A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 1
| W&BS (8) | W@btech (6) |
| Waak (5) | Walters People (109) |
| Walters People Brussel (6) | Walters People Groot-Bijgaarden (10) |
| WandBS Doradztwo Personalne (5) | WDM Belgium (12) |
| Weljongniethetero.be (11) | Westinghouse Electric Company (8) |
| Whitehall Resources (5) | Willemen Groep NV (5) |
| Willy Naessens Group (8) | Willy Naessens Industriebouw (8) |
| Wilrijk, Gasthuiszusters Antwerpen (13) | Wilrijk, GZA Campus Sint Augustinus (31) |
| Wit-Gele Kruis van Antwerpen (36) | WOLTERS KLUWER BELGIE (11) |
| Wolters Kluwer Int.Serv (5) | Work Express Sp. z o.o. (29) |
| WTCB (5) | Würth (5) |