| American Computer Consultants Inc. | 28 | $2.6M | New York City |
| American Computer Development, Incorporated | 10 | $3.1M | Defense Microelectronics Activity |
| American Construction Co., Inc. | 6 | $30M | Department of the Army |
| American Cord & Webbing Co Inc | 3 | $16K | Defense Logistics Agency |
| The American Correctional Association | 7 | $184K | Department of State |
| American Correctional Healthcare, Inc. | 141 | $21M | Federal Prison System / Bureau of Prisons |
| American Council on Education | 11 | $29M | Department of the Navy |
| American Council on the Teaching of Foreign Languages, Inc. | 3 | $14M | Department of the Army |
| American Councils for International Education: Actr/Accels, Inc. | 4 | $688K | Department of State |
| American Custom Meats, LLC | 20 | $56M | Agricultural Marketing Service |
| American Defense Components, LLC | 157 | $877K | Defense Logistics Agency |
| American Design Associates | 17 | $49K | State of Delaware |
| American Devices, Inc. | 115 | $477K | Defense Logistics Agency |
| American Diabetes Association | 3 | $18K | City of Los Angeles Controller |
| American Digital Cartography Inc | 3 | $602K | MTA Procurements |
| American Disposal Inc | 3 | $161K | Indian Health Service |
| American Diving Supply LLC | 21 | $917K | Defense Logistics Agency |
| American Door | 5 | $69K | NY State Authorities |
| American Door & Hardware LLC | 22 | $14K | City-Parish of Baton Rouge |
| American Eagle Protective Services Corp | 15 | $71M | Office of Procurement Operations |
| American Electronic Warfare Associates, Incorporated | 41 | $802M | Department of the Navy |
| American Electronics, Inc. | 5 | $93M | Department of the Navy |
| American Elevator Company, Inc. | 3 | $217K | Department of Veterans Affairs |
| American Energy Management LLC | 3 | $584K | Department of Veterans Affairs |
| American Energy Technologies Company | 7 | $5.9M | Defense Logistics Agency |
| American Engineering Corporation | 236 | $493M | Department of the Navy |
| American Engineers Inc | 7 | $998K | Department of the Army |
| American Equipment Systems LLC | 3 | $92K | Department of the Air Force |
| American Express Travel Related Services Co Inc | 4 | $12K | City of Los Angeles Controller |
| American Finance Association | 3 | $127 | Oregon State Treasury |
| American Fire Protection Group, Inc | 3 | $3K | City of Mesquite |
| American Foods Group, LLC | 21 | $28M | Agricultural Marketing Service |
| American Fuel Cell and Coated Fabrics Company, LLC | 40 | $47M | Defense Logistics Agency |
| American Geosciences Institute | 3 | $80K | National Aeronautics and Space Administration |
| American Group Contrax, Agx-Llc | 4 | $515K | Department of Veterans Affairs |
| American Heart Association Inc | 32 | $24M | City-Parish of Baton Rouge |
| American Heritage Life Insurance Co | 11 | $-174 | City of Mesquite |
| American Hofmann Corp | 16 | $1.1M | Department of the Navy |
| American Hospital Association | 3 | $529K | Centers for Disease Control and Prevention |
| American Indian Association of Tucson, Inc | 15 | $10M | Indian Health Service |
| American Indian Council on Alcoholism Inc | 4 | $160K | Indian Health Service |
| American Industrial Company, LLC | 41 | $340K | Defense Logistics Agency |
| American Industrial Hygiene Association | 13 | $625K | Department of the Navy |
| American Institute in Taiwan | 8 | $317M | Department of State |
| American Institute of Aeronautics and Astronautics, Inc | 8 | $553K | Department of the Navy |
| American Institute of Certified Public Accountants | 4 | $1K | Oregon State Treasury |
| American Institutes for Research in the Behavioral Sciences | 31 | $331M | Centers for Medicare and Medicaid Services |
| American Integration Contractors LLC | 20 | $197K | City-Parish of Baton Rouge |
| American Interiors Inc | 3 | $419K | Department of Veterans Affairs |
| American International Contractors Inc | 92 | $328M | Department of the Army |
| American International Contractors (Special Projects) Inc. | 3 | $389M | Department of State |
| American Italian Coalition of Organizations Inc | 3 | $4.1M | New York City |
| American Jet International Corp | 6 | $1.3M | Department of Veterans Affairs |
| American Labelmark Company | 10 | $21K | Defense Logistics Agency |
| American Lady Vets Services, Inc | 14 | $13M | Department of Veterans Affairs |
| American Life Insurance Company | 13 | $801K | Department of State |
| American Life Insurance Co (Dubai Branch) | 29 | $19M | Department of State |
| American Life Insurance Co. (Lebanon Branch) | 11 | $11M | Department of State |
| American Linen Supply of New Mexico Inc | 4 | $626K | Department of Veterans Affairs |
| American Machine Tool Repair and | 15 | $953K | MTA Procurements |
| American Maglev Technology of Florida, Inc. | 3 | $4.6M | Department of the Navy |
| American Maintenance & Supplies, Inc | 12 | $2.7M | Department of the Air Force |
| American Management Association International | 6 | $255K | New York City |
| American Marine Corporation | 3 | $6.6M | Department of the Navy |
| American Marine Engineering Services, LLC | 3 | $2.5M | U.S. Coast Guard |
| American Material Handling, Inc. | 446 | $98M | Defense Logistics Agency |
| American Medequip LLC | 6 | $125K | Department of Veterans Affairs |
| American Medical Association | 10 | $1.2M | Department of Veterans Affairs |
| American Medical Response Ambulance Service, Inc. | 12 | $6.1M | Department of Veterans Affairs |
| American Medical Response of Cochise County LLC | 7 | $1.1M | Department of Veterans Affairs |
| American Medical Response of Colorado, Inc. | 6 | $1.7M | Department of Veterans Affairs |
| American Medical Response of Connecticut, Inc | 4 | $12M | Department of Veterans Affairs |
| American Medical Response of New York, LLC | 6 | $1.9M | Department of Veterans Affairs |
| American Medical Response West | 15 | $9.1M | Department of Veterans Affairs |
| American Mergers & Manufacturing International LLC | 5 | $2.4M | Department of the Navy |
| American Messaging | 3 | $920K | NY State Authorities |
| American Messaging Services, LLC | 5 | $739K | Department of the Air Force |
| American Metal Bearing Co | 13 | $3.0M | Department of the Navy |
| American Metal Fabrication Inc | 16 | $77K | Defense Logistics Agency |
| American Metal Stamping & Spinning Inc | 3 | $0 | Defense Logistics Agency |
| American Molecular Laboratories Inc. | 3 | $83K | Indian Health Service |
| American Motorcycle Training, Inc. | 17 | $13M | Department of the Navy |
| American Moving and Storage of Leesville, Inc. | 25 | $1.3M | Department of the Army |
| American Moving Parts LLC | 385 | $169K | City of Los Angeles Controller |
| American Nail Plate Lighting, Inc. | 3 | $55K | City of Mesquite |
| American National Red Cross, the | 161 | $281M | Department of Veterans Affairs |
| American National Standards Institute Incorporated | 11 | $1.2M | Department of the Air Force |
| American Nat'L Standards Institute | 4 | $219K | MTA Procurements |
| American Office Machines Inc | 43 | $43K | City-Parish of Baton Rouge |
| American Ordnance LLC | 176 | $2.1B | Department of the Army |
| American Pacific Corporation | 5 | $2.0M | Department of the Navy |
| American Pacific Plastic Fabricators, Inc. | 12 | $3.8M | Defense Logistics Agency |
| American Pavement Solutions, Inc. | 3 | $826K | Department of the Army |
| American Pest Management Inc | 6 | $2.5M | National Institutes of Health |
| American Pet Insurance Company | 5 | $33M | Department of Veterans Affairs |
| American Petroleum Services Mil LLC | 50 | $423K | Defense Logistics Agency |
| American Petroleum Tankers LLC | 3 | $232M | Department of the Navy |
| American Physical Society | 4 | $469K | Department of the Navy |
| American Polarizers Inc | 5 | $124K | MTA Procurements |
| American Pollution Control Corp | 5 | $757K | Department of the Navy |