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| 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 (10) |
| Whitehall Resources (5) | Willemen Groep NV (5) |
| Willy Naessens Industriebouw (6) | Wilrijk, Gasthuiszusters Antwerpen (13) |
| Wilrijk, GZA Campus Sint Augustinus (31) | Wit-Gele Kruis van Antwerpen (36) |
| WOLTERS KLUWER BELGIE (12) | Wolters Kluwer Int.Serv (5) |
| Work Express Sp. z o.o. (27) | WTCB (5) |
| Würth (6) |