| #1968 | Bulldog Software | Z |
| #17094 | Bulldog Software Library | X |
| #1969 | Bulldog Software [1] | Z |
| #1970 | Bulldog Software [2] | Z |
| #1971 | Bulldog Software [3] | Z |
| #1972 | Bullet-Proof Software Inc | Z |
| #17095 | Bullocks Home Entertainment Centre | S |
| #18522 | Bumfun Software | ? |
| #22574 | Bunker Varoken | P |
| #1973 | Buntasoft | Z |
| #1974 | Bureau of Information Science | Z |
| #1975 | Burga's Adventure | Z |
| #1976 | Burga's Program | Z |
| #1978 | Burkhard Taige | ? |
| #17096 | Burnham House Software | S |
| #16085 | Burton Rubin | + |
| #17097 | Burton Software | S |
| #1979 | Bush | ? |
| #17098 | Business & Leisure Micro Computers | H |
| #17099 | Business Micro Centre | A |