| BASE | Backward Society Education 
| Others |
| BASE | Bangalore Academy of Science and Education
| Others |
| BASE | Bank-Americard Service Exchange
| Others |
| BASE | Baryon Antibaryon Symmetry Experiment
| Others |
| BASE | Base Amount For School Equity
| Others |
| BASE | Basel Agency for Sustainable Energy
| Others |
| BASE | Basic Academic Subjects Examination
| Others |
| BASE | Basic Analysis and Security Engine
| Others |
| BASE | Bay Area Studio Engineering
| Others |
| BASE | Bedini Audio Special Environment
| Others |
| BASE | Behavior Academic And Social Educator
| Others |
| BASE | Behavioral Analysis Security Engine
| Others |
| BASE | Behavioral Approach to Safety Enhancement
| Others |
| BASE | Bible Archaeology Search Exploration
| Others |
| BASE | Bielefeld Academic Search Engine
| Others |
| BASE | Bioarray Software Environment
| Others |
| BASE | Boston Area Semiconductor Education (Council)
| Others |
| BASE | Break All Sharp Edges
| Others |
| BASE | Bridge Antennae Span Earth
| Others |
| BASE | Bridge, Antennas, Spans, and Earth
| Others |
| BASE | Bridging Academics Service And Ethics
| Others |
| BASE | Brigade Automated Simulation Exercise
| Others |
| BASE | Building Aerial Span And Earth
| Others |
| BASE | Building Antenna Span Earth
| Others |
| BASE | Building Antennae Span And Earth
| Others |
| BASE | Building Antennae Span Earth
| Others |
| BASE | Buildings Antennas Span And Earth
| Others |
| BASE | Buildings, Antennas, Spans, and Earth
| Others |
| BASE | Business Accounting and Skills Education
| Others |
| BASE | Business Attraction Support Establishment
| Others |
| BASE | Business, Accounting and Skills Education
| Others |
| BASE | The Buddhist Alliance For Social Engagement
| Others |