Mark's Locksmith
| Bach | Germany | L1054B |
| Baldwin | 1145, 1145A, 1510, 1511 | |
| Banner | KW1 | |
| Bargman | RV | L1054M, K1054B, K1122B, K1122C, K1122N, L1098M, K1122D, 1761B, IN24, Y103 |
| Barrecrafters | ski rack | N1069B, 1069V, 1069E, 1069N |
| Barrows | 1021B, 1021A | |
| Basco | Briggs & Stratton | See Ilco #60 |
| Baton | Y54, 1041DX | |
| Batu | bicycle lock | AP5 |
| Bauer | O1122, O1122A, O1122B, O1122C, O1122BE, 1069N, 1618, 1618R, BD247 | |
| Bayer | pickup cap | Y11, Y12 |
| Bayport | WR3 | |
| Beco | IL1 | |
| Belknap | See Slaymaker | |
| Bell | X1014F, 1092, 1054K, 999, O997E, L1054B | |
| Belleville | 1036, 1036G, 1036S, 1036SF, 1036U | |
| Belnap Hardware | X1014F, 1011, N1011P, EA27, KW1, SC1 | |
| Belwith | D1098X, 1092, 1120D, 1098M, 997E, 997EB, SL1 | |
| Bendix | boats, planes | 1069N, O1122 |
| Berloy | cabinet locks | 1125A |
| Better Built | tool box | BD142, BD247 |
| Bezons | VW32 | |
| Bike Pal | padlock | M10, VR91 |
| Bill Corp. | CO106 | |
| Bilt-Rite | 1023 | |
| Bird | padlock | 999 |
| Black Knight | padlock | 999 |
| Blaco | 1054K, 1176, 1004 | |
| Blau | gas cap | TR38 |
| Bluegrass | N1011P | |
| Boats | see specific name | |
| Bobrick | S1000V, SR1000V | |
| Bolen | O1122, 1137B | |
| Bomag | MRT1RP | |
| Bommer | mailboxes | 1003M, R1003M, 1069LC |
| Bommer | spring hinge | NA12 |
| Brainard Mfg. Co. | 999,O1122 | |
| Branded | fork lift | 62FS |
| Bricklin | RA4 | |
| Briggs & Stratton | See Ilco #60 | |
| Brinks | 1145, 1065D, 1065E | |
| Brinks | safe | BD551 |
| Bronx, NY | L1003M | |
| Brook | deadbolt | AR1 |
| B-SS-Bane Sekunie | Y11 | |
| Buffalo | Y1, Y52 | |
| Bull | tail gate lock | B59, X162 |
| Bumil | safes | BD551 |
| Burich Co. | 1054 |