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
| Wal-Mart Canada (529) | Walmart Canada (111) |
| Walmart Canada Corp (785) | Wardrop Engineering (5) |
| Wargaming (5) | Washington Metropolitan Area Transit Authority (22) |
| Waste Management (64) | Waste Management, Inc. (7) |
| Waterfront International Ltd. (10) | Weatherford (8) |
| Weed Man Canada (8) | Wegmans (6) |
| Wells Fargo (9) | Wescam (16) |
| West Bend (7) | West Jet (9) |
| Western Financial Group (5) | WestJet (20) |
| Whistler Personnel Solutions (7) | Wholesale Merchant Services (12) |
| Williams Alton & Associates Inc. (9) | WilsonHCG (12) |
| WIND Mobile (5) | Windsor Star Ad (8) |
| Windstream Communications (12) | Wine Rack (48) |
| Winston Retail (10) | Wishabi Inc (14) |
| WMATA (23) | Wood Bench Inc (5) |
| WorkerBee TV (6) | Workplace Safety Group (6) |
| World Health Club (26) | Worldwide Immigration Consultancy Services (WWICS) (13) |
| Worley Parsons (6) | WorleyParsons (211) |
| WorleyParsons Ltd (9) | WSIB (5) |
| Wurth Canada (5) | www.sierraatlantic.com (6) |
| Wyle (11) | Wyndham International (5) |
| Wyndham Worldwide (14) |