Inc. | Vernon | CA | 3 |
| Optimum Systems Inc. | Ashburn | VA | 5 |
| Optimum Technology, Inc. | Powell | OH | 10 |
| Optimus Labs USA LLC | Irving | TX | 3 |
| Optimuss Inc | Ashburn | VA | 7 |
| Optimus Unit LLC | Frisco | TX | 14 |
| Optivent Group Inc | Lisle | IL | 41 |
| Optiv Security Inc. | Leawood | KS | 8 |
| OptML, Inc. | Atlanta | GA | 4 |