| ID | Name | Type |
|---|---|---|
| #15983 | William Thompson | + |
| #15428 | William Webb | + |
| #20355 | William Young | + |
| #17886 | Williams Computer Services | A |
| #15429 | Williams Electronics Inc | Z |
| #15430 | Williams Technology | Z |
| #22602 | Willie Borland | + |
| #15431 | Willis Software | Z |
| #15432 | Willowbank Computing | Z |
| #21152 | Willy Lambillotte | + |
| #15433 | Willysoft UK | Z |
| #15434 | Wilson | ? |
| #19721 | Wilton | + |
| #15436 | Wimsoft | Z |
| #15437 | Winchester Holdings Ltd | Z |
| #15438 | Windosoft | Z |
| #15439 | Windward | ? |
| #15440 | Winner | Z |
| #15441 | Winnie Forster | ? |
| #15442 | Winston | - |