| Rank | Abbreviation | Meaning |
|---|
| ***** | AMBS | American Board of Medical Specialties
| |
| *** | AMBS | Alfred McAlpine Business Services Ltd.
| |
| *** | AMBS | Azar Mortarless Building System
| |
| *** | AMBS | Asset Management Billing System
| |
| *** | AMBS | Atlantic Medical Billing Solutions
| |
| *** | AMBS | Agricultural Mortgage Backed Securities
| |
| ** | AMBS | Access Management Basic Services
| |
| ** | AMBS | Accurate Medical Billing Solutions
| |
| ** | AMBS | Advanced Memory Buffers
| |
| ** | AMBS | Australian Market Basket Survey
| |
| * | AMBS | Alliance of Minority Business Students
| |
| * | AMBS | Australian Museum Business Services
| |
| * | AMBS | Active Magnetic Bearings
| |
| * | AMBS | Academy of the Most Blessed Sacrament
| |
| * | AMBS | Aggieland Medical Billing Service
| |
| * | AMBS | anti-mouse brain serum
| |
| * | AMBS | Associated Mennonite Biblical Seminaries
| |
| * | AMBS | Atlantic Mountain Bike Series
| |
| * | AMBS | Advanced Medical Billing Services
| |
| * | AMBS | Associated Mennonite Bible Seminary
| |
| * | AMBS | Airstream Mobile Business Solutions
| |
| * | AMBS | Advanced Marine Biological System
| |
| * | AMBS | Air Management Blank Sled
| |
| * | AMBS | Associated Mennonite Biblical Seminary
| |
| * | AMBS | Alfred McAlpine Business Services
| |