| Abbreviation | Definition |
|---|---|
| BDL | Flanigans Enterprises, Inc. |
| BDR | Blonder Tongue Labs, Inc. |
| BDS | Bridgestreet Accommodation, Inc. |
| BET | Bethlem Corporation |
| BET | Bethlem Corporation (de-listed) |
| BET | Bethlem Corporation (de-listed) |
| BFD | BostonFed Bancorp, Inc. |
| BFX | B F X Hospitality Group, Inc. |
| BGO | Bema Gold Corporation |
| BHB | Bar Harbor Bankshares |
| BHC | B H C Communications, Inc. |
| BHO | B & H Ocean Carriers, LTD. |
| BIN | Sames Corporation |
| BIOA | Bio Radiation Labs, Inc. Class A |
| BIOA | Bio-Amber, Incorporated |
| BIOB | Bio Radiation Labs, Inc. Class B |
| BIOB | Bio Radiation Labs, Incorporated Class B (de-listed) |
| BIOB | Bio Radiation Labs, Incorporated Class B (de-listed) |
| BIS | Barrister Information Systems Company |
| BKC | American Bank of Waterbury Connecticut |