| Rank | Abbreviation | Meaning |
|---|
| ***** | COSB | Class of Service Buffer
| |
| ***** | COSB | Central Operations and Systems Branch
| |
| **** | COSB | Center Operations Support Branch
| |
| **** | COSB | Council of Schools for the Blind
| |
| **** | COSB | Canadian Organization of Small Business
| |
| **** | COSB | Crimson Omega Sdn Bhd
| |
| **** | COSB | Chamber Orchestra of the South Bay
| |
| *** | COSB | Current Opinion in Structural Biology
| |
| *** | COSB | California Office of Small Business
| |
| *** | COSB | City of Oxford Silver Band
| |
| *** | COSB | California Oaks State Bank's
| |
| ** | COSB | City of Solana Beach
| |
| * | COSB | California Oaks State Bank
| |
| * | COSB | City of Orange Symphonic Band
| |
| * | COSB | Committee On Small Business
| |
| * | COSB | Cobalt Antimonide
| |
| * | COSB | Curr Opin Struc Biol
| |
| * | COSB | Cache Oblivious String B
| |
| * | COSB | County of San Bernardino
| |