| Northeast Tomato Company | 3 | $6.9M | Agricultural Marketing Service |
| Northeastern Association of the Blind at Albany, Inc. | 7 | $209K | Defense Logistics Agency |
| Northeastern Bus Rebuilders Inc | 27 | $125M | MTA Procurements |
| Northeastern Michigan Rehabilitation and Opportunity Center | 4 | $4.5M | Department of the Army |
| Northeastern University | 14 | $8.8M | Office of Procurement Operations |
| Northern Access Transportation, Inc. | 3 | $622K | Department of Veterans Affairs |
| Northern Arizona University | 18 | $27M | Department of the Army |
| Northern California Rescue Training, LLC | 3 | $1.1M | San Francisco |
| Northern Cheyenne Solid Waste Management | 3 | $394K | Indian Health Service |
| Northern Composites, LLC | 13 | $28K | Defense Logistics Agency |
| Northern Construction LLC | 6 | $3.3M | Public Buildings Service |
| Northern Defense Industries, LLC | 33 | $8.0M | Defense Logistics Agency |
| Northern Dreams Construction, Inc | 6 | $2.0M | Department of Veterans Affairs |
| Northern Electric Inc | 3 | $1.8M | Department of the Air Force |
| Northern Lights Realtime & Reporting, Inc. | 5 | $119K | Offices, Boards and Divisions |
| Northern Management Services, Inc. | 69 | $69M | Public Buildings Service |
| Northern Manhattan Improvement Corporation | 12 | $48M | New York City |
| Northern Manor Multicare Ctr | 3 | $279K | NY State Authorities |
| Northern Montana Hospital | 3 | $76K | Department of Veterans Affairs |
| Northern New England Employment Services | 18 | $14M | Department of the Army |
| Northern Plains Electric Cooperative | 6 | $750K | Bureau of Indian Affairs and Bureau of Indian Education |
| Northern Plains Laboratory LLC | 169 | $14M | Indian Health Service |
| Northern Pride Communications Inc | 10 | $4.5M | U.S. Coast Guard |
| Northern Purchase Services, LLC | 9 | $1.1M | Department of Veterans Affairs |
| Northern Safety Co., Inc. | 86 | $449K | City of Mesquite |
| Northern States Power Company | 3 | $3.0M | Department of the Army |
| Northern Supply Inc | 5 | $13M | NY State Authorities |
| Northern Tier Contracting Inc | 6 | $11M | Department of the Army |
| Northern Tool & Equipment | 3 | $0 | NY State Authorities |
| Northern Tool & Equipment Catalog Holdings Inc | 5 | $10K | City of Mesquite |
| The Northern Trust Company | 11 | $15M | City of Los Angeles Controller |
| Northern Wings Repair, Inc. | 7 | $53K | Defense Logistics Agency |
| Northern X-Ray Company | 8 | $1.1M | Indian Health Service |
| Northfield Inn Suites & Conference Center Inc | 6 | $36K | Department of the Army |
| Northland Trailers LLC | 3 | $73K | NY State Authorities |
| Northline Utilities | 50 | $6.0M | NY State Authorities |
| Northline Utilities LLC DBA for Northline Ventures Inc | 5 | $2.9M | NY State Authorities |
| Northrock Minerals LLC | 7 | $1.1M | MTA Procurements |
| Northrop Grumman Italia S.p.a | 10 | $25M | Department of the Army |
| Northrop Grumman Ship Systems, | 4 | $0 | Department of the Navy |
| Northrop Grumman Systems Corporation | 3,647 | $109.6B | Department of the Navy |
| Northside Center for Child Development Inc. | 5 | $39M | New York City |
| Northside Community Development Corporation | 4 | $280K | City of Chicago |
| Northside Community Development Corporation|cleaned-Up | 3 | $627K | City of Chicago |
| Northstar Distributors Inc. | 73 | $94K | Defense Logistics Agency |
| Northstar Electrical Contractors Inc | 3 | $5.0M | Oregon DOT |
| Northstar Marine Inc | 3 | $304K | Department of the Army |
| Northstar Photonics, Inc. | 5 | $2.2M | Department of the Navy |
| Northstar Trekking, LLC | 8 | $1.4M | Departmental Offices |
| Northstate Heavy Equipment Rental | 6 | $400K | Forest Service |
| Northview Hotel LLC | 3 | $9K | Department of the Navy |
| Northville Industries Corp. NIC | 7 | $56M | NY State Authorities |
| Northway Mathers Inc | 3 | $55K | U.S. Coast Guard |
| Northwest Airport Management LP | 7 | $5K | Defense Logistics Agency |
| Northwest Cascade, Inc. | 5 | $136K | Department of the Air Force |
| Northwest Center | 31 | $11M | Department of the Army |
| Northwest Controls Systems Inc | 3 | $1.5M | Department of Veterans Affairs |
| Northwest Energetic Services L.l.c. | 4 | $17K | Forest Service |
| Northwest Fiber LLC | 5 | $151K | State of Washington |
| Northwest Fluid Solutions, Inc. | 5 | $282K | Department of the Navy |
| Northwest Helicopters LLC | 38 | $1.0M | Departmental Offices |
| Northwest Human Resources Management Association | 4 | $2K | Oregon State Treasury |
| Northwest Industrial Services, LLC | 4 | $167K | Department of the Air Force |
| Northwest la War Veterans Home | 5 | $602K | Department of Veterans Affairs |
| Northwest Marine Technology, Inc. | 35 | $5.5M | U.S. Fish and Wildlife Service |
| Northwest Power Inc | 13 | $658K | MTA Procurements |
| Northwest Research Associates, Inc. | 10 | $28M | Department of the Air Force |
| Northwest Side CDC | 8 | $707K | City of Chicago |
| Northwest Side Housing Center | 21 | $6.5M | City of Chicago |
| Northwest Technologies Inc | 4 | $282K | Forest Service |
| Northwestern Corp | 8 | $1.1M | Bureau of Indian Affairs and Bureau of Indian Education |
| Northwestern University | 49 | $66M | National Institutes of Health |
| Northwestern University Settlement Association | 8 | $12M | City of Chicago |
| Northwind-Jacobs Joint Venture | 5 | $27M | Department of the Army |
| Northwoods Aviation Inc | 3 | $60K | Departmental Offices |
| Northwoods Excavating, Inc | 5 | $179K | Department of the Army |
| Norton Lilly International, Inc | 21 | $2.3M | Department of the Navy |
| Norton Rose Fulbright US LLP | 11 | $24M | Department of Energy |
| Norva Plastics Inc | 9 | $25K | Defense Logistics Agency |
| Norwalk Concrete Industries Inc | 3 | $281K | Department of the Navy |
| Norway Labs, Inc | 7 | $61K | Department of the Navy |
| Norwich University | 5 | $1.9M | Department of the Navy |
| Norwich University Applied Research Institutes Ltd | 3 | $11M | Department of the Army |
| Norwood Enterprises Inc | 3 | $159K | Department of the Navy |
| Nossaman LLP | 4 | $291K | City of Los Angeles Controller |
| Not Another Child Inc | 6 | $5.3M | New York City |
| Notoco Industries LLC | 169 | $176K | City-Parish of Baton Rouge |
| Nou Systems Inc | 21 | $19M | Missile Defense Agency |
| Nouveau Elevator Industries, Inc | 22 | $213M | MTA Procurements |
| Nova Biomedical Corp | 31 | $2.1M | Department of State |
| Nova Bus | 3 | $19M | NY State Authorities |
| Nova Bus LFS | 25 | $3.3B | MTA Procurements |
| Nova Bus (US) Inc | 25 | $2.1B | MTA Procurements |
| Nova Genesis Core LLC | 5 | $7K | Defense Logistics Agency |
| Nova Graphic Systems | 6 | $947 | City of Los Angeles Controller |
| Nova Group, Inc. | 24 | $336M | Department of the Navy |
| Nova Power Solutions, Inc. | 48 | $2.2M | Defense Logistics Agency |
| Nova Research, Inc. | 8 | $60M | Department of the Navy |
| Nova Southeastern University, Inc | 10 | $2.7M | Department of the Navy |
| Nova Technologies An Employee-Owned Engineering Company | 5 | $506M | Department of the Air Force |